From 5519b844099b850ca0804592ac3306ebe1a9b349 Mon Sep 17 00:00:00 2001
From: Prakash <qxprakash@gmail.com>
Date: Thu, 21 May 2026 09:58:03 +0530
Subject: [PATCH] @uppy: upgrade biome and more improvements (#6244)

- This PR upgrades `biome` from `2.0.5` -> `2.1.2` and adds two new
rules
-
[noUnusedImports](https://biomejs.dev/linter/rules/no-unused-private-class-members)
( we already had suppressions for this rule in code, but the rule itself
was never enabled in the config )
-
[noUnusedPrivateClassMembers](https://biomejs.dev/linter/rules/no-unused-private-class-members/)
- remove stale suppressions.
- remove stale code.

---------

Co-authored-by: Mikael Finstad <finstaden@gmail.com>
---
 biome.json                                    |  80 +++++----
 examples/aws-companion/index.html             |   2 +-
 examples/aws-nodejs/public/index.html         |   7 +-
 .../public/withCustomEndpoints.html           |   7 +-
 examples/aws-php/index.html                   |   2 +-
 examples/cdn/index.html                       |   6 +-
 examples/companion-custom-provider/index.html |   2 +-
 .../companion-digitalocean-spaces/index.html  |   2 +-
 examples/companion/client/index.html          |   4 +-
 examples/react/src/App.tsx                    |   2 +-
 .../src/components/CustomDropzone.svelte      |   8 +-
 .../src/components/ImageEditor.svelte         |  23 +--
 .../src/components/MediaCapture.svelte        |  11 +-
 .../src/components/RemoteSource.svelte        |   1 +
 .../components/test/props-reactivity.svelte   |   4 +-
 examples/transloadit/index.html               |   4 +-
 examples/transloadit/server.js                |   8 +-
 examples/vue/src/Dropzone.vue                 |   8 +-
 examples/vue/src/ImageEditor.vue              |  23 +--
 examples/vue/src/MediaCapture.vue             |  10 +-
 examples/xhr-bundle/index.html                |   2 +-
 examples/xhr-node/index.html                  |   2 +-
 examples/xhr-php/index.html                   |   2 +-
 examples/xhr-python/index.html                |   2 +-
 package.json                                  |   2 +-
 packages/@uppy/audio/src/Audio.tsx            |   4 +-
 .../aws-s3/src/HTTPCommunicationQueue.ts      |   6 +-
 .../@uppy/aws-s3/src/MultipartUploader.ts     |   1 +
 .../src/scripts/with-load-balancer.ts         |   4 +-
 .../@uppy/companion/src/server/Uploader.ts    |   6 +-
 .../src/server/provider/facebook/adapter.ts   |   2 +-
 .../@uppy/companion/src/types/express.d.ts    |   4 +-
 packages/@uppy/companion/src/types/shims.d.ts |   2 +-
 .../@uppy/companion/test/credentials.test.ts  |   2 +-
 .../@uppy/companion/test/providers.test.ts    |  29 ++--
 packages/@uppy/companion/test/url.test.ts     |  31 ++--
 packages/@uppy/compressor/src/index.ts        |   1 -
 packages/@uppy/core/src/Restricter.ts         |   4 +-
 packages/@uppy/core/src/Uppy.test.ts          | 163 +++++++++---------
 packages/@uppy/core/src/Uppy.ts               |   7 +-
 packages/@uppy/core/src/loggers.ts            |   2 +-
 packages/@uppy/dashboard/src/Dashboard.tsx    |  14 +-
 .../dashboard/src/components/AddFiles.tsx     |  22 +--
 .../src/components/AddFilesPanel.tsx          |   1 -
 .../dashboard/src/components/EditorPanel.tsx  |   1 -
 .../src/components/FileCard/index.tsx         |   1 -
 .../dashboard/src/components/FileList.tsx     |   1 -
 .../src/components/PickerPanelContent.tsx     |   1 -
 .../src/components/StatusBar/Components.tsx   |  16 +-
 packages/@uppy/dashboard/src/index.test.ts    |   3 -
 .../dashboard/src/utils/createSuperFocus.ts   |   1 -
 .../@uppy/dashboard/src/utils/trapFocus.ts    |   1 -
 packages/@uppy/form/src/index.ts              |   2 +-
 packages/@uppy/golden-retriever/src/index.ts  |   1 -
 packages/@uppy/locales/src/ar_SA.ts           |   4 +-
 packages/@uppy/locales/src/bg_BG.ts           |   4 +-
 packages/@uppy/locales/src/ca_ES.ts           |   4 +-
 packages/@uppy/locales/src/cs_CZ.ts           |   4 +-
 packages/@uppy/locales/src/da_DK.ts           |   4 +-
 packages/@uppy/locales/src/de_DE.ts           |   4 +-
 packages/@uppy/locales/src/el_GR.ts           |   4 +-
 packages/@uppy/locales/src/en_US.ts           |   4 +-
 packages/@uppy/locales/src/es_ES.ts           |   4 +-
 packages/@uppy/locales/src/es_MX.ts           |   4 +-
 packages/@uppy/locales/src/fa_IR.ts           |   4 +-
 packages/@uppy/locales/src/fi_FI.ts           |   4 +-
 packages/@uppy/locales/src/fr_FR.ts           |   4 +-
 packages/@uppy/locales/src/gl_ES.ts           |   4 +-
 packages/@uppy/locales/src/he_IL.ts           |   4 +-
 packages/@uppy/locales/src/hi_IN.ts           |   4 +-
 packages/@uppy/locales/src/hr_HR.ts           |   4 +-
 packages/@uppy/locales/src/hu_HU.ts           |   4 +-
 packages/@uppy/locales/src/id_ID.ts           |   4 +-
 packages/@uppy/locales/src/is_IS.ts           |   4 +-
 packages/@uppy/locales/src/it_IT.ts           |   4 +-
 packages/@uppy/locales/src/ja_JP.ts           |   4 +-
 packages/@uppy/locales/src/ko_KR.ts           |   4 +-
 packages/@uppy/locales/src/ms_MY.ts           |   4 +-
 packages/@uppy/locales/src/nb_NO.ts           |   4 +-
 packages/@uppy/locales/src/nl_NL.ts           |   4 +-
 packages/@uppy/locales/src/pl_PL.ts           |   4 +-
 packages/@uppy/locales/src/pt_BR.ts           |   4 +-
 packages/@uppy/locales/src/pt_PT.ts           |   4 +-
 packages/@uppy/locales/src/ro_RO.ts           |   4 +-
 packages/@uppy/locales/src/ru_RU.ts           |   4 +-
 packages/@uppy/locales/src/sk_SK.ts           |   4 +-
 packages/@uppy/locales/src/sr_RS_Cyrillic.ts  |   4 +-
 packages/@uppy/locales/src/sr_RS_Latin.ts     |   4 +-
 packages/@uppy/locales/src/sv_SE.ts           |   4 +-
 packages/@uppy/locales/src/th_TH.ts           |   4 +-
 packages/@uppy/locales/src/tr_TR.ts           |   4 +-
 packages/@uppy/locales/src/uk_UA.ts           |   4 +-
 packages/@uppy/locales/src/uz_UZ.ts           |   4 +-
 packages/@uppy/locales/src/vi_VN.ts           |   4 +-
 packages/@uppy/locales/src/zh_CN.ts           |   4 +-
 packages/@uppy/locales/src/zh_TW.ts           |   4 +-
 packages/@uppy/locales/template.ts            |   4 +-
 packages/@uppy/status-bar/src/Components.tsx  |  16 +-
 .../@uppy/thumbnail-generator/src/index.ts    |   2 +-
 packages/@uppy/transloadit/src/Assembly.ts    |   5 +-
 .../@uppy/transloadit/src/AssemblyWatcher.ts  |   1 +
 packages/@uppy/transloadit/src/index.ts       |  11 +-
 packages/@uppy/tus/src/index.ts               |   2 -
 packages/@uppy/utils/src/Translator.ts        |   5 +-
 packages/@uppy/webcam/src/Webcam.test.ts      |  14 +-
 packages/@uppy/webcam/src/Webcam.tsx          |   6 +-
 .../webcam/src/supportsMediaRecorder.test.ts  |   8 +-
 packages/@uppy/xhr-upload/src/index.ts        |   4 +-
 private/dev/dragdrop.html                     |   2 +-
 private/dev/index.html                        |   2 +-
 yarn.lock                                     |  74 ++++----
 111 files changed, 432 insertions(+), 449 deletions(-)

diff --git a/biome.json b/biome.json
index c8f42a2ec..13f580c8c 100644
--- a/biome.json
+++ b/biome.json
@@ -1,5 +1,5 @@
 {
-  "$schema": "https://biomejs.dev/schemas/2.0.5/schema.json",
+  "$schema": "https://biomejs.dev/schemas/2.4.15/schema.json",
   "vcs": {
     "enabled": true,
     "clientKind": "git",
@@ -14,10 +14,11 @@
       "bin/**",
       "e2e/**",
       "private/**",
-      "!packages/**/{dist,lib}/**",
+      "!packages/**/{dist,lib}",
       "!node_modules",
       "!.svelte-kit",
-      "!packages/@uppy/components/src/input.css"
+      "!packages/@uppy/components/src/input.css",
+      "!examples/angular/**/*.html"
     ]
   },
   "formatter": {
@@ -25,20 +26,11 @@
     "indentStyle": "space",
     "formatWithErrors": true
   },
+  "html": {
+    "experimentalFullSupportEnabled": true
+  },
   "linter": {
     "enabled": true,
-    "includes": [
-      "packages/**",
-      "examples/**",
-      "scripts/**",
-      "private/**",
-      "!packages/**/{dist,lib}/**",
-      "!node_modules",
-      "!.svelte-kit",
-      "!packages/@uppy/components/src/input.css",
-      "!**/*.vue",
-      "!**/*.svelte"
-    ],
     "rules": {
       "recommended": true,
       "suspicious": {
@@ -48,37 +40,26 @@
         "useExhaustiveDependencies": "error",
         "useHookAtTopLevel": "error",
         "noUnusedFunctionParameters": "off",
+        "noUnusedImports": "error",
+        "noUnusedPrivateClassMembers": "error",
         "noUnusedVariables": {
           "level": "error",
           "options": {
             "ignoreRestSiblings": true
           }
-        }
+        },
+        "noNestedComponentDefinitions": "error",
+        "noReactPropAssignments": "error"
       },
       "style": {
         "noNonNullAssertion": "off"
       },
       "a11y": {
-        "noSvgWithoutTitle": "off"
-      },
-      "nursery": {
-        "noNestedComponentDefinitions": "error",
-        "noReactPropAssign": "error"
+        "noSvgWithoutTitle": "off",
+        "useSemanticElements": "off"
       }
     }
   },
-  "overrides": [
-    {
-      "includes": ["packages/@uppy/companion/**"],
-      "linter": {
-        "rules": {
-          "complexity": {
-            "useLiteralKeys": "off"
-          }
-        }
-      }
-    }
-  ],
   "javascript": {
     "formatter": {
       "quoteStyle": "single",
@@ -92,5 +73,36 @@
         "organizeImports": "on"
       }
     }
-  }
+  },
+  "overrides": [
+    {
+      "includes": ["packages/@uppy/companion/**"],
+      "linter": {
+        "rules": {
+          "complexity": {
+            "useLiteralKeys": "off"
+          }
+        }
+      }
+    },
+    {
+      "includes": ["**/*.vue", "**/*.svelte", "packages/@uppy/vue/**/*.ts"],
+      "linter": {
+        "rules": {
+          "correctness": {
+            "useHookAtTopLevel": "off",
+            "useExhaustiveDependencies": "off"
+          }
+        }
+      }
+    },
+    {
+      "includes": ["examples/nextjs/**/*.css"],
+      "css": {
+        "parser": {
+          "tailwindDirectives": true
+        }
+      }
+    }
+  ]
 }
diff --git a/examples/aws-companion/index.html b/examples/aws-companion/index.html
index 0b86787b7..01eacb7a8 100644
--- a/examples/aws-companion/index.html
+++ b/examples/aws-companion/index.html
@@ -1,5 +1,5 @@
 <!doctype html>
-<html>
+<html lang="en">
   <head>
     <meta charset="utf-8" />
     <meta name="viewport" content="width=device-width, initial-scale=1" />
diff --git a/examples/aws-nodejs/public/index.html b/examples/aws-nodejs/public/index.html
index 881a07567..cd7d79f60 100644
--- a/examples/aws-nodejs/public/index.html
+++ b/examples/aws-nodejs/public/index.html
@@ -1,5 +1,5 @@
 <!doctype html>
-<html>
+<html lang="en">
   <head>
     <meta charset="utf-8" />
     <title>Uppy – AWS upload example</title>
@@ -24,7 +24,8 @@
     </footer>
     <noscript>You need JavaScript to run this example.</noscript>
     <script type="module">
-      import { Uppy, Dashboard, AwsS3 } from './uppy.min.mjs'
+      import { AwsS3, Dashboard, Uppy } from './uppy.min.mjs'
+
       function onUploadComplete(result) {
         console.log(
           'Upload complete! We’ve uploaded these files:',
@@ -34,7 +35,7 @@
       function onUploadSuccess(file, data) {
         console.log(
           'Upload success! We’ve uploaded this file:',
-          file.meta['name'],
+          file.meta.name,
         )
       }
       {
diff --git a/examples/aws-nodejs/public/withCustomEndpoints.html b/examples/aws-nodejs/public/withCustomEndpoints.html
index 2265a7bb7..e429e873d 100644
--- a/examples/aws-nodejs/public/withCustomEndpoints.html
+++ b/examples/aws-nodejs/public/withCustomEndpoints.html
@@ -1,5 +1,5 @@
 <!doctype html>
-<html>
+<html lang="en">
   <head>
     <meta charset="utf-8" />
     <title>Uppy – AWS upload example</title>
@@ -16,7 +16,8 @@
     </footer>
     <noscript>You need JavaScript to run this example.</noscript>
     <script type="module">
-      import { Uppy, Dashboard, AwsS3 } from './uppy.min.mjs'
+      import { AwsS3, Dashboard, Uppy } from './uppy.min.mjs'
+
       /**
        * This generator transforms a deep object into URL-encodable pairs
        * to work with `URLSearchParams` on the client and `body-parser` on the server.
@@ -258,7 +259,7 @@
         uppy.on('upload-success', (file, data) => {
           console.log(
             'Upload success! We’ve uploaded this file:',
-            file.meta['name'],
+            file.meta.name,
           )
         })
       }
diff --git a/examples/aws-php/index.html b/examples/aws-php/index.html
index d5728c3da..b6e5b196b 100644
--- a/examples/aws-php/index.html
+++ b/examples/aws-php/index.html
@@ -1,5 +1,5 @@
 <!doctype html>
-<html>
+<html lang="en">
   <head>
     <meta charset="utf-8" />
     <meta name="viewport" content="width=device-width, initial-scale=1" />
diff --git a/examples/cdn/index.html b/examples/cdn/index.html
index 5f66f2087..6a50ef3ba 100644
--- a/examples/cdn/index.html
+++ b/examples/cdn/index.html
@@ -11,14 +11,14 @@
   </head>
   <body>
     <noscript>You need JavaScript enabled for this example to work.</noscript>
-    <button id="uppyModalOpener">Open Modal</button>
+    <button type="button" id="uppyModalOpener">Open Modal</button>
 
     <script type="module">
       import {
-        Uppy,
         Dashboard,
-        Webcam,
         Tus,
+        Uppy,
+        Webcam,
       } from 'https://releases.transloadit.com/uppy/v4.18.0/uppy.min.mjs'
 
       const uppy = new Uppy({ debug: true, autoProceed: false })
diff --git a/examples/companion-custom-provider/index.html b/examples/companion-custom-provider/index.html
index 7dcb517d1..d489fa103 100644
--- a/examples/companion-custom-provider/index.html
+++ b/examples/companion-custom-provider/index.html
@@ -1,5 +1,5 @@
 <!doctype html>
-<html>
+<html lang="en">
   <head>
     <meta charset="utf-8" />
     <meta name="viewport" content="width=device-width, initial-scale=1" />
diff --git a/examples/companion-digitalocean-spaces/index.html b/examples/companion-digitalocean-spaces/index.html
index 5a1e301c2..8f6c85a8b 100644
--- a/examples/companion-digitalocean-spaces/index.html
+++ b/examples/companion-digitalocean-spaces/index.html
@@ -1,5 +1,5 @@
 <!doctype html>
-<html>
+<html lang="en">
   <head>
     <meta charset="utf-8" />
     <meta name="viewport" content="width=device-width, initial-scale=1" />
diff --git a/examples/companion/client/index.html b/examples/companion/client/index.html
index 64d93e91c..2fbd4404e 100644
--- a/examples/companion/client/index.html
+++ b/examples/companion/client/index.html
@@ -10,14 +10,14 @@
     />
   </head>
   <body>
-    <button id="uppyModalOpener">Open Modal</button>
+    <button type="button" id="uppyModalOpener">Open Modal</button>
     <noscript>This web page requires JavaScript to work properly.</noscript>
     <script type="module">
       import {
-        Uppy,
         Dashboard,
         GoogleDrive,
         Tus,
+        Uppy,
       } from 'https://releases.transloadit.com/uppy/v4.18.0/uppy.min.mjs'
 
       const uppy = new Uppy({ debug: true, autoProceed: false })
diff --git a/examples/react/src/App.tsx b/examples/react/src/App.tsx
index f5744c290..a6a9b600c 100644
--- a/examples/react/src/App.tsx
+++ b/examples/react/src/App.tsx
@@ -1,4 +1,4 @@
-/** biome-ignore-all lint/nursery/useUniqueElementIds: it's fine */
+/** biome-ignore-all lint/correctness/useUniqueElementIds: it's fine */
 import Uppy, { type UppyFile } from '@uppy/core'
 import UppyImageEditor from '@uppy/image-editor'
 import {
diff --git a/examples/sveltekit/src/components/CustomDropzone.svelte b/examples/sveltekit/src/components/CustomDropzone.svelte
index 75de4d9e3..9678beab1 100644
--- a/examples/sveltekit/src/components/CustomDropzone.svelte
+++ b/examples/sveltekit/src/components/CustomDropzone.svelte
@@ -20,7 +20,7 @@ const { getButtonProps, getInputProps: getFileInputProps } = useFileInput()
   >
     <div class="flex items-center justify-center gap-4">
       <input {...getFileInputProps()} class="hidden" />
-      <button
+      <button type="button"
         {...getButtonProps()}
         class="hover:bg-gray-100 transition-colors p-2 rounded-md flex flex-col items-center gap-2 text-sm"
       >
@@ -30,7 +30,7 @@ const { getButtonProps, getInputProps: getFileInputProps } = useFileInput()
         Device
       </button>
 
-      <button
+      <button type="button"
         onclick={() => openModal('webcam')}
         class="hover:bg-gray-100 transition-colors p-2 rounded-md flex flex-col items-center gap-2 text-sm"
       >
@@ -40,7 +40,7 @@ const { getButtonProps, getInputProps: getFileInputProps } = useFileInput()
         Webcam
       </button>
 
-      <button
+      <button type="button"
         onclick={() => openModal('screen-capture')}
         class="hover:bg-gray-100 transition-colors p-2 rounded-md flex flex-col items-center gap-2 text-sm"
       >
@@ -50,7 +50,7 @@ const { getButtonProps, getInputProps: getFileInputProps } = useFileInput()
         Screen Capture
       </button>
 
-      <button
+      <button type="button"
         onclick={() => openModal('dropbox')}
         class="hover:bg-gray-100 transition-colors p-2 rounded-md flex flex-col items-center gap-2 text-sm"
       >
diff --git a/examples/sveltekit/src/components/ImageEditor.svelte b/examples/sveltekit/src/components/ImageEditor.svelte
index 6d9bfef55..9aab51b36 100644
--- a/examples/sveltekit/src/components/ImageEditor.svelte
+++ b/examples/sveltekit/src/components/ImageEditor.svelte
@@ -24,6 +24,7 @@ const editor = useImageEditor({ file })
   </div>
 
   <div class="mb-4">
+    <!-- biome-ignore lint/a11y/useAltText: alt is provided via editor.getImageProps() spread -->
     <img
       class="w-full max-h-[400px] rounded-lg border-2"
       {...editor.getImageProps()}
@@ -41,31 +42,31 @@ const editor = useImageEditor({ file })
   </div>
 
   <div class="flex gap-2 flex-wrap mb-4">
-    <button
+    <button type="button"
       class="bg-gray-200 px-3 py-1 rounded disabled:opacity-50"
       {...editor.getRotateButtonProps(-90)}
     >
       ↶ -90°
     </button>
-    <button
+    <button type="button"
       class="bg-gray-200 px-3 py-1 rounded disabled:opacity-50"
       {...editor.getRotateButtonProps(90)}
     >
       ↷ +90°
     </button>
-    <button
+    <button type="button"
       class="bg-gray-200 px-3 py-1 rounded disabled:opacity-50"
       {...editor.getFlipHorizontalButtonProps()}
     >
       ⇆ Flip
     </button>
-    <button
+    <button type="button"
       class="bg-gray-200 px-3 py-1 rounded disabled:opacity-50"
       {...editor.getZoomButtonProps(0.1)}
     >
       + Zoom
     </button>
-    <button
+    <button type="button"
       class="bg-gray-200 px-3 py-1 rounded disabled:opacity-50"
       {...editor.getZoomButtonProps(-0.1)}
     >
@@ -74,25 +75,25 @@ const editor = useImageEditor({ file })
   </div>
 
   <div class="flex gap-2 flex-wrap mb-4">
-    <button
+    <button type="button"
       class="bg-gray-200 px-3 py-1 rounded disabled:opacity-50"
       {...editor.getCropSquareButtonProps()}
     >
       1:1
     </button>
-    <button
+    <button type="button"
       class="bg-gray-200 px-3 py-1 rounded disabled:opacity-50"
       {...editor.getCropLandscapeButtonProps()}
     >
       16:9
     </button>
-    <button
+    <button type="button"
       class="bg-gray-200 px-3 py-1 rounded disabled:opacity-50"
       {...editor.getCropPortraitButtonProps()}
     >
       9:16
     </button>
-    <button
+    <button type="button"
       class="bg-gray-200 px-3 py-1 rounded disabled:opacity-50"
       {...editor.getResetButtonProps()}
     >
@@ -101,13 +102,13 @@ const editor = useImageEditor({ file })
   </div>
 
   <div class="flex gap-4 justify-end">
-    <button
+    <button type="button"
       class="bg-gray-500 text-white px-4 py-2 rounded-md"
       {...editor.getCancelButtonProps({ onClick: close })}
     >
       Cancel
     </button>
-    <button
+    <button type="button"
       class="bg-green-500 text-white px-4 py-2 rounded-md disabled:opacity-50 disabled:bg-green-300"
       {...editor.getSaveButtonProps({ onClick: close })}
     >
diff --git a/examples/sveltekit/src/components/MediaCapture.svelte b/examples/sveltekit/src/components/MediaCapture.svelte
index cb68b6391..148043e58 100644
--- a/examples/sveltekit/src/components/MediaCapture.svelte
+++ b/examples/sveltekit/src/components/MediaCapture.svelte
@@ -42,36 +42,37 @@ const {
       <p>{mediaError.message ? `Camera error: ${mediaError.message}` : 'An unknown camera error occurred.'}</p>
     </div>
   {/if}
+  <!-- biome-ignore lint/a11y/useMediaCaption: live camera preview does not require captions -->
   <video
     class="border-2 w-full rounded-lg data-[uppy-mirrored=true]:scale-x-[-1]"
     {...videoProps}
   ></video>
   <div class="flex gap-4 flex-wrap mt-4">
-    <button
+    <button type="button"
       class="bg-blue-500 text-white px-4 py-2 rounded-md disabled:opacity-50 disabled:bg-blue-300"
       {...primaryActionButtonProps}
     >
       {primaryActionButtonLabel}
     </button>
-    <button
+    <button type="button"
       class="bg-blue-500 text-white px-4 py-2 rounded-md disabled:opacity-50 disabled:bg-blue-300"
       {...recordButtonProps}
     >
       Record
     </button>
-    <button
+    <button type="button"
       class="bg-red-500 text-white px-4 py-2 rounded-md disabled:opacity-50 disabled:bg-red-300"
       {...stopRecordingButtonProps}
     >
       Stop
     </button>
-    <button
+    <button type="button"
       class="bg-green-500 text-white px-4 py-2 rounded-md disabled:opacity-50 disabled:bg-green-300"
       {...submitButtonProps}
     >
       Submit
     </button>
-    <button
+    <button type="button"
       class="bg-gray-500 text-white px-4 py-2 rounded-md disabled:opacity-50 disabled:bg-gray-300"
       {...discardButtonProps}
     >
diff --git a/examples/sveltekit/src/components/RemoteSource.svelte b/examples/sveltekit/src/components/RemoteSource.svelte
index cc151800e..2079bf5d7 100644
--- a/examples/sveltekit/src/components/RemoteSource.svelte
+++ b/examples/sveltekit/src/components/RemoteSource.svelte
@@ -18,6 +18,7 @@ const dtf = new Intl.DateTimeFormat('en-US', {
   timeStyle: 'short',
 })
 
+// biome-ignore lint/correctness/noUnusedVariables: used as a Svelte action via use:setFolderCheckboxIndeterminate
 function setFolderCheckboxIndeterminate(
   node: HTMLInputElement,
   item: PartialTreeFolderNode,
diff --git a/examples/sveltekit/src/components/test/props-reactivity.svelte b/examples/sveltekit/src/components/test/props-reactivity.svelte
index ea4847214..1eb52a444 100644
--- a/examples/sveltekit/src/components/test/props-reactivity.svelte
+++ b/examples/sveltekit/src/components/test/props-reactivity.svelte
@@ -14,9 +14,9 @@ let hideUploadButton = false
 </script>
 
 <main class="p-5 max-w-xl mx-auto">
-  <button onclick={() => (disabled = !disabled)}>Toggle dashboard</button>
+  <button type="button" onclick={() => (disabled = !disabled)}>Toggle dashboard</button>
   <Dashboard props={{disabled: disabled}} uppy={uppy} />
-  <button onclick={() => (hideUploadButton = !hideUploadButton)}>Toggle statusbar</button>
+  <button type="button" onclick={() => (hideUploadButton = !hideUploadButton)}>Toggle statusbar</button>
   <div id="statusbar-container">
     <StatusBar props={{ hideUploadButton }} uppy={uppy} />
   </div>
diff --git a/examples/transloadit/index.html b/examples/transloadit/index.html
index a3919ae1f..a9e0b9c1f 100644
--- a/examples/transloadit/index.html
+++ b/examples/transloadit/index.html
@@ -1,5 +1,5 @@
 <!doctype html>
-<html>
+<html lang="en">
   <head>
     <meta charset="utf-8" />
     <meta name="viewport" content="width=device-width, initial-scale=1" />
@@ -140,7 +140,7 @@
         This API is a one-shot upload UI using a modal overlay. Call the
         function and receive a listen to an event with upload results ✌️
       </p>
-      <button onclick="openModal()">Open</button>
+      <button type="button" onclick="openModal()">Open</button>
 
       <h2>uppy.upload()</h2>
       <p>An &lt;input type=file&gt; backed by <code>uppy.upload()</code>:</p>
diff --git a/examples/transloadit/server.js b/examples/transloadit/server.js
index 765301bd5..c71994b0e 100755
--- a/examples/transloadit/server.js
+++ b/examples/transloadit/server.js
@@ -36,7 +36,7 @@ function Footer() {
 }
 
 function FormFields(fields) {
-  // biome-ignore lint/nursery/noNestedComponentDefinitions: not a react component
+  // biome-ignore lint/correctness/noNestedComponentDefinitions: not a react component
   function Field([name, value]) {
     if (name === 'transloadit') return ''
     let isValueJSON = false
@@ -76,7 +76,7 @@ function FormFields(fields) {
 }
 
 function UploadsList(uploads) {
-  // biome-ignore lint/nursery/noNestedComponentDefinitions: not a react component
+  // biome-ignore lint/correctness/noNestedComponentDefinitions: not a react component
   function Upload(upload) {
     return `<li>${e(upload.name)}</li>`
   }
@@ -89,12 +89,12 @@ function UploadsList(uploads) {
 }
 
 function ResultsList(results) {
-  // biome-ignore lint/nursery/noNestedComponentDefinitions: not a react component
+  // biome-ignore lint/correctness/noNestedComponentDefinitions: not a react component
   function Result(result) {
     return `<li>${e(result.name)} <a href="${result.ssl_url}" target="_blank">View</a></li>`
   }
 
-  // biome-ignore lint/nursery/noNestedComponentDefinitions: not a react component
+  // biome-ignore lint/correctness/noNestedComponentDefinitions: not a react component
   function ResultsSection(stepName) {
     return `
     <h2>${e(stepName)}</h2>
diff --git a/examples/vue/src/Dropzone.vue b/examples/vue/src/Dropzone.vue
index c36d0a9a9..4bb75fd80 100644
--- a/examples/vue/src/Dropzone.vue
+++ b/examples/vue/src/Dropzone.vue
@@ -7,7 +7,7 @@
   >
     <div class="flex items-center justify-center gap-4">
       <input v-bind="getFileInputProps()" class="hidden" />
-      <button
+      <button type="button"
         v-bind="getButtonProps()"
         class="hover:bg-gray-100 transition-colors p-2 rounded-md flex flex-col items-center gap-2 text-sm"
       >
@@ -17,7 +17,7 @@
         Device
       </button>
 
-      <button
+      <button type="button"
         @click="() => props.openModal('webcam')"
         class="hover:bg-gray-100 transition-colors p-2 rounded-md flex flex-col items-center gap-2 text-sm"
       >
@@ -27,7 +27,7 @@
         Webcam
       </button>
 
-      <button
+      <button type="button"
         @click="() => props.openModal('screen-capture')"
         class="hover:bg-gray-100 transition-colors p-2 rounded-md flex flex-col items-center gap-2 text-sm"
       >
@@ -37,7 +37,7 @@
         Screen Capture
       </button>
 
-      <button
+      <button type="button"
         @click="() => props.openModal('dropbox')"
         class="hover:bg-gray-100 transition-colors p-2 rounded-md flex flex-col items-center gap-2 text-sm"
       >
diff --git a/examples/vue/src/ImageEditor.vue b/examples/vue/src/ImageEditor.vue
index e285826f5..7f4fb24bb 100644
--- a/examples/vue/src/ImageEditor.vue
+++ b/examples/vue/src/ImageEditor.vue
@@ -12,6 +12,7 @@
     </div>
 
     <div class="mb-4">
+      <!-- biome-ignore lint/a11y/useAltText: alt is provided via editor.getImageProps() spread -->
       <img
         class="w-full max-h-[400px] rounded-lg border-2"
         v-bind="editor.getImageProps()"
@@ -29,31 +30,31 @@
     </div>
 
     <div class="flex gap-2 flex-wrap mb-4">
-      <button
+      <button type="button"
         class="bg-gray-200 px-3 py-1 rounded disabled:opacity-50"
         v-bind="editor.getRotateButtonProps(-90)"
       >
         ↶ -90°
       </button>
-      <button
+      <button type="button"
         class="bg-gray-200 px-3 py-1 rounded disabled:opacity-50"
         v-bind="editor.getRotateButtonProps(90)"
       >
         ↷ +90°
       </button>
-      <button
+      <button type="button"
         class="bg-gray-200 px-3 py-1 rounded disabled:opacity-50"
         v-bind="editor.getFlipHorizontalButtonProps()"
       >
         ⇆ Flip
       </button>
-      <button
+      <button type="button"
         class="bg-gray-200 px-3 py-1 rounded disabled:opacity-50"
         v-bind="editor.getZoomButtonProps(0.1)"
       >
         + Zoom
       </button>
-      <button
+      <button type="button"
         class="bg-gray-200 px-3 py-1 rounded disabled:opacity-50"
         v-bind="editor.getZoomButtonProps(-0.1)"
       >
@@ -62,25 +63,25 @@
     </div>
 
     <div class="flex gap-2 flex-wrap mb-4">
-      <button
+      <button type="button"
         class="bg-gray-200 px-3 py-1 rounded disabled:opacity-50"
         v-bind="editor.getCropSquareButtonProps()"
       >
         1:1
       </button>
-      <button
+      <button type="button"
         class="bg-gray-200 px-3 py-1 rounded disabled:opacity-50"
         v-bind="editor.getCropLandscapeButtonProps()"
       >
         16:9
       </button>
-      <button
+      <button type="button"
         class="bg-gray-200 px-3 py-1 rounded disabled:opacity-50"
         v-bind="editor.getCropPortraitButtonProps()"
       >
         9:16
       </button>
-      <button
+      <button type="button"
         class="bg-gray-200 px-3 py-1 rounded disabled:opacity-50"
         v-bind="editor.getResetButtonProps()"
       >
@@ -89,13 +90,13 @@
     </div>
 
     <div class="flex gap-4 justify-end">
-      <button
+      <button type="button"
         class="bg-gray-500 text-white px-4 py-2 rounded-md"
         v-bind="editor.getCancelButtonProps({ onClick: close })"
       >
         Cancel
       </button>
-      <button
+      <button type="button"
         class="bg-green-500 text-white px-4 py-2 rounded-md disabled:opacity-50 disabled:bg-green-300"
         v-bind="editor.getSaveButtonProps({ onClick: close })"
       >
diff --git a/examples/vue/src/MediaCapture.vue b/examples/vue/src/MediaCapture.vue
index 1970cde5e..8d0801d67 100644
--- a/examples/vue/src/MediaCapture.vue
+++ b/examples/vue/src/MediaCapture.vue
@@ -24,31 +24,31 @@
       <track kind="captions" />
     </video>
     <div class="flex gap-4 flex-wrap mt-4">
-      <button
+      <button type="button"
         class="bg-blue-500 text-white px-4 py-2 rounded-md disabled:opacity-50 disabled:bg-blue-300"
         v-bind="primaryActionButtonProps"
       >
         {{ primaryActionButtonLabel }}
       </button>
-      <button
+      <button type="button"
         class="bg-blue-500 text-white px-4 py-2 rounded-md disabled:opacity-50 disabled:bg-blue-300"
         v-bind="recordButtonProps"
       >
         Record
       </button>
-      <button
+      <button type="button"
         class="bg-red-500 text-white px-4 py-2 rounded-md disabled:opacity-50 disabled:bg-red-300"
         v-bind="stopRecordingButtonProps"
       >
         Stop
       </button>
-      <button
+      <button type="button"
         class="bg-green-500 text-white px-4 py-2 rounded-md disabled:opacity-50 disabled:bg-green-300"
         v-bind="submitButtonProps"
       >
         Submit
       </button>
-      <button
+      <button type="button"
         class="bg-gray-500 text-white px-4 py-2 rounded-md disabled:opacity-50 disabled:bg-gray-300"
         v-bind="discardButtonProps"
       >
diff --git a/examples/xhr-bundle/index.html b/examples/xhr-bundle/index.html
index e731b462c..fd6c539c9 100644
--- a/examples/xhr-bundle/index.html
+++ b/examples/xhr-bundle/index.html
@@ -1,5 +1,5 @@
 <!doctype html>
-<html>
+<html lang="en">
   <head>
     <meta charset="utf-8" />
     <meta name="viewport" content="width=device-width, initial-scale=1" />
diff --git a/examples/xhr-node/index.html b/examples/xhr-node/index.html
index 54b683f26..32dd1d254 100644
--- a/examples/xhr-node/index.html
+++ b/examples/xhr-node/index.html
@@ -1,5 +1,5 @@
 <!doctype html>
-<html>
+<html lang="en">
   <head>
     <meta charset="utf-8" />
     <meta name="viewport" content="width=device-width, initial-scale=1" />
diff --git a/examples/xhr-php/index.html b/examples/xhr-php/index.html
index e1e3db298..efbdba848 100644
--- a/examples/xhr-php/index.html
+++ b/examples/xhr-php/index.html
@@ -1,5 +1,5 @@
 <!doctype html>
-<html>
+<html lang="en">
   <head>
     <meta charset="utf-8" />
     <meta name="viewport" content="width=device-width, initial-scale=1" />
diff --git a/examples/xhr-python/index.html b/examples/xhr-python/index.html
index 65bdb392a..38239523d 100644
--- a/examples/xhr-python/index.html
+++ b/examples/xhr-python/index.html
@@ -1,5 +1,5 @@
 <!doctype html>
-<html>
+<html lang="en">
   <head>
     <meta charset="utf-8" />
     <meta name="viewport" content="width=device-width, initial-scale=1" />
diff --git a/package.json b/package.json
index 19499e50c..c0e8c392b 100644
--- a/package.json
+++ b/package.json
@@ -29,7 +29,7 @@
     "release": "changeset publish"
   },
   "devDependencies": {
-    "@biomejs/biome": "2.0.5",
+    "@biomejs/biome": "2.4.15",
     "@changesets/changelog-github": "^0.5.1",
     "@changesets/cli": "patch:@changesets/cli@npm%3A2.29.5#~/.yarn/patches/@changesets-cli-npm-2.29.5-68d8030bf3.patch",
     "npm-run-all": "^4.1.5",
diff --git a/packages/@uppy/audio/src/Audio.tsx b/packages/@uppy/audio/src/Audio.tsx
index f998c9ef0..2f53a8cc8 100644
--- a/packages/@uppy/audio/src/Audio.tsx
+++ b/packages/@uppy/audio/src/Audio.tsx
@@ -284,7 +284,9 @@ export default class Audio<M extends Meta, B extends Body> extends UIPlugin<
   #stop = async () => {
     if (this.#stream) {
       const audioTracks = this.#stream.getAudioTracks()
-      audioTracks.forEach((track) => track.stop())
+      audioTracks.forEach((track) => {
+        track.stop()
+      })
     }
 
     if (this.#recorder) {
diff --git a/packages/@uppy/aws-s3/src/HTTPCommunicationQueue.ts b/packages/@uppy/aws-s3/src/HTTPCommunicationQueue.ts
index 43a30ab53..38e800fad 100644
--- a/packages/@uppy/aws-s3/src/HTTPCommunicationQueue.ts
+++ b/packages/@uppy/aws-s3/src/HTTPCommunicationQueue.ts
@@ -263,9 +263,9 @@ export class HTTPCommunicationQueue<M extends Meta, B extends Body> {
     const data = chunk.getData()
     if (method.toUpperCase() === 'POST') {
       const formData = new FormData()
-      Object.entries(fields!).forEach(([key, value]) =>
-        formData.set(key, value),
-      )
+      Object.entries(fields!).forEach(([key, value]) => {
+        formData.set(key, value)
+      })
       formData.set('file', data)
       body = formData
     } else {
diff --git a/packages/@uppy/aws-s3/src/MultipartUploader.ts b/packages/@uppy/aws-s3/src/MultipartUploader.ts
index c2884f62b..1e590e0c8 100644
--- a/packages/@uppy/aws-s3/src/MultipartUploader.ts
+++ b/packages/@uppy/aws-s3/src/MultipartUploader.ts
@@ -256,6 +256,7 @@ class MultipartUploader<M extends Meta, B extends Body> {
     else this.pause()
   }
 
+  // biome-ignore lint/correctness/noUnusedPrivateClassMembers: accessed via Symbol in tests
   private [Symbol.for('uppy test: getChunkState')]() {
     return this.#chunkState
   }
diff --git a/packages/@uppy/companion/src/scripts/with-load-balancer.ts b/packages/@uppy/companion/src/scripts/with-load-balancer.ts
index 1932b7a08..02fa0d31d 100644
--- a/packages/@uppy/companion/src/scripts/with-load-balancer.ts
+++ b/packages/@uppy/companion/src/scripts/with-load-balancer.ts
@@ -110,5 +110,7 @@ try {
   await Promise.all(companions)
 } finally {
   loadBalancer?.close()
-  companions.forEach((companion) => companion.kill())
+  companions.forEach((companion) => {
+    companion.kill()
+  })
 }
diff --git a/packages/@uppy/companion/src/server/Uploader.ts b/packages/@uppy/companion/src/server/Uploader.ts
index b564cdafa..fb4e3cea7 100644
--- a/packages/@uppy/companion/src/server/Uploader.ts
+++ b/packages/@uppy/companion/src/server/Uploader.ts
@@ -806,9 +806,9 @@ export default class Uploader {
     if (this.options.useFormData) {
       const formData = new FormData()
 
-      Object.entries(this.metadata).forEach(([key, value]) =>
-        formData.append(key, value),
-      )
+      Object.entries(this.metadata).forEach(([key, value]) => {
+        formData.append(key, value)
+      })
 
       // see https://github.com/octet-stream/form-data/blob/73a5a24e635938026538673f94cbae1249a3f5cc/readme.md?plain=1#L232
       formData.set(this.fieldname, {
diff --git a/packages/@uppy/companion/src/server/provider/facebook/adapter.ts b/packages/@uppy/companion/src/server/provider/facebook/adapter.ts
index 97c5084cf..54a811738 100644
--- a/packages/@uppy/companion/src/server/provider/facebook/adapter.ts
+++ b/packages/@uppy/companion/src/server/provider/facebook/adapter.ts
@@ -76,7 +76,7 @@ const getNextPagePath = (
   currentQuery: Record<string, string>,
   currentPath: string | undefined,
 ): string | null => {
-  if (!data.paging || !data.paging.cursors) {
+  if (!data.paging?.cursors) {
     return null
   }
 
diff --git a/packages/@uppy/companion/src/types/express.d.ts b/packages/@uppy/companion/src/types/express.d.ts
index 0180663e8..be6d83c15 100644
--- a/packages/@uppy/companion/src/types/express.d.ts
+++ b/packages/@uppy/companion/src/types/express.d.ts
@@ -1,7 +1,7 @@
 import type { S3Client } from '@aws-sdk/client-s3'
-import type { CompanionRuntimeOptions } from './companion-options.js'
-import type Provider from '../server/provider/Provider.js'
 import { CredentialsFetchResponse } from '../schemas/companion.js'
+import type Provider from '../server/provider/Provider.js'
+import type { CompanionRuntimeOptions } from './companion-options.js'
 
 export type BuildUrl = (
   subPath: string,
diff --git a/packages/@uppy/companion/src/types/shims.d.ts b/packages/@uppy/companion/src/types/shims.d.ts
index 5c8a3cbbf..df9f8d998 100644
--- a/packages/@uppy/companion/src/types/shims.d.ts
+++ b/packages/@uppy/companion/src/types/shims.d.ts
@@ -1,5 +1,5 @@
 declare module 'express-interceptor' {
-  import type { Request, Response, RequestHandler } from 'express'
+  import type { Request, RequestHandler, Response } from 'express'
 
   type InterceptorConfig = {
     isInterceptable: () => boolean
diff --git a/packages/@uppy/companion/test/credentials.test.ts b/packages/@uppy/companion/test/credentials.test.ts
index 71a72a3c3..8129ed430 100644
--- a/packages/@uppy/companion/test/credentials.test.ts
+++ b/packages/@uppy/companion/test/credentials.test.ts
@@ -41,7 +41,7 @@ describe('providers requests with remote oauth keys', () => {
     // mocking request module used to fetch custom oauth credentials
     nock('http://localhost:2111')
       .post('/zoom-keys')
-      // @ts-ignore
+      // @ts-expect-error
       .reply((uri, { provider, parameters }) => {
         if (provider !== 'zoom' || parameters !== 'ZOOM-CREDENTIALS-PARAMS')
           return [400]
diff --git a/packages/@uppy/companion/test/providers.test.ts b/packages/@uppy/companion/test/providers.test.ts
index b9d8f9288..9e1266f68 100644
--- a/packages/@uppy/companion/test/providers.test.ts
+++ b/packages/@uppy/companion/test/providers.test.ts
@@ -489,23 +489,22 @@ describe('provider file gets downloaded from', () => {
 })
 
 describe('connect to provider', () => {
-  test.each(providerNames)(
-    'connect to %s via grant.js endpoint',
-    async (providerName: string) => {
-      const oauthProvider = oauthProviders[providerName]
+  test.each(
+    providerNames,
+  )('connect to %s via grant.js endpoint', async (providerName: string) => {
+    const oauthProvider = oauthProviders[providerName]
 
-      if (oauthProvider == null) return
+    if (oauthProvider == null) return
 
-      await request(await getServerWithEnv())
-        .get(`/${providerName}/connect?foo=bar`)
-        .set('uppy-auth-token', token)
-        .expect(302)
-        .expect(
-          'Location',
-          `http://localhost:3020/connect/${oauthProvider}?state=${OAUTH_STATE}`,
-        )
-    },
-  )
+    await request(await getServerWithEnv())
+      .get(`/${providerName}/connect?foo=bar`)
+      .set('uppy-auth-token', token)
+      .expect(302)
+      .expect(
+        'Location',
+        `http://localhost:3020/connect/${oauthProvider}?state=${OAUTH_STATE}`,
+      )
+  })
 })
 
 describe('logout of provider', () => {
diff --git a/packages/@uppy/companion/test/url.test.ts b/packages/@uppy/companion/test/url.test.ts
index dfcbc1864..214e56c37 100644
--- a/packages/@uppy/companion/test/url.test.ts
+++ b/packages/@uppy/companion/test/url.test.ts
@@ -82,21 +82,20 @@ describe('url get', () => {
       .then((res) => expect(res.body.token).toBeTruthy())
   })
 
-  test.each(invalids)(
-    'downloads are not instantiated for invalid urls',
-    async (urlCase) => {
-      nockUrl()
+  test.each(
+    invalids,
+  )('downloads are not instantiated for invalid urls', async (urlCase) => {
+    nockUrl()
 
-      return request(await getMockServer())
-        .post('/url/get')
-        .set('Content-Type', 'application/json')
-        .send({
-          url: urlCase,
-          endpoint: 'http://tusd.tusdemo.net/files',
-          protocol: 'tus',
-        })
-        .expect(400)
-        .then((res) => expect(res.body.error).toBe('Invalid request body'))
-    },
-  )
+    return request(await getMockServer())
+      .post('/url/get')
+      .set('Content-Type', 'application/json')
+      .send({
+        url: urlCase,
+        endpoint: 'http://tusd.tusdemo.net/files',
+        protocol: 'tus',
+      })
+      .expect(400)
+      .then((res) => expect(res.body.error).toBe('Invalid request body'))
+  })
 })
diff --git a/packages/@uppy/compressor/src/index.ts b/packages/@uppy/compressor/src/index.ts
index c1951e7b1..7fe262b72 100644
--- a/packages/@uppy/compressor/src/index.ts
+++ b/packages/@uppy/compressor/src/index.ts
@@ -2,7 +2,6 @@ import prettierBytes from '@transloadit/prettier-bytes'
 import type { DefinePluginOpts, PluginOpts } from '@uppy/core'
 import { BasePlugin, type Uppy } from '@uppy/core'
 import type { Body, LocalUppyFile, Meta, UppyFile } from '@uppy/utils'
-// @ts-ignore
 import { getFileNameAndExtension, RateLimitedQueue } from '@uppy/utils'
 import CompressorJS from 'compressorjs'
 import locale from './locale.js'
diff --git a/packages/@uppy/core/src/Restricter.ts b/packages/@uppy/core/src/Restricter.ts
index 101c1d035..0a009c5fe 100644
--- a/packages/@uppy/core/src/Restricter.ts
+++ b/packages/@uppy/core/src/Restricter.ts
@@ -1,6 +1,6 @@
 import prettierBytes from '@transloadit/prettier-bytes'
 import type { Body, I18n, Meta, UppyFile } from '@uppy/utils'
-// @ts-ignore untyped
+// @ts-expect-error untyped
 import match from 'mime-match'
 import type { NonNullableUppyOptions, State } from './Uppy.js'
 
@@ -206,4 +206,4 @@ class Restricter<M extends Meta, B extends Body> {
   }
 }
 
-export { Restricter, defaultOptions, RestrictionError }
+export { defaultOptions, Restricter, RestrictionError }
diff --git a/packages/@uppy/core/src/Uppy.test.ts b/packages/@uppy/core/src/Uppy.test.ts
index 1c52017bd..9ec252d1c 100644
--- a/packages/@uppy/core/src/Uppy.test.ts
+++ b/packages/@uppy/core/src/Uppy.test.ts
@@ -173,26 +173,26 @@ describe('src/Core', () => {
       core.use(AcquirerPlugin1)
       core.use(AcquirerPlugin2)
       core.iteratePlugins((plugin) => {
-        // @ts-ignore
+        // @ts-expect-error
         plugin.run('hello')
       })
       expect(
-        // @ts-ignore
+        // @ts-expect-error
         core[Symbol.for('uppy test: getPlugins')]('acquirer')[0].mocks.run.mock
           .calls.length,
       ).toEqual(1)
       expect(
-        // @ts-ignore
+        // @ts-expect-error
         core[Symbol.for('uppy test: getPlugins')]('acquirer')[0].mocks.run.mock
           .calls[0],
       ).toEqual(['hello'])
       expect(
-        // @ts-ignore
+        // @ts-expect-error
         core[Symbol.for('uppy test: getPlugins')]('acquirer')[1].mocks.run.mock
           .calls.length,
       ).toEqual(1)
       expect(
-        // @ts-ignore
+        // @ts-expect-error
         core[Symbol.for('uppy test: getPlugins')]('acquirer')[1].mocks.run.mock
           .calls[0],
       ).toEqual(['hello'])
@@ -203,7 +203,7 @@ describe('src/Core', () => {
       core.use(AcquirerPlugin1)
       core.use(AcquirerPlugin2)
       expect(
-        // @ts-ignore
+        // @ts-expect-error
         Object.keys(core[Symbol.for('uppy test: getPlugins')]('acquirer'))
           .length,
       ).toEqual(2)
@@ -211,14 +211,14 @@ describe('src/Core', () => {
       const plugin = core.getPlugin('TestSelector1')
       core.removePlugin(plugin!)
       expect(
-        // @ts-ignore
+        // @ts-expect-error
         Object.keys(core[Symbol.for('uppy test: getPlugins')]('acquirer'))
           .length,
       ).toEqual(1)
-      // @ts-ignore
+      // @ts-expect-error
       expect(plugin.mocks.uninstall.mock.calls.length).toEqual(1)
       expect(
-        // @ts-ignore
+        // @ts-expect-error
         core[Symbol.for('uppy test: getPlugins')]('acquirer')[0].mocks.run.mock
           .calls.length,
       ).toEqual(0)
@@ -232,22 +232,22 @@ describe('src/Core', () => {
       core.use(AcquirerPlugin2)
       core.updateAll({ foo: 'bar' })
       expect(
-        // @ts-ignore
+        // @ts-expect-error
         core[Symbol.for('uppy test: getPlugins')]('acquirer')[0].mocks.update
           .mock.calls.length,
       ).toEqual(1)
       expect(
-        // @ts-ignore
+        // @ts-expect-error
         core[Symbol.for('uppy test: getPlugins')]('acquirer')[0].mocks.update
           .mock.calls[0],
       ).toEqual([{ foo: 'bar' }])
       expect(
-        // @ts-ignore
+        // @ts-expect-error
         core[Symbol.for('uppy test: getPlugins')]('acquirer')[1].mocks.update
           .mock.calls.length,
       ).toEqual(1)
       expect(
-        // @ts-ignore
+        // @ts-expect-error
         core[Symbol.for('uppy test: getPlugins')]('acquirer')[1].mocks.update
           .mock.calls[0],
       ).toEqual([{ foo: 'bar' }])
@@ -285,12 +285,12 @@ describe('src/Core', () => {
       expect(core.getState()).toEqual(newState)
 
       expect(
-        // @ts-ignore
+        // @ts-expect-error
         core[Symbol.for('uppy test: getPlugins')]('acquirer')[0].mocks.update
           .mock.calls[1],
       ).toEqual([newState])
       expect(
-        // @ts-ignore
+        // @ts-expect-error
         core[Symbol.for('uppy test: getPlugins')]('acquirer')[1].mocks.update
           .mock.calls[1],
       ).toEqual([newState])
@@ -405,7 +405,7 @@ describe('src/Core', () => {
     })
 
     const fileIDs = Object.keys(core.getState().files)
-    // @ts-ignore
+    // @ts-expect-error
     const id = core[Symbol.for('uppy test: createUpload')](fileIDs)
 
     expect(core.getState().currentUploads[id]).toBeDefined()
@@ -443,7 +443,7 @@ describe('src/Core', () => {
     })
 
     const fileIDs = Object.keys(core.getState().files)
-    // @ts-ignore
+    // @ts-expect-error
     const id = core[Symbol.for('uppy test: createUpload')](fileIDs)
 
     expect(core.getState().currentUploads[id]).toBeDefined()
@@ -481,7 +481,7 @@ describe('src/Core', () => {
     })
 
     const fileIDs = Object.keys(core.getState().files)
-    // @ts-ignore
+    // @ts-expect-error
     const id = core[Symbol.for('uppy test: createUpload')](fileIDs)
 
     expect(core.getState().currentUploads[id]).toBeDefined()
@@ -522,7 +522,7 @@ describe('src/Core', () => {
     })
 
     const fileIDs = Object.keys(core.getState().files)
-    // @ts-ignore
+    // @ts-expect-error
     const id = core[Symbol.for('uppy test: createUpload')](fileIDs)
 
     expect(core.getState().currentUploads[id]).toBeDefined()
@@ -543,7 +543,7 @@ describe('src/Core', () => {
 
     const coreCancelEventMock = vi.fn()
     const coreStateUpdateEventMock = vi.fn()
-    // @ts-ignore
+    // @ts-expect-error
     const plugin = core[Symbol.for('uppy test: getPlugins')]('acquirer')[0]
 
     core.on('cancel-all', coreCancelEventMock)
@@ -939,7 +939,7 @@ describe('src/Core', () => {
           source: 'vi',
           name: 'foo.webm',
           type: 'video/webm; codecs="vp8, opus"',
-          // @ts-ignore
+          // @ts-expect-error
           data: new File([sampleImage], {
             type: 'video/webm; codecs="vp8, opus"',
           }),
@@ -1106,7 +1106,7 @@ describe('src/Core', () => {
     it('does not dedupe different files', async () => {
       const core = new Core()
       const data = new Blob([sampleImage], { type: 'image/jpeg' })
-      // @ts-ignore
+      // @ts-expect-error
       data.lastModified = 1562770350937
 
       core.addFile({
@@ -1165,7 +1165,6 @@ describe('src/Core', () => {
         fileIDs.forEach((fileID) => {
           const file = core.getFile(fileID)
           if (file.name != null && /bar/.test(file.name)) {
-            // @ts-ignore
             core.emit(
               'upload-error',
               file,
@@ -1199,9 +1198,8 @@ describe('src/Core', () => {
 
     it('should only upload files that are not already assigned to another upload id', () => {
       const core = new Core()
-      // @ts-ignore
+      // @ts-expect-error
       core.store.state.currentUploads = {
-        // @ts-ignore
         upload1: {
           fileIDs: [
             'uppy-file1/jpg-1e-image/jpeg',
@@ -1209,7 +1207,6 @@ describe('src/Core', () => {
             'uppy-file3/jpg-1e-image/jpeg',
           ],
         },
-        // @ts-ignore
         upload2: {
           fileIDs: [
             'uppy-file4/jpg-1e-image/jpeg',
@@ -1224,21 +1221,21 @@ describe('src/Core', () => {
         source: 'vi',
         name: 'foo.jpg',
         type: 'image/jpeg',
-        // @ts-ignore
+        // @ts-expect-error
         data: new Uint8Array(),
       })
       core.addFile({
         source: 'vi',
         name: 'bar.jpg',
         type: 'image/jpeg',
-        // @ts-ignore
+        // @ts-expect-error
         data: new Uint8Array(),
       })
       core.addFile({
         source: 'file3',
         name: 'file3.jpg',
         type: 'image/jpeg',
-        // @ts-ignore
+        // @ts-expect-error
         data: new Uint8Array(),
       })
 
@@ -1344,7 +1341,6 @@ describe('src/Core', () => {
         fileIDs.forEach((fileID) => {
           const file = core.getFile(fileID)
           if (!hasError) {
-            // @ts-ignore
             core.emit('upload-error', file, new Error('foo'))
             hasError = true
           }
@@ -1548,7 +1544,7 @@ describe('src/Core', () => {
         core.setFileMeta(fileId, { caption: 'Test caption' })
 
         // Trigger the dashboard:file-edit-complete event to update validation state
-        // @ts-ignore
+        // @ts-expect-error
         core.emit('dashboard:file-edit-complete', core.getFile(fileId))
 
         const updatedFile = core.getFile(fileId)
@@ -1609,7 +1605,7 @@ describe('src/Core', () => {
 
         // Fix metadata for first file only
         core.setFileMeta(fileId1, { caption: 'Fixed caption' })
-        // @ts-ignore
+        // @ts-expect-error
         core.emit('dashboard:file-edit-complete', core.getFile(fileId1))
 
         // Add an error to file1 so it can be retried
@@ -1676,7 +1672,7 @@ describe('src/Core', () => {
         source: 'vi',
         name: 'empty.dat',
         type: 'application/octet-stream',
-        // @ts-ignore
+        // @ts-expect-error
         data: new File([new Uint8Array(1000)], {
           type: 'application/octet-stream',
         }),
@@ -1768,7 +1764,7 @@ describe('src/Core', () => {
           source: 'vi',
           name: 'foo1.png',
           type: 'image/png',
-          // @ts-ignore
+          // @ts-expect-error
           data: new File([sampleImage], { type: 'image/png' }),
         })
         throw new Error('should have thrown')
@@ -1786,7 +1782,7 @@ describe('src/Core', () => {
           source: 'vi',
           name: 'foo1.png',
           type: 'image/png',
-          // @ts-ignore
+          // @ts-expect-error
           data: new File([sampleImage], { type: 'image/png' }),
         })
         throw new Error('should have thrown')
@@ -1813,7 +1809,7 @@ describe('src/Core', () => {
           source: 'vi',
           name: 'foo1.png',
           type: 'image/png',
-          // @ts-ignore
+          // @ts-expect-error
           data: new File([sampleImage], { type: 'image/png' }),
         })
       }).not.toThrow()
@@ -1835,7 +1831,7 @@ describe('src/Core', () => {
         any
       >({
         store: DeepFrozenStore(),
-        // @ts-ignore
+        // @ts-expect-error
         meta: { foo2: 'bar2' },
       })
       core.setMeta({ foo: 'bar', bur: 'mur' })
@@ -1879,7 +1875,7 @@ describe('src/Core', () => {
         name: 'foo.jpg',
         type: 'image/jpeg',
         meta: {
-          // @ts-ignore
+          // @ts-expect-error
           resize: 5000,
         },
         data: testImage,
@@ -1910,7 +1906,7 @@ describe('src/Core', () => {
 
       core.emit('upload-start', [core.getFile(fileId)])
 
-      // @ts-ignore
+      // @ts-expect-error
       core.emit('upload-progress', file, {
         bytesUploaded: 12345,
         bytesTotal: 17175,
@@ -1923,7 +1919,7 @@ describe('src/Core', () => {
         uploadStarted: expect.any(Number),
       })
 
-      // @ts-ignore
+      // @ts-expect-error
       core.emit('upload-progress', file, {
         bytesUploaded: 17175,
         bytesTotal: 17175,
@@ -1951,13 +1947,13 @@ describe('src/Core', () => {
       core.addUploader(async ([id]) => {
         core.emit('upload-start', [core.getFile(id)])
         await progressPromise
-        // @ts-ignore deprecated
+        // @ts-expect-error deprecated
         core.emit('upload-progress', core.getFile(id), {
           bytesTotal: 3456,
           bytesUploaded: 1234,
         })
         await finishPromise
-        // @ts-ignore deprecated
+        // @ts-expect-error deprecated
         core.emit('upload-success', core.getFile(id), { uploadURL: 'lol' })
       })
 
@@ -1965,11 +1961,11 @@ describe('src/Core', () => {
         source: 'dropbox',
         name: 'foo.jpg',
         type: 'image/jpeg',
-        // @ts-ignore
+        // @ts-expect-error
         data: {},
       })
 
-      // @ts-ignore
+      // @ts-expect-error
       core[Symbol.for('uppy test: updateTotalProgress')]()
 
       const uploadStartedPromise = new Promise((resolve) =>
@@ -1985,7 +1981,7 @@ describe('src/Core', () => {
         bytesTotal: null,
       })
 
-      // @ts-ignore
+      // @ts-expect-error
       proceedUpload()
       // wait for progress event
       await progressPromise
@@ -1999,7 +1995,7 @@ describe('src/Core', () => {
 
       expect(core.getState().totalProgress).toBe(36)
 
-      // @ts-ignore
+      // @ts-expect-error
       finishUpload()
       // wait for success event
       await finishPromise
@@ -2021,7 +2017,7 @@ describe('src/Core', () => {
 
       core.once('file-added', (file) => {
         core.emit('upload-start', [file])
-        // @ts-ignore
+        // @ts-expect-error
         core.emit('upload-progress', file, {
           bytesTotal: 3456,
           bytesUploaded: 1234,
@@ -2031,16 +2027,15 @@ describe('src/Core', () => {
         source: 'dropbox',
         name: 'foo.jpg',
         type: 'image/jpeg',
-        // @ts-ignore
+        // @ts-expect-error
         data: {},
       })
 
       core.once('file-added', (file) => {
         core.emit('upload-start', [file])
         core.emit('upload-progress', file, {
-          // @ts-ignore
           bytesTotal: null,
-          // @ts-ignore
+          // @ts-expect-error
           bytesUploaded: null,
         })
       })
@@ -2048,11 +2043,11 @@ describe('src/Core', () => {
         source: 'dropbox',
         name: 'bar.jpg',
         type: 'image/jpeg',
-        // @ts-ignore
+        // @ts-expect-error
         data: {},
       })
 
-      // @ts-ignore
+      // @ts-expect-error
       core[Symbol.for('uppy test: updateTotalProgress')]()
 
       // foo.jpg at 35%, bar.jpg has unknown size and will not be counted
@@ -2082,27 +2077,27 @@ describe('src/Core', () => {
 
       const [file1, file2] = core.getFiles()
       core.setFileState(file1.id, {
-        // @ts-ignore suddenly dates??
+        // @ts-expect-error suddenly dates??
         progress: { ...file1.progress, uploadStarted: new Date() },
       })
       core.setFileState(file2.id, {
-        // @ts-ignore suddenly dates??
+        // @ts-expect-error suddenly dates??
         progress: { ...file2.progress, uploadStarted: new Date() },
       })
 
-      // @ts-ignore test does not care about missing properties
+      // @ts-expect-error test does not care about missing properties
       core.emit('upload-progress', core.getFile(file1.id), {
         bytesUploaded: 12345,
         bytesTotal: 17175,
       })
 
-      // @ts-ignore test does not care about missing properties
+      // @ts-expect-error test does not care about missing properties
       core.emit('upload-progress', core.getFile(file2.id), {
         bytesUploaded: 10201,
         bytesTotal: 17175,
       })
 
-      // @ts-ignore
+      // @ts-expect-error
       core[Symbol.for('uppy test: updateTotalProgress')]()
 
       expect(core.getState().totalProgress).toEqual(66)
@@ -2126,27 +2121,27 @@ describe('src/Core', () => {
 
       const [file1, file2] = core.getFiles()
       core.setFileState(file1.id, {
-        // @ts-ignore suddenly dates??
+        // @ts-expect-error suddenly dates??
         progress: { ...file1.progress, uploadStarted: new Date() },
       })
       core.setFileState(file2.id, {
-        // @ts-ignore suddenly dates??
+        // @ts-expect-error suddenly dates??
         progress: { ...file2.progress, uploadStarted: new Date() },
       })
 
-      // @ts-ignore test does not care about missing properties
+      // @ts-expect-error test does not care about missing properties
       core.emit('upload-progress', core.getFile(file1.id), {
         bytesUploaded: 12345,
         bytesTotal: 17175,
       })
 
-      // @ts-ignore test does not care about missing properties
+      // @ts-expect-error test does not care about missing properties
       core.emit('upload-progress', core.getFile(file2.id), {
         bytesUploaded: 10201,
         bytesTotal: 17175,
       })
 
-      // @ts-ignore
+      // @ts-expect-error
       core[Symbol.for('uppy test: updateTotalProgress')]()
 
       expect(core.getState().totalProgress).toEqual(66)
@@ -2199,7 +2194,7 @@ describe('src/Core', () => {
           },
         },
       }
-      // @ts-ignore
+      // @ts-expect-error
       core.setState(newState)
       expect(() => {
         core.clear()
@@ -2486,14 +2481,13 @@ describe('src/Core', () => {
       const core = new Core()
       core.setState({
         files: {
-          // @ts-ignore
+          // @ts-expect-error
           fileId: {
             id: 'fileId',
             name: 'filename',
           },
         },
       })
-      // @ts-ignore test does not care about missing properties
       core.emit(
         'upload-error',
         core.getFile('fileId'),
@@ -2510,9 +2504,9 @@ describe('src/Core', () => {
 
     it('should reset the error state when receiving the upload event', () => {
       const core = new Core()
-      // @ts-ignore test does not care about missing properties
+      // @ts-expect-error test does not care about missing properties
       core.emit('error', { foo: 'bar' })
-      // @ts-ignore test does not care about missing properties
+      // @ts-expect-error test does not care about missing properties
       core.emit('upload')
       expect(core.getState().error).toEqual(null)
     })
@@ -2529,7 +2523,7 @@ describe('src/Core', () => {
     }
 
     afterEach(() => {
-      // @ts-ignore readonly but whatever
+      // @ts-expect-error readonly but whatever
       globalThis.window.navigator.onLine = RealNavigatorOnline
     })
 
@@ -2538,11 +2532,8 @@ describe('src/Core', () => {
       const offlineEventMock = vi.fn()
       const backOnlineEventMock = vi.fn()
       const core = new Core()
-      // @ts-ignore untyped
       core.on('is-offline', offlineEventMock)
-      // @ts-ignore untyped
       core.on('is-online', onlineEventMock)
-      // @ts-ignore untyped
       core.on('back-online', backOnlineEventMock)
 
       mockNavigatorOnline(true)
@@ -2689,7 +2680,7 @@ describe('src/Core', () => {
         data: testImage,
       })
 
-      // @ts-ignore accessing private method
+      // @ts-expect-error accessing private method
       core[Symbol.for('uppy test: createUpload')](
         Object.keys(core.getState().files),
       )
@@ -2754,11 +2745,11 @@ describe('src/Core', () => {
 
       // logger.debug should have been called 1 time above,
       // but we call log in Core’s constructor to output VERSION, hence +1 here
-      // @ts-ignore
+      // @ts-expect-error
       expect(core.opts.logger.debug.mock.calls.length).toBe(2)
-      // @ts-ignore
+      // @ts-expect-error
       expect(core.opts.logger.error.mock.calls.length).toBe(2)
-      // @ts-ignore
+      // @ts-expect-error
       expect(core.opts.logger.warn.mock.calls.length).toBe(1)
     })
 
@@ -2781,13 +2772,13 @@ describe('src/Core', () => {
 
       // logger.debug should have been called 1 time above,
       // but we call log in Core’s constructor to output VERSION, hence +1 here
-      // @ts-ignore
+      // @ts-expect-error
       expect(core.opts.logger.debug.mock.calls.length).toBe(2)
-      // @ts-ignore
+      // @ts-expect-error
       expect(core.opts.logger.error.mock.calls.length).toBe(2)
       // logger.warn should have been called 1 time above,
       // but we warn in Core when using both logger and debug: true, hence +1 here
-      // @ts-ignore
+      // @ts-expect-error
       expect(core.opts.logger.warn.mock.calls.length).toBe(2)
     })
 
@@ -2805,14 +2796,14 @@ describe('src/Core', () => {
 
       // console.debug debug should have been called 2 times above,
       // ibut we call log n Core’ constructor to output VERSION, hence +1 here
-      // @ts-ignore
+      // @ts-expect-error
       expect(console.debug.mock.calls.length).toBe(3)
-      // @ts-ignore
+      // @ts-expect-error
       expect(console.error.mock.calls.length).toBe(1)
 
-      // @ts-ignore
+      // @ts-expect-error
       console.debug.mockClear()
-      // @ts-ignore
+      // @ts-expect-error
       console.error.mockClear()
 
       const core2 = new Core({
@@ -2825,9 +2816,9 @@ describe('src/Core', () => {
 
       // console.debug debug should have been called 2 times here,
       // but we call log in Core constructor to output VERSION, hence +1 here
-      // @ts-ignore
+      // @ts-expect-error
       expect(console.debug.mock.calls.length).toBe(3)
-      // @ts-ignore
+      // @ts-expect-error
       expect(console.error.mock.calls.length).toBe(1)
     })
 
@@ -2841,9 +2832,9 @@ describe('src/Core', () => {
       core.log('beep boop')
       core.log('beep beep', 'error')
 
-      // @ts-ignore
+      // @ts-expect-error
       expect(console.debug.mock.calls.length).toBe(0)
-      // @ts-ignore
+      // @ts-expect-error
       expect(console.error.mock.calls.length).toBe(1)
     })
   })
diff --git a/packages/@uppy/core/src/Uppy.ts b/packages/@uppy/core/src/Uppy.ts
index f434894ae..73d0dd812 100644
--- a/packages/@uppy/core/src/Uppy.ts
+++ b/packages/@uppy/core/src/Uppy.ts
@@ -25,7 +25,7 @@ import {
   Translator,
 } from '@uppy/utils'
 import throttle from 'lodash/throttle.js'
-// @ts-ignore untyped
+// @ts-expect-error untyped
 import ee from 'namespace-emitter'
 import { nanoid } from 'nanoid/non-secure'
 import type { h } from 'preact'
@@ -511,7 +511,7 @@ export class Uppy<
 
     // Exposing uppy object on window for debugging and testing
     if (this.opts.debug && typeof window !== 'undefined') {
-      // @ts-ignore Mutating the global object for debug purposes
+      // @ts-expect-error Mutating the global object for debug purposes
       window[this.opts.id] = this
     }
 
@@ -1592,6 +1592,7 @@ export class Uppy<
     { leading: true, trailing: true },
   )
 
+  // biome-ignore lint/correctness/noUnusedPrivateClassMembers: accessed via Symbol in tests
   private [Symbol.for('uppy test: updateTotalProgress')]() {
     return this.#updateTotalProgress()
   }
@@ -1977,6 +1978,7 @@ export class Uppy<
     return undefined
   }
 
+  // biome-ignore lint/correctness/noUnusedPrivateClassMembers: accessed via Symbol in tests
   private [Symbol.for('uppy test: getPlugins')](
     type: string,
   ): UnknownPlugin<M, B>[] {
@@ -2181,6 +2183,7 @@ export class Uppy<
     return uploadID
   }
 
+  // biome-ignore lint/correctness/noUnusedPrivateClassMembers: accessed via Symbol in tests
   private [Symbol.for('uppy test: createUpload')](...args: any[]): string {
     // @ts-expect-error https://github.com/microsoft/TypeScript/issues/47595
     return this.#createUpload(...args)
diff --git a/packages/@uppy/core/src/loggers.ts b/packages/@uppy/core/src/loggers.ts
index 409e4341a..a5df4e195 100644
--- a/packages/@uppy/core/src/loggers.ts
+++ b/packages/@uppy/core/src/loggers.ts
@@ -20,4 +20,4 @@ const debugLogger = {
     console.error(`[Uppy] [${getTimeStamp()}]`, ...args),
 }
 
-export { justErrorsLogger, debugLogger }
+export { debugLogger, justErrorsLogger }
diff --git a/packages/@uppy/dashboard/src/Dashboard.tsx b/packages/@uppy/dashboard/src/Dashboard.tsx
index cdde90d3f..422f1cda5 100644
--- a/packages/@uppy/dashboard/src/Dashboard.tsx
+++ b/packages/@uppy/dashboard/src/Dashboard.tsx
@@ -724,7 +724,7 @@ export default class Dashboard<M extends Meta, B extends Body> extends UIPlugin<
 
   private handlePopState = (event: PopStateEvent) => {
     // Close the modal if the history state no longer contains our modal name
-    if (this.isModalOpen() && (!event.state || !event.state[this.modalName])) {
+    if (this.isModalOpen() && !event.state?.[this.modalName]) {
       this.closeModal({ manualClose: false })
     }
 
@@ -970,9 +970,9 @@ export default class Dashboard<M extends Meta, B extends Body> extends UIPlugin<
     if (this.opts.trigger && !this.opts.inline) {
       const showModalTrigger = findAllDOMElements(this.opts.trigger)
       if (showModalTrigger) {
-        showModalTrigger.forEach((trigger) =>
-          trigger.addEventListener('click', this.openModal),
-        )
+        showModalTrigger.forEach((trigger) => {
+          trigger.addEventListener('click', this.openModal)
+        })
       } else {
         this.uppy.log(
           'Dashboard modal trigger not found. Make sure `trigger` is set in Dashboard options, unless you are planning to call `dashboard.openModal()` method yourself',
@@ -1010,9 +1010,9 @@ export default class Dashboard<M extends Meta, B extends Body> extends UIPlugin<
   removeEvents = (): void => {
     const showModalTrigger = findAllDOMElements(this.opts.trigger)
     if (!this.opts.inline && showModalTrigger) {
-      showModalTrigger.forEach((trigger) =>
-        trigger.removeEventListener('click', this.openModal),
-      )
+      showModalTrigger.forEach((trigger) => {
+        trigger.removeEventListener('click', this.openModal)
+      })
     }
 
     this.stopListeningToResize()
diff --git a/packages/@uppy/dashboard/src/components/AddFiles.tsx b/packages/@uppy/dashboard/src/components/AddFiles.tsx
index 643170295..ccafc3331 100644
--- a/packages/@uppy/dashboard/src/components/AddFiles.tsx
+++ b/packages/@uppy/dashboard/src/components/AddFiles.tsx
@@ -274,6 +274,7 @@ class AddFiles extends Component<AddFilesProps> {
     )
   }
 
+  // biome-ignore lint/correctness/noUnusedPrivateClassMembers: accessed via Symbol in tests
   private [Symbol.for('uppy test: disable unused locale key warning')]() {
     // Those are actually used in `renderDropPasteBrowseTagline` method.
     this.props.i18nArray('dropPasteBoth')
@@ -309,27 +310,6 @@ class AddFiles extends Component<AddFilesProps> {
     )
   }
 
-  private renderAcquirers = (acquirers: TargetWithRender[]) => {
-    // Group last two buttons, so we don’t end up with
-    // just one button on a new line
-    const acquirersWithoutLastTwo = [...acquirers]
-    const lastTwoAcquirers = acquirersWithoutLastTwo.splice(
-      acquirers.length - 2,
-      acquirers.length,
-    )
-
-    return (
-      <>
-        {acquirersWithoutLastTwo.map((acquirer) =>
-          this.renderAcquirer(acquirer),
-        )}
-        <span role="presentation" style={{ 'white-space': 'nowrap' }}>
-          {lastTwoAcquirers.map((acquirer) => this.renderAcquirer(acquirer))}
-        </span>
-      </>
-    )
-  }
-
   private renderSourcesList = (
     acquirers: TargetWithRender[],
     disableLocalFiles: boolean,
diff --git a/packages/@uppy/dashboard/src/components/AddFilesPanel.tsx b/packages/@uppy/dashboard/src/components/AddFilesPanel.tsx
index f46758793..40964abe9 100644
--- a/packages/@uppy/dashboard/src/components/AddFilesPanel.tsx
+++ b/packages/@uppy/dashboard/src/components/AddFilesPanel.tsx
@@ -13,7 +13,6 @@ const AddFilesPanel = (props: $TSFixMe): $TSFixMe => {
       <div className="uppy-DashboardContent-bar">
         <div
           className="uppy-DashboardContent-title"
-          // biome-ignore lint/a11y/useSemanticElements: ...
           role="heading"
           aria-level={1}
         >
diff --git a/packages/@uppy/dashboard/src/components/EditorPanel.tsx b/packages/@uppy/dashboard/src/components/EditorPanel.tsx
index 2e2f5c8cc..e6771b9e3 100644
--- a/packages/@uppy/dashboard/src/components/EditorPanel.tsx
+++ b/packages/@uppy/dashboard/src/components/EditorPanel.tsx
@@ -20,7 +20,6 @@ function EditorPanel(props: $TSFixMe) {
       <div className="uppy-DashboardContent-bar">
         <div
           className="uppy-DashboardContent-title"
-          // biome-ignore lint/a11y/useSemanticElements: ...
           role="heading"
           aria-level={1}
         >
diff --git a/packages/@uppy/dashboard/src/components/FileCard/index.tsx b/packages/@uppy/dashboard/src/components/FileCard/index.tsx
index ca88cf2b3..1ba41d068 100644
--- a/packages/@uppy/dashboard/src/components/FileCard/index.tsx
+++ b/packages/@uppy/dashboard/src/components/FileCard/index.tsx
@@ -115,7 +115,6 @@ export default function FileCard(props: $TSFixMe) {
       <div className="uppy-DashboardContent-bar">
         <div
           className="uppy-DashboardContent-title"
-          // biome-ignore lint/a11y/useSemanticElements: ...
           role="heading"
           aria-level={1}
         >
diff --git a/packages/@uppy/dashboard/src/components/FileList.tsx b/packages/@uppy/dashboard/src/components/FileList.tsx
index 6c291976e..24a47fe16 100644
--- a/packages/@uppy/dashboard/src/components/FileList.tsx
+++ b/packages/@uppy/dashboard/src/components/FileList.tsx
@@ -1,6 +1,5 @@
 import type { Body, Meta, State, Uppy, UppyFile } from '@uppy/core'
 import type { I18n } from '@uppy/utils'
-// @ts-ignore untyped
 import { VirtualList } from '@uppy/utils'
 import { useMemo } from 'preact/hooks'
 import type { DashboardState } from '../Dashboard.js'
diff --git a/packages/@uppy/dashboard/src/components/PickerPanelContent.tsx b/packages/@uppy/dashboard/src/components/PickerPanelContent.tsx
index 7c9206fb3..f61d00e12 100644
--- a/packages/@uppy/dashboard/src/components/PickerPanelContent.tsx
+++ b/packages/@uppy/dashboard/src/components/PickerPanelContent.tsx
@@ -27,7 +27,6 @@ function PickerPanelContent({
       <div className="uppy-DashboardContent-bar">
         <div
           className="uppy-DashboardContent-title"
-          // biome-ignore lint/a11y/useSemanticElements: ...
           role="heading"
           aria-level={1}
         >
diff --git a/packages/@uppy/dashboard/src/components/StatusBar/Components.tsx b/packages/@uppy/dashboard/src/components/StatusBar/Components.tsx
index 3cdf5722d..4d1316e8f 100644
--- a/packages/@uppy/dashboard/src/components/StatusBar/Components.tsx
+++ b/packages/@uppy/dashboard/src/components/StatusBar/Components.tsx
@@ -456,7 +456,6 @@ function ProgressBarComplete(props: ProgressBarCompleteProps) {
   return (
     <div
       className="uppy-StatusBar-content"
-      // biome-ignore lint/a11y/useSemanticElements: ...
       role="status"
       title={i18n('complete')}
     >
@@ -531,16 +530,17 @@ function ProgressBarError(props: ProgressBarErrorProps) {
     </div>
   )
 }
+
 export {
-  UploadBtn,
-  RetryBtn,
   CancelBtn,
-  PauseResumeButton,
   DoneBtn,
   LoadingSpinner,
-  ProgressDetails,
-  ProgressBarProcessing,
-  ProgressBarError,
-  ProgressBarUploading,
+  PauseResumeButton,
   ProgressBarComplete,
+  ProgressBarError,
+  ProgressBarProcessing,
+  ProgressBarUploading,
+  ProgressDetails,
+  RetryBtn,
+  UploadBtn,
 }
diff --git a/packages/@uppy/dashboard/src/index.test.ts b/packages/@uppy/dashboard/src/index.test.ts
index 72398e9f9..b11723b61 100644
--- a/packages/@uppy/dashboard/src/index.test.ts
+++ b/packages/@uppy/dashboard/src/index.test.ts
@@ -1,8 +1,6 @@
 import Core, { type UIPlugin } from '@uppy/core'
 import GoogleDrivePlugin from '@uppy/google-drive'
-// @ts-ignore untyped
 import Url from '@uppy/url'
-// @ts-ignore untyped
 import WebcamPlugin from '@uppy/webcam'
 import resizeObserverPolyfill from 'resize-observer-polyfill'
 import { afterAll, beforeAll, describe, expect, it } from 'vitest'
@@ -12,7 +10,6 @@ type $TSFixMe = any
 
 describe('Dashboard', () => {
   beforeAll(() => {
-    // @ts-ignore we're touching globals for the test
     globalThis.ResizeObserver =
       (resizeObserverPolyfill as any).default || resizeObserverPolyfill
   })
diff --git a/packages/@uppy/dashboard/src/utils/createSuperFocus.ts b/packages/@uppy/dashboard/src/utils/createSuperFocus.ts
index 8d6926574..34c0e8e18 100644
--- a/packages/@uppy/dashboard/src/utils/createSuperFocus.ts
+++ b/packages/@uppy/dashboard/src/utils/createSuperFocus.ts
@@ -1,4 +1,3 @@
-// @ts-ignore untyped
 import { FOCUSABLE_ELEMENTS } from '@uppy/utils'
 import debounce from 'lodash/debounce.js'
 import getActiveOverlayEl from './getActiveOverlayEl.js'
diff --git a/packages/@uppy/dashboard/src/utils/trapFocus.ts b/packages/@uppy/dashboard/src/utils/trapFocus.ts
index c902f4fbd..598ad14c9 100644
--- a/packages/@uppy/dashboard/src/utils/trapFocus.ts
+++ b/packages/@uppy/dashboard/src/utils/trapFocus.ts
@@ -1,4 +1,3 @@
-// @ts-ignore untyped
 import { FOCUSABLE_ELEMENTS, toArray } from '@uppy/utils'
 import getActiveOverlayEl from './getActiveOverlayEl.js'
 
diff --git a/packages/@uppy/form/src/index.ts b/packages/@uppy/form/src/index.ts
index 798fff854..ba36e8cc8 100644
--- a/packages/@uppy/form/src/index.ts
+++ b/packages/@uppy/form/src/index.ts
@@ -9,7 +9,7 @@ import type {
 import { BasePlugin } from '@uppy/core'
 import { findDOMElement, toArray } from '@uppy/utils'
 
-// @ts-ignore untyped
+// @ts-expect-error untyped
 import getFormData from 'get-form-data'
 
 import packageJson from '../package.json' with { type: 'json' }
diff --git a/packages/@uppy/golden-retriever/src/index.ts b/packages/@uppy/golden-retriever/src/index.ts
index 0898c374a..3b5c878a8 100644
--- a/packages/@uppy/golden-retriever/src/index.ts
+++ b/packages/@uppy/golden-retriever/src/index.ts
@@ -15,7 +15,6 @@ import MetaDataStore from './MetaDataStore.js'
 import ServiceWorkerStore from './ServiceWorkerStore.js'
 
 declare module '@uppy/core' {
-  // biome-ignore lint/correctness/noUnusedVariables: must be defined
   export interface UppyEventMap<M extends Meta, B extends Body> {
     'restore:plugin-data-changed': (data: Record<string, unknown>) => void
   }
diff --git a/packages/@uppy/locales/src/ar_SA.ts b/packages/@uppy/locales/src/ar_SA.ts
index bf750b7e6..5726332aa 100644
--- a/packages/@uppy/locales/src/ar_SA.ts
+++ b/packages/@uppy/locales/src/ar_SA.ts
@@ -136,9 +136,9 @@ ar_SA.strings = {
   openFolderNamed: '%{name} افتح المجلد',
 }
 
-// @ts-ignore untyped
+// @ts-expect-error untyped
 if (typeof Uppy !== 'undefined') {
-  // @ts-ignore untyped
+  // @ts-expect-error untyped
   globalThis.Uppy.locales.ar_SA = ar_SA
 }
 
diff --git a/packages/@uppy/locales/src/bg_BG.ts b/packages/@uppy/locales/src/bg_BG.ts
index 0bfb50cbc..637e505e0 100644
--- a/packages/@uppy/locales/src/bg_BG.ts
+++ b/packages/@uppy/locales/src/bg_BG.ts
@@ -164,9 +164,9 @@ bg_BG.strings = {
   },
 }
 
-// @ts-ignore untyped
+// @ts-expect-error untyped
 if (typeof Uppy !== 'undefined') {
-  // @ts-ignore untyped
+  // @ts-expect-error untyped
   globalThis.Uppy.locales.bg_BG = bg_BG
 }
 
diff --git a/packages/@uppy/locales/src/ca_ES.ts b/packages/@uppy/locales/src/ca_ES.ts
index f05b43102..bce9a1296 100644
--- a/packages/@uppy/locales/src/ca_ES.ts
+++ b/packages/@uppy/locales/src/ca_ES.ts
@@ -229,9 +229,9 @@ ca_ES.strings = {
   unselectFileNamed: 'Desselecciona arxiu %{name}',
 }
 
-// @ts-ignore untyped
+// @ts-expect-error untyped
 if (typeof Uppy !== 'undefined') {
-  // @ts-ignore untyped
+  // @ts-expect-error untyped
   globalThis.Uppy.locales.ca_ES = ca_ES
 }
 
diff --git a/packages/@uppy/locales/src/cs_CZ.ts b/packages/@uppy/locales/src/cs_CZ.ts
index 9720ad308..148929450 100644
--- a/packages/@uppy/locales/src/cs_CZ.ts
+++ b/packages/@uppy/locales/src/cs_CZ.ts
@@ -274,9 +274,9 @@ cs_CZ.strings = {
   zoomOut: 'Oddálit',
 }
 
-// @ts-ignore untyped
+// @ts-expect-error untyped
 if (typeof Uppy !== 'undefined') {
-  // @ts-ignore untyped
+  // @ts-expect-error untyped
   globalThis.Uppy.locales.cs_CZ = cs_CZ
 }
 
diff --git a/packages/@uppy/locales/src/da_DK.ts b/packages/@uppy/locales/src/da_DK.ts
index 21d99dc3e..1e8f807cf 100644
--- a/packages/@uppy/locales/src/da_DK.ts
+++ b/packages/@uppy/locales/src/da_DK.ts
@@ -141,9 +141,9 @@ da_DK.strings = {
   },
 }
 
-// @ts-ignore untyped
+// @ts-expect-error untyped
 if (typeof Uppy !== 'undefined') {
-  // @ts-ignore untyped
+  // @ts-expect-error untyped
   globalThis.Uppy.locales.da_DK = da_DK
 }
 
diff --git a/packages/@uppy/locales/src/de_DE.ts b/packages/@uppy/locales/src/de_DE.ts
index b6bbb4cba..9c1d99b0d 100644
--- a/packages/@uppy/locales/src/de_DE.ts
+++ b/packages/@uppy/locales/src/de_DE.ts
@@ -210,9 +210,9 @@ de_DE.strings = {
   zoomOut: 'Verkleinern',
 }
 
-// @ts-ignore untyped
+// @ts-expect-error untyped
 if (typeof Uppy !== 'undefined') {
-  // @ts-ignore untyped
+  // @ts-expect-error untyped
   globalThis.Uppy.locales.de_DE = de_DE
 }
 
diff --git a/packages/@uppy/locales/src/el_GR.ts b/packages/@uppy/locales/src/el_GR.ts
index dcad28a60..615121078 100644
--- a/packages/@uppy/locales/src/el_GR.ts
+++ b/packages/@uppy/locales/src/el_GR.ts
@@ -145,9 +145,9 @@ el_GR.strings = {
   },
 }
 
-// @ts-ignore untyped
+// @ts-expect-error untyped
 if (typeof Uppy !== 'undefined') {
-  // @ts-ignore untyped
+  // @ts-expect-error untyped
   globalThis.Uppy.locales.el_GR = el_GR
 }
 
diff --git a/packages/@uppy/locales/src/en_US.ts b/packages/@uppy/locales/src/en_US.ts
index b8a925181..c3f95e82d 100644
--- a/packages/@uppy/locales/src/en_US.ts
+++ b/packages/@uppy/locales/src/en_US.ts
@@ -252,9 +252,9 @@ en_US.strings = {
   zoomOut: 'Zoom out',
 }
 
-// @ts-ignore untyped
+// @ts-expect-error untyped
 if (typeof Uppy !== 'undefined') {
-  // @ts-ignore untyped
+  // @ts-expect-error untyped
   globalThis.Uppy.locales.en_US = en_US
 }
 
diff --git a/packages/@uppy/locales/src/es_ES.ts b/packages/@uppy/locales/src/es_ES.ts
index 7114a7cf2..e4581f90e 100644
--- a/packages/@uppy/locales/src/es_ES.ts
+++ b/packages/@uppy/locales/src/es_ES.ts
@@ -232,9 +232,9 @@ es_ES.strings = {
   unselectFileNamed: 'Deseleccionar archivo %{name}',
 }
 
-// @ts-ignore untyped
+// @ts-expect-error untyped
 if (typeof Uppy !== 'undefined') {
-  // @ts-ignore untyped
+  // @ts-expect-error untyped
   globalThis.Uppy.locales.es_ES = es_ES
 }
 
diff --git a/packages/@uppy/locales/src/es_MX.ts b/packages/@uppy/locales/src/es_MX.ts
index 21efd7d14..b8eb47986 100644
--- a/packages/@uppy/locales/src/es_MX.ts
+++ b/packages/@uppy/locales/src/es_MX.ts
@@ -198,9 +198,9 @@ es_MX.strings = {
   zoomOut: 'Alejar',
 }
 
-// @ts-ignore untyped
+// @ts-expect-error untyped
 if (typeof Uppy !== 'undefined') {
-  // @ts-ignore untyped
+  // @ts-expect-error untyped
   globalThis.Uppy.locales.es_MX = es_MX
 }
 
diff --git a/packages/@uppy/locales/src/fa_IR.ts b/packages/@uppy/locales/src/fa_IR.ts
index 024e96e59..1b69091ca 100644
--- a/packages/@uppy/locales/src/fa_IR.ts
+++ b/packages/@uppy/locales/src/fa_IR.ts
@@ -221,9 +221,9 @@ fa_IR.strings = {
   zoomOut: 'کوچک‌نمایی',
 }
 
-// @ts-ignore untyped
+// @ts-expect-error untyped
 if (typeof Uppy !== 'undefined') {
-  // @ts-ignore untyped
+  // @ts-expect-error untyped
   globalThis.Uppy.locales.fa_IR = fa_IR
 }
 
diff --git a/packages/@uppy/locales/src/fi_FI.ts b/packages/@uppy/locales/src/fi_FI.ts
index a2ec3d4d6..5eda5537b 100644
--- a/packages/@uppy/locales/src/fi_FI.ts
+++ b/packages/@uppy/locales/src/fi_FI.ts
@@ -146,9 +146,9 @@ fi_FI.strings = {
   recording: 'Tallennetaan',
 }
 
-// @ts-ignore untyped
+// @ts-expect-error untyped
 if (typeof Uppy !== 'undefined') {
-  // @ts-ignore untyped
+  // @ts-expect-error untyped
   globalThis.Uppy.locales.fi_FI = fi_FI
 }
 
diff --git a/packages/@uppy/locales/src/fr_FR.ts b/packages/@uppy/locales/src/fr_FR.ts
index 6a0fb817a..7a8f6d0f2 100644
--- a/packages/@uppy/locales/src/fr_FR.ts
+++ b/packages/@uppy/locales/src/fr_FR.ts
@@ -215,9 +215,9 @@ fr_FR.strings = {
   },
 }
 
-// @ts-ignore untyped
+// @ts-expect-error untyped
 if (typeof Uppy !== 'undefined') {
-  // @ts-ignore untyped
+  // @ts-expect-error untyped
   globalThis.Uppy.locales.fr_FR = fr_FR
 }
 
diff --git a/packages/@uppy/locales/src/gl_ES.ts b/packages/@uppy/locales/src/gl_ES.ts
index 35c0f63d9..25b2fed3f 100644
--- a/packages/@uppy/locales/src/gl_ES.ts
+++ b/packages/@uppy/locales/src/gl_ES.ts
@@ -143,9 +143,9 @@ gl_ES.strings = {
   openFolderNamed: 'Cartafol aberto %{name}',
 }
 
-// @ts-ignore untyped
+// @ts-expect-error untyped
 if (typeof Uppy !== 'undefined') {
-  // @ts-ignore untyped
+  // @ts-expect-error untyped
   globalThis.Uppy.locales.gl_ES = gl_ES
 }
 
diff --git a/packages/@uppy/locales/src/he_IL.ts b/packages/@uppy/locales/src/he_IL.ts
index eee51fca3..44a5d52f2 100644
--- a/packages/@uppy/locales/src/he_IL.ts
+++ b/packages/@uppy/locales/src/he_IL.ts
@@ -139,9 +139,9 @@ he_IL.strings = {
   },
 }
 
-// @ts-ignore untyped
+// @ts-expect-error untyped
 if (typeof Uppy !== 'undefined') {
-  // @ts-ignore untyped
+  // @ts-expect-error untyped
   globalThis.Uppy.locales.he_IL = he_IL
 }
 
diff --git a/packages/@uppy/locales/src/hi_IN.ts b/packages/@uppy/locales/src/hi_IN.ts
index d42d3b7e5..587d31f50 100644
--- a/packages/@uppy/locales/src/hi_IN.ts
+++ b/packages/@uppy/locales/src/hi_IN.ts
@@ -189,9 +189,9 @@ hi_IN.strings = {
   zoomOut: 'ज़ूम आउट',
 }
 
-// @ts-ignore untyped
+// @ts-expect-error untyped
 if (typeof Uppy !== 'undefined') {
-  // @ts-ignore untyped
+  // @ts-expect-error untyped
   globalThis.Uppy.locales.hi_IN = hi_IN
 }
 
diff --git a/packages/@uppy/locales/src/hr_HR.ts b/packages/@uppy/locales/src/hr_HR.ts
index 924b57b91..f347db827 100644
--- a/packages/@uppy/locales/src/hr_HR.ts
+++ b/packages/@uppy/locales/src/hr_HR.ts
@@ -143,9 +143,9 @@ hr_HR.strings = {
   openFolderNamed: 'Otvori mapu %{name}',
 }
 
-// @ts-ignore untyped
+// @ts-expect-error untyped
 if (typeof Uppy !== 'undefined') {
-  // @ts-ignore untyped
+  // @ts-expect-error untyped
   globalThis.Uppy.locales.hr_HR = hr_HR
 }
 
diff --git a/packages/@uppy/locales/src/hu_HU.ts b/packages/@uppy/locales/src/hu_HU.ts
index 94b1272f1..4b7f6d4af 100644
--- a/packages/@uppy/locales/src/hu_HU.ts
+++ b/packages/@uppy/locales/src/hu_HU.ts
@@ -105,9 +105,9 @@ hu_HU.strings = {
   openFolderNamed: 'Nyitott mappa %{name}',
 }
 
-// @ts-ignore untyped
+// @ts-expect-error untyped
 if (typeof Uppy !== 'undefined') {
-  // @ts-ignore untyped
+  // @ts-expect-error untyped
   globalThis.Uppy.locales.hu_HU = hu_HU
 }
 
diff --git a/packages/@uppy/locales/src/id_ID.ts b/packages/@uppy/locales/src/id_ID.ts
index b1d42b893..7daf65b02 100644
--- a/packages/@uppy/locales/src/id_ID.ts
+++ b/packages/@uppy/locales/src/id_ID.ts
@@ -140,9 +140,9 @@ id_ID.strings = {
   },
 }
 
-// @ts-ignore untyped
+// @ts-expect-error untyped
 if (typeof Uppy !== 'undefined') {
-  // @ts-ignore untyped
+  // @ts-expect-error untyped
   globalThis.Uppy.locales.id_ID = id_ID
 }
 
diff --git a/packages/@uppy/locales/src/is_IS.ts b/packages/@uppy/locales/src/is_IS.ts
index f3a7f0794..ebf4713b5 100644
--- a/packages/@uppy/locales/src/is_IS.ts
+++ b/packages/@uppy/locales/src/is_IS.ts
@@ -145,9 +145,9 @@ is_IS.strings = {
   },
 }
 
-// @ts-ignore untyped
+// @ts-expect-error untyped
 if (typeof Uppy !== 'undefined') {
-  // @ts-ignore untyped
+  // @ts-expect-error untyped
   globalThis.Uppy.locales.is_IS = is_IS
 }
 
diff --git a/packages/@uppy/locales/src/it_IT.ts b/packages/@uppy/locales/src/it_IT.ts
index b6f19029e..7508dce63 100644
--- a/packages/@uppy/locales/src/it_IT.ts
+++ b/packages/@uppy/locales/src/it_IT.ts
@@ -140,9 +140,9 @@ it_IT.strings = {
   openFolderNamed: 'Cartella aperta %{name}',
 }
 
-// @ts-ignore untyped
+// @ts-expect-error untyped
 if (typeof Uppy !== 'undefined') {
-  // @ts-ignore untyped
+  // @ts-expect-error untyped
   globalThis.Uppy.locales.it_IT = it_IT
 }
 
diff --git a/packages/@uppy/locales/src/ja_JP.ts b/packages/@uppy/locales/src/ja_JP.ts
index ebfbb1ac5..62e33ab51 100644
--- a/packages/@uppy/locales/src/ja_JP.ts
+++ b/packages/@uppy/locales/src/ja_JP.ts
@@ -148,9 +148,9 @@ ja_JP.strings = {
   openFolderNamed: '開いたフォルダ %{name}',
 }
 
-// @ts-ignore untyped
+// @ts-expect-error untyped
 if (typeof Uppy !== 'undefined') {
-  // @ts-ignore untyped
+  // @ts-expect-error untyped
   globalThis.Uppy.locales.ja_JP = ja_JP
 }
 
diff --git a/packages/@uppy/locales/src/ko_KR.ts b/packages/@uppy/locales/src/ko_KR.ts
index e40079c72..73138bd88 100644
--- a/packages/@uppy/locales/src/ko_KR.ts
+++ b/packages/@uppy/locales/src/ko_KR.ts
@@ -108,9 +108,9 @@ ko_KR.strings = {
   youHaveToAtLeastSelectX: '최소 %{smart_count}개의 파일을 선택해야 합니다',
 }
 
-// @ts-ignore untyped
+// @ts-expect-error untyped
 if (typeof Uppy !== 'undefined') {
-  // @ts-ignore untyped
+  // @ts-expect-error untyped
   globalThis.Uppy.locales.ko_KR = ko_KR
 }
 
diff --git a/packages/@uppy/locales/src/ms_MY.ts b/packages/@uppy/locales/src/ms_MY.ts
index 941c65fee..1358ea330 100644
--- a/packages/@uppy/locales/src/ms_MY.ts
+++ b/packages/@uppy/locales/src/ms_MY.ts
@@ -232,9 +232,9 @@ ms_MY.strings = {
   zoomOut: 'Zum keluar',
 }
 
-// @ts-ignore untyped
+// @ts-expect-error untyped
 if (typeof Uppy !== 'undefined') {
-  // @ts-ignore untyped
+  // @ts-expect-error untyped
   globalThis.Uppy.locales.ms_MY = ms_MY
 }
 
diff --git a/packages/@uppy/locales/src/nb_NO.ts b/packages/@uppy/locales/src/nb_NO.ts
index bf8d9d29d..6560c09f0 100644
--- a/packages/@uppy/locales/src/nb_NO.ts
+++ b/packages/@uppy/locales/src/nb_NO.ts
@@ -175,9 +175,9 @@ nb_NO.strings = {
   zoomOut: 'Zoom ut',
 }
 
-// @ts-ignore untyped
+// @ts-expect-error untyped
 if (typeof Uppy !== 'undefined') {
-  // @ts-ignore untyped
+  // @ts-expect-error untyped
   globalThis.Uppy.locales.nb_NO = nb_NO
 }
 
diff --git a/packages/@uppy/locales/src/nl_NL.ts b/packages/@uppy/locales/src/nl_NL.ts
index 28d2b604a..28a11ed7c 100644
--- a/packages/@uppy/locales/src/nl_NL.ts
+++ b/packages/@uppy/locales/src/nl_NL.ts
@@ -247,9 +247,9 @@ nl_NL.strings = {
   zoomOut: 'Zoom uit',
 }
 
-// @ts-ignore untyped
+// @ts-expect-error untyped
 if (typeof Uppy !== 'undefined') {
-  // @ts-ignore untyped
+  // @ts-expect-error untyped
   globalThis.Uppy.locales.nl_NL = nl_NL
 }
 
diff --git a/packages/@uppy/locales/src/pl_PL.ts b/packages/@uppy/locales/src/pl_PL.ts
index 1ca1d2b15..00b33458b 100644
--- a/packages/@uppy/locales/src/pl_PL.ts
+++ b/packages/@uppy/locales/src/pl_PL.ts
@@ -243,9 +243,9 @@ pl_PL.strings = {
   zoomOut: 'Pomniejsz',
 }
 
-// @ts-ignore untyped
+// @ts-expect-error untyped
 if (typeof Uppy !== 'undefined') {
-  // @ts-ignore untyped
+  // @ts-expect-error untyped
   globalThis.Uppy.locales.pl_PL = pl_PL
 }
 
diff --git a/packages/@uppy/locales/src/pt_BR.ts b/packages/@uppy/locales/src/pt_BR.ts
index 24a52c72a..48bbb1848 100644
--- a/packages/@uppy/locales/src/pt_BR.ts
+++ b/packages/@uppy/locales/src/pt_BR.ts
@@ -248,9 +248,9 @@ pt_BR.strings = {
   zoomOut: 'Diminuir o zoom',
 }
 
-// @ts-ignore untyped
+// @ts-expect-error untyped
 if (typeof Uppy !== 'undefined') {
-  // @ts-ignore untyped
+  // @ts-expect-error untyped
   globalThis.Uppy.locales.pt_BR = pt_BR
 }
 
diff --git a/packages/@uppy/locales/src/pt_PT.ts b/packages/@uppy/locales/src/pt_PT.ts
index 30195f868..13f2ce18a 100644
--- a/packages/@uppy/locales/src/pt_PT.ts
+++ b/packages/@uppy/locales/src/pt_PT.ts
@@ -140,9 +140,9 @@ pt_PT.strings = {
   openFolderNamed: 'Pasta aberta %{name}',
 }
 
-// @ts-ignore untyped
+// @ts-expect-error untyped
 if (typeof Uppy !== 'undefined') {
-  // @ts-ignore untyped
+  // @ts-expect-error untyped
   globalThis.Uppy.locales.pt_PT = pt_PT
 }
 
diff --git a/packages/@uppy/locales/src/ro_RO.ts b/packages/@uppy/locales/src/ro_RO.ts
index 7d005067b..f271c141b 100644
--- a/packages/@uppy/locales/src/ro_RO.ts
+++ b/packages/@uppy/locales/src/ro_RO.ts
@@ -154,9 +154,9 @@ ro_RO.strings = {
   },
 }
 
-// @ts-ignore untyped
+// @ts-expect-error untyped
 if (typeof Uppy !== 'undefined') {
-  // @ts-ignore untyped
+  // @ts-expect-error untyped
   globalThis.Uppy.locales.ro_RO = ro_RO
 }
 
diff --git a/packages/@uppy/locales/src/ru_RU.ts b/packages/@uppy/locales/src/ru_RU.ts
index 3bab2a12b..2411009a4 100644
--- a/packages/@uppy/locales/src/ru_RU.ts
+++ b/packages/@uppy/locales/src/ru_RU.ts
@@ -253,9 +253,9 @@ ru_RU.strings = {
   zoomOut: 'Отдалить',
 }
 
-// @ts-ignore untyped
+// @ts-expect-error untyped
 if (typeof Uppy !== 'undefined') {
-  // @ts-ignore untyped
+  // @ts-expect-error untyped
   globalThis.Uppy.locales.ru_RU = ru_RU
 }
 
diff --git a/packages/@uppy/locales/src/sk_SK.ts b/packages/@uppy/locales/src/sk_SK.ts
index 68ecc9ddb..68fc787a3 100644
--- a/packages/@uppy/locales/src/sk_SK.ts
+++ b/packages/@uppy/locales/src/sk_SK.ts
@@ -177,9 +177,9 @@ sk_SK.strings = {
   zoomOut: 'Oddialiť',
 }
 
-// @ts-ignore untyped
+// @ts-expect-error untyped
 if (typeof Uppy !== 'undefined') {
-  // @ts-ignore untyped
+  // @ts-expect-error untyped
   globalThis.Uppy.locales.sk_SK = sk_SK
 }
 
diff --git a/packages/@uppy/locales/src/sr_RS_Cyrillic.ts b/packages/@uppy/locales/src/sr_RS_Cyrillic.ts
index c9ff6dd40..aac4d0fa8 100644
--- a/packages/@uppy/locales/src/sr_RS_Cyrillic.ts
+++ b/packages/@uppy/locales/src/sr_RS_Cyrillic.ts
@@ -143,9 +143,9 @@ sr_RS_Cyrillic.strings = {
   openFolderNamed: 'Отвори фолдер %{name}',
 }
 
-// @ts-ignore untyped
+// @ts-expect-error untyped
 if (typeof Uppy !== 'undefined') {
-  // @ts-ignore untyped
+  // @ts-expect-error untyped
   globalThis.Uppy.locales.sr_RS_Cyrillic = sr_RS_Cyrillic
 }
 
diff --git a/packages/@uppy/locales/src/sr_RS_Latin.ts b/packages/@uppy/locales/src/sr_RS_Latin.ts
index 955040aed..987627082 100644
--- a/packages/@uppy/locales/src/sr_RS_Latin.ts
+++ b/packages/@uppy/locales/src/sr_RS_Latin.ts
@@ -143,9 +143,9 @@ sr_RS_Latin.strings = {
   openFolderNamed: 'Otvori folder %{name}',
 }
 
-// @ts-ignore untyped
+// @ts-expect-error untyped
 if (typeof Uppy !== 'undefined') {
-  // @ts-ignore untyped
+  // @ts-expect-error untyped
   globalThis.Uppy.locales.sr_RS_Latin = sr_RS_Latin
 }
 
diff --git a/packages/@uppy/locales/src/sv_SE.ts b/packages/@uppy/locales/src/sv_SE.ts
index 5f0a27b20..bb2a25105 100644
--- a/packages/@uppy/locales/src/sv_SE.ts
+++ b/packages/@uppy/locales/src/sv_SE.ts
@@ -244,9 +244,9 @@ sv_SE.strings = {
   zoomOut: 'Zooma ut',
 }
 
-// @ts-ignore untyped
+// @ts-expect-error untyped
 if (typeof Uppy !== 'undefined') {
-  // @ts-ignore untyped
+  // @ts-expect-error untyped
   globalThis.Uppy.locales.sv_SE = sv_SE
 }
 
diff --git a/packages/@uppy/locales/src/th_TH.ts b/packages/@uppy/locales/src/th_TH.ts
index 26eda6d50..10ed4a16f 100644
--- a/packages/@uppy/locales/src/th_TH.ts
+++ b/packages/@uppy/locales/src/th_TH.ts
@@ -166,9 +166,9 @@ th_TH.strings = {
   zoomOut: 'ซูมออก',
 }
 
-// @ts-ignore untyped
+// @ts-expect-error untyped
 if (typeof Uppy !== 'undefined') {
-  // @ts-ignore untyped
+  // @ts-expect-error untyped
   globalThis.Uppy.locales.th_TH = th_TH
 }
 
diff --git a/packages/@uppy/locales/src/tr_TR.ts b/packages/@uppy/locales/src/tr_TR.ts
index 2b9e1d5fc..76b1d12f2 100644
--- a/packages/@uppy/locales/src/tr_TR.ts
+++ b/packages/@uppy/locales/src/tr_TR.ts
@@ -141,9 +141,9 @@ tr_TR.strings = {
   openFolderNamed: 'Açık dosya %{name}',
 }
 
-// @ts-ignore untyped
+// @ts-expect-error untyped
 if (typeof Uppy !== 'undefined') {
-  // @ts-ignore untyped
+  // @ts-expect-error untyped
   globalThis.Uppy.locales.tr_TR = tr_TR
 }
 
diff --git a/packages/@uppy/locales/src/uk_UA.ts b/packages/@uppy/locales/src/uk_UA.ts
index 765503d1c..9af66cf49 100644
--- a/packages/@uppy/locales/src/uk_UA.ts
+++ b/packages/@uppy/locales/src/uk_UA.ts
@@ -238,9 +238,9 @@ uk_UA.strings = {
   zoomOut: 'Зменшити',
 }
 
-// @ts-ignore untyped
+// @ts-expect-error untyped
 if (typeof Uppy !== 'undefined') {
-  // @ts-ignore untyped
+  // @ts-expect-error untyped
   globalThis.Uppy.locales.uk_UA = uk_UA
 }
 
diff --git a/packages/@uppy/locales/src/uz_UZ.ts b/packages/@uppy/locales/src/uz_UZ.ts
index dec5b451f..6f344c55d 100644
--- a/packages/@uppy/locales/src/uz_UZ.ts
+++ b/packages/@uppy/locales/src/uz_UZ.ts
@@ -221,9 +221,9 @@ uz_UZ.strings = {
   zoomOut: 'Kichraytirish',
 }
 
-// @ts-ignore untyped
+// @ts-expect-error untyped
 if (typeof Uppy !== 'undefined') {
-  // @ts-ignore untyped
+  // @ts-expect-error untyped
   globalThis.Uppy.locales.uz_UZ = uz_UZ
 }
 
diff --git a/packages/@uppy/locales/src/vi_VN.ts b/packages/@uppy/locales/src/vi_VN.ts
index a8f9a371d..9b0265e0a 100644
--- a/packages/@uppy/locales/src/vi_VN.ts
+++ b/packages/@uppy/locales/src/vi_VN.ts
@@ -224,9 +224,9 @@ vi_VN.strings = {
   zoomOut: 'Thu nhỏ',
 }
 
-// @ts-ignore untyped
+// @ts-expect-error untyped
 if (typeof Uppy !== 'undefined') {
-  // @ts-ignore untyped
+  // @ts-expect-error untyped
   globalThis.Uppy.locales.vi_VN = vi_VN
 }
 
diff --git a/packages/@uppy/locales/src/zh_CN.ts b/packages/@uppy/locales/src/zh_CN.ts
index 36cc14031..b7686b22a 100644
--- a/packages/@uppy/locales/src/zh_CN.ts
+++ b/packages/@uppy/locales/src/zh_CN.ts
@@ -178,9 +178,9 @@ zh_CN.strings = {
   zoomOut: '缩小',
 }
 
-// @ts-ignore untyped
+// @ts-expect-error untyped
 if (typeof Uppy !== 'undefined') {
-  // @ts-ignore untyped
+  // @ts-expect-error untyped
   globalThis.Uppy.locales.zh_CN = zh_CN
 }
 
diff --git a/packages/@uppy/locales/src/zh_TW.ts b/packages/@uppy/locales/src/zh_TW.ts
index 764c96360..ee96d65f8 100644
--- a/packages/@uppy/locales/src/zh_TW.ts
+++ b/packages/@uppy/locales/src/zh_TW.ts
@@ -176,9 +176,9 @@ zh_TW.strings = {
   zoomOut: '縮小',
 }
 
-// @ts-ignore untyped
+// @ts-expect-error untyped
 if (typeof Uppy !== 'undefined') {
-  // @ts-ignore untyped
+  // @ts-expect-error untyped
   globalThis.Uppy.locales.zh_TW = zh_TW
 }
 
diff --git a/packages/@uppy/locales/template.ts b/packages/@uppy/locales/template.ts
index 3dabf0d3d..5aec61eb4 100644
--- a/packages/@uppy/locales/template.ts
+++ b/packages/@uppy/locales/template.ts
@@ -12,9 +12,9 @@ const en_US: Locale<0 | 1> = {
 
 en_US.strings = {}
 
-// @ts-ignore untyped
+// @ts-expect-error untyped
 if (typeof Uppy !== 'undefined') {
-  // @ts-ignore untyped
+  // @ts-expect-error untyped
   globalThis.Uppy.locales.en_US = en_US
 }
 
diff --git a/packages/@uppy/status-bar/src/Components.tsx b/packages/@uppy/status-bar/src/Components.tsx
index 03b4feaf7..3361fe1cb 100644
--- a/packages/@uppy/status-bar/src/Components.tsx
+++ b/packages/@uppy/status-bar/src/Components.tsx
@@ -456,7 +456,6 @@ function ProgressBarComplete(props: ProgressBarCompleteProps) {
   return (
     <div
       className="uppy-StatusBar-content"
-      // biome-ignore lint/a11y/useSemanticElements: ...
       role="status"
       title={i18n('complete')}
     >
@@ -531,16 +530,17 @@ function ProgressBarError(props: ProgressBarErrorProps) {
     </div>
   )
 }
+
 export {
-  UploadBtn,
-  RetryBtn,
   CancelBtn,
-  PauseResumeButton,
   DoneBtn,
   LoadingSpinner,
-  ProgressDetails,
-  ProgressBarProcessing,
-  ProgressBarError,
-  ProgressBarUploading,
+  PauseResumeButton,
   ProgressBarComplete,
+  ProgressBarError,
+  ProgressBarProcessing,
+  ProgressBarUploading,
+  ProgressDetails,
+  RetryBtn,
+  UploadBtn,
 }
diff --git a/packages/@uppy/thumbnail-generator/src/index.ts b/packages/@uppy/thumbnail-generator/src/index.ts
index 3492c7d78..a97efc2c4 100644
--- a/packages/@uppy/thumbnail-generator/src/index.ts
+++ b/packages/@uppy/thumbnail-generator/src/index.ts
@@ -2,7 +2,7 @@ import type { DefinePluginOpts, UIPluginOptions, Uppy } from '@uppy/core'
 import { UIPlugin } from '@uppy/core'
 import type { Body, LocalUppyFile, Meta, UppyFile } from '@uppy/utils'
 import { dataURItoBlob, isObjectURL, isPreviewSupported } from '@uppy/utils'
-// @ts-ignore untyped
+// @ts-expect-error untyped
 import { rotation } from 'exifr/dist/mini.esm.mjs'
 import packageJson from '../package.json' with { type: 'json' }
 import locale from './locale.js'
diff --git a/packages/@uppy/transloadit/src/Assembly.ts b/packages/@uppy/transloadit/src/Assembly.ts
index d98900ac1..d93ee17e2 100644
--- a/packages/@uppy/transloadit/src/Assembly.ts
+++ b/packages/@uppy/transloadit/src/Assembly.ts
@@ -1,4 +1,3 @@
-// @ts-ignore untyped
 import type { RateLimitedQueue, WrapPromiseFunctionType } from '@uppy/utils'
 import {
   fetchWithNetworkError,
@@ -299,9 +298,7 @@ class TransloaditAssembly extends Emitter {
         const prevResults = prevResultsMap[stepName] ?? []
 
         nextResults
-          .filter(
-            (n) => !prevResults || !prevResults.some((p) => p.id === n.id),
-          )
+          .filter((n) => !prevResults?.some((p) => p.id === n.id))
           .forEach((result) => {
             this.emit('result', stepName, result)
           })
diff --git a/packages/@uppy/transloadit/src/AssemblyWatcher.ts b/packages/@uppy/transloadit/src/AssemblyWatcher.ts
index e3f744f1c..8725dd301 100644
--- a/packages/@uppy/transloadit/src/AssemblyWatcher.ts
+++ b/packages/@uppy/transloadit/src/AssemblyWatcher.ts
@@ -22,6 +22,7 @@ class TransloaditAssemblyWatcher<
 
   #resolve!: () => void
 
+  // biome-ignore lint/correctness/noUnusedPrivateClassMembers: assigned in constructor, may be needed for future error handling
   #reject!: (reason?: string) => void
 
   #uppy
diff --git a/packages/@uppy/transloadit/src/index.ts b/packages/@uppy/transloadit/src/index.ts
index 326981b6c..cbdfbe921 100644
--- a/packages/@uppy/transloadit/src/index.ts
+++ b/packages/@uppy/transloadit/src/index.ts
@@ -110,7 +110,6 @@ type PersistentState = {
 }
 
 declare module '@uppy/core' {
-  // biome-ignore lint/correctness/noUnusedVariables: must be defined
   export interface UppyEventMap<M extends Meta, B extends Body> {
     // We're also overriding the `restored` event as it is now populated with Transloadit state.
     restored: (pluginData: Record<string, PersistentState>) => void
@@ -191,7 +190,7 @@ function validateParams(params?: AssemblyOptions['params']): void {
     parsed = params
   }
 
-  if (!parsed.auth || !parsed.auth.key) {
+  if (!parsed.auth?.key) {
     throw new Error(
       'Transloadit: The `params.auth.key` option is required. ' +
         'You can find your Transloadit API key at https://transloadit.com/c/template-credentials',
@@ -486,7 +485,9 @@ export default class Transloadit<
       // re-use the old one. See: https://github.com/transloadit/uppy/issues/4412
       // and `onReceiveUploadUrl` in @uppy/tus
       const files = { ...this.uppy.getState().files }
-      filesFromAssembly.forEach((file) => delete files[file.id].tus)
+      filesFromAssembly.forEach((file) => {
+        delete files[file.id].tus
+      })
       this.uppy.setState({ files })
 
       this.uppy.emit('error', error)
@@ -1083,11 +1084,9 @@ export default class Transloadit<
   }
 }
 
-export { COMPANION_URL, COMPANION_ALLOWED_HOSTS }
-
 // Re-export type from @transloadit/types so callers can import it from the plugin package.
 export type { AssemblyInstructionsInput } from '@transloadit/types'
-
 // Low-level classes for advanced usage (e.g., creating assemblies without file uploads)
 export { default as Assembly } from './Assembly.js'
 export { AssemblyError, default as Client } from './Client.js'
+export { COMPANION_ALLOWED_HOSTS, COMPANION_URL }
diff --git a/packages/@uppy/tus/src/index.ts b/packages/@uppy/tus/src/index.ts
index 95cf1bb19..7eb00ebe7 100644
--- a/packages/@uppy/tus/src/index.ts
+++ b/packages/@uppy/tus/src/index.ts
@@ -222,9 +222,7 @@ export default class Tus<M extends Meta, B extends Body> extends BasePlugin<
     // Create a new tus upload
     return new Promise<tus.Upload | string>((resolve, reject) => {
       let queuedRequest: ReturnType<RateLimitedQueue['run']>
-      // biome-ignore lint/style/useConst: ...
       let qRequest: () => () => void
-      // biome-ignore lint/style/useConst: ...
       let upload: tus.Upload
 
       const opts = {
diff --git a/packages/@uppy/utils/src/Translator.ts b/packages/@uppy/utils/src/Translator.ts
index c43afbd01..b84ce01ec 100644
--- a/packages/@uppy/utils/src/Translator.ts
+++ b/packages/@uppy/utils/src/Translator.ts
@@ -34,10 +34,11 @@ function insertReplacement(
     // can be JSX objects and will be otherwise incorrectly turned into strings.
     // Without this condition we’d get this: [object Object] hello [object Object] my <button>
     if (typeof chunk !== 'string') {
-      return newParts.push(chunk)
+      newParts.push(chunk)
+      return
     }
 
-    return rx[Symbol.split](chunk).forEach((raw, i, list) => {
+    rx[Symbol.split](chunk).forEach((raw, i, list) => {
       if (raw !== '') {
         newParts.push(raw)
       }
diff --git a/packages/@uppy/webcam/src/Webcam.test.ts b/packages/@uppy/webcam/src/Webcam.test.ts
index b181f91ec..ccf67256c 100644
--- a/packages/@uppy/webcam/src/Webcam.test.ts
+++ b/packages/@uppy/webcam/src/Webcam.test.ts
@@ -5,7 +5,7 @@ import Webcam from './index.js'
 describe('Webcam', () => {
   describe('_getMediaRecorderOptions', () => {
     it('should not have a mimeType set if no preferences given', () => {
-      // @ts-ignore
+      // @ts-expect-error
       globalThis.MediaRecorder = {
         isTypeSupported: () => true,
       }
@@ -17,7 +17,7 @@ describe('Webcam', () => {
     })
 
     it('should use preferredVideoMimeType', () => {
-      // @ts-ignore
+      // @ts-expect-error
       globalThis.MediaRecorder = {
         isTypeSupported: (ty) => ty === 'video/webm',
       }
@@ -31,7 +31,7 @@ describe('Webcam', () => {
     })
 
     it('should not use preferredVideoMimeType if it is not supported', () => {
-      // @ts-ignore
+      // @ts-expect-error
       globalThis.MediaRecorder = {
         isTypeSupported: (ty) => ty === 'video/webm',
       }
@@ -45,7 +45,7 @@ describe('Webcam', () => {
     })
 
     it('should pick type based on `allowedFileTypes`', () => {
-      // @ts-ignore
+      // @ts-expect-error
       globalThis.MediaRecorder = {
         isTypeSupported: () => true,
       }
@@ -59,7 +59,7 @@ describe('Webcam', () => {
     })
 
     it('should use first supported type from allowedFileTypes', () => {
-      // @ts-ignore
+      // @ts-expect-error
       globalThis.MediaRecorder = {
         isTypeSupported: (ty) => ty === 'video/webm',
       }
@@ -73,7 +73,7 @@ describe('Webcam', () => {
     })
 
     it('should prefer preferredVideoMimeType over allowedFileTypes', () => {
-      // @ts-ignore
+      // @ts-expect-error
       globalThis.MediaRecorder = {
         isTypeSupported: () => true,
       }
@@ -89,7 +89,7 @@ describe('Webcam', () => {
     })
 
     it('should not use allowedFileTypes if they are unsupported', () => {
-      // @ts-ignore
+      // @ts-expect-error
       globalThis.MediaRecorder = {
         isTypeSupported: () => false,
       }
diff --git a/packages/@uppy/webcam/src/Webcam.tsx b/packages/@uppy/webcam/src/Webcam.tsx
index 54ed86759..dc2a7860a 100644
--- a/packages/@uppy/webcam/src/Webcam.tsx
+++ b/packages/@uppy/webcam/src/Webcam.tsx
@@ -311,7 +311,7 @@ export default class Webcam<M extends Meta, B extends Body> extends UIPlugin<
             ? stream.getAudioTracks()
             : stream.getVideoTracks()
 
-          if (!options || !options.deviceId) {
+          if (!options?.deviceId) {
             currentDeviceId = tracks[0].getSettings().deviceId
           } else {
             tracks.forEach((track) => {
@@ -519,7 +519,9 @@ export default class Webcam<M extends Meta, B extends Body> extends UIPlugin<
       const audioTracks = this.stream.getAudioTracks()
       const videoTracks = this.stream.getVideoTracks()
 
-      audioTracks.concat(videoTracks).forEach((track) => track.stop())
+      audioTracks.concat(videoTracks).forEach((track) => {
+        track.stop()
+      })
     }
 
     if (this.recorder) {
diff --git a/packages/@uppy/webcam/src/supportsMediaRecorder.test.ts b/packages/@uppy/webcam/src/supportsMediaRecorder.test.ts
index 4ed5d4e1e..0a063dbca 100644
--- a/packages/@uppy/webcam/src/supportsMediaRecorder.test.ts
+++ b/packages/@uppy/webcam/src/supportsMediaRecorder.test.ts
@@ -3,7 +3,7 @@ import supportsMediaRecorder from './supportsMediaRecorder.js'
 
 describe('supportsMediaRecorder', () => {
   it('should return true if MediaRecorder is supported', () => {
-    // @ts-ignore
+    // @ts-expect-error
     globalThis.MediaRecorder = class MediaRecorder {
       start() {}
     }
@@ -11,15 +11,15 @@ describe('supportsMediaRecorder', () => {
   })
 
   it('should return false if MediaRecorder is not supported', () => {
-    // @ts-ignore
+    // @ts-expect-error
     globalThis.MediaRecorder = undefined
     expect(supportsMediaRecorder()).toEqual(false)
 
-    // @ts-ignore
+    // @ts-expect-error
     globalThis.MediaRecorder = class MediaRecorder {}
     expect(supportsMediaRecorder()).toEqual(false)
 
-    // @ts-ignore
+    // @ts-expect-error
     globalThis.MediaRecorder = class MediaRecorder {
       foo() {}
     }
diff --git a/packages/@uppy/xhr-upload/src/index.ts b/packages/@uppy/xhr-upload/src/index.ts
index 46058ed60..4427b7907 100644
--- a/packages/@uppy/xhr-upload/src/index.ts
+++ b/packages/@uppy/xhr-upload/src/index.ts
@@ -331,7 +331,9 @@ export default class XHRUpload<
       if (Array.isArray(value)) {
         // In this case we don't transform `item` to add brackets, it's up to
         // the user to add the brackets so it won't be overridden.
-        value.forEach((subItem) => formData.append(item, subItem))
+        value.forEach((subItem) => {
+          formData.append(item, subItem)
+        })
       } else {
         formData.append(item, value as string)
       }
diff --git a/private/dev/dragdrop.html b/private/dev/dragdrop.html
index 003d9fd79..e0d7d40eb 100644
--- a/private/dev/dragdrop.html
+++ b/private/dev/dragdrop.html
@@ -1,5 +1,5 @@
 <!doctype html>
-<html>
+<html lang="en">
   <head>
     <meta charset="utf-8" />
     <meta name="viewport" content="width=device-width, initial-scale=1" />
diff --git a/private/dev/index.html b/private/dev/index.html
index c22ebd63a..27931312c 100644
--- a/private/dev/index.html
+++ b/private/dev/index.html
@@ -1,5 +1,5 @@
 <!doctype html>
-<html>
+<html lang="en">
   <head>
     <meta charset="utf-8" />
     <meta name="viewport" content="width=device-width, initial-scale=1" />
diff --git a/yarn.lock b/yarn.lock
index ed9ffa303..b40d0901a 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -2970,18 +2970,18 @@ __metadata:
   languageName: node
   linkType: hard
 
-"@biomejs/biome@npm:2.0.5":
-  version: 2.0.5
-  resolution: "@biomejs/biome@npm:2.0.5"
+"@biomejs/biome@npm:2.4.15":
+  version: 2.4.15
+  resolution: "@biomejs/biome@npm:2.4.15"
   dependencies:
-    "@biomejs/cli-darwin-arm64": "npm:2.0.5"
-    "@biomejs/cli-darwin-x64": "npm:2.0.5"
-    "@biomejs/cli-linux-arm64": "npm:2.0.5"
-    "@biomejs/cli-linux-arm64-musl": "npm:2.0.5"
-    "@biomejs/cli-linux-x64": "npm:2.0.5"
-    "@biomejs/cli-linux-x64-musl": "npm:2.0.5"
-    "@biomejs/cli-win32-arm64": "npm:2.0.5"
-    "@biomejs/cli-win32-x64": "npm:2.0.5"
+    "@biomejs/cli-darwin-arm64": "npm:2.4.15"
+    "@biomejs/cli-darwin-x64": "npm:2.4.15"
+    "@biomejs/cli-linux-arm64": "npm:2.4.15"
+    "@biomejs/cli-linux-arm64-musl": "npm:2.4.15"
+    "@biomejs/cli-linux-x64": "npm:2.4.15"
+    "@biomejs/cli-linux-x64-musl": "npm:2.4.15"
+    "@biomejs/cli-win32-arm64": "npm:2.4.15"
+    "@biomejs/cli-win32-x64": "npm:2.4.15"
   dependenciesMeta:
     "@biomejs/cli-darwin-arm64":
       optional: true
@@ -3001,62 +3001,62 @@ __metadata:
       optional: true
   bin:
     biome: bin/biome
-  checksum: 10/13ad6e67783e3831d09cb0cbcfbe4d93bf21da851b1159d0376dbe8ac6426f0c426674793d0b08726b1ccfef87d4b8172ad3195511d96a074ef11007ff53071a
+  checksum: 10/1b48c62fb4d26de515599cfd3ab51fae16aa0b93e686e496ffc837d3a59887898b4a21d6653ae1a90751f52ae120078f0f998e370e35fa4af9faa3febd3d6e14
   languageName: node
   linkType: hard
 
-"@biomejs/cli-darwin-arm64@npm:2.0.5":
-  version: 2.0.5
-  resolution: "@biomejs/cli-darwin-arm64@npm:2.0.5"
+"@biomejs/cli-darwin-arm64@npm:2.4.15":
+  version: 2.4.15
+  resolution: "@biomejs/cli-darwin-arm64@npm:2.4.15"
   conditions: os=darwin & cpu=arm64
   languageName: node
   linkType: hard
 
-"@biomejs/cli-darwin-x64@npm:2.0.5":
-  version: 2.0.5
-  resolution: "@biomejs/cli-darwin-x64@npm:2.0.5"
+"@biomejs/cli-darwin-x64@npm:2.4.15":
+  version: 2.4.15
+  resolution: "@biomejs/cli-darwin-x64@npm:2.4.15"
   conditions: os=darwin & cpu=x64
   languageName: node
   linkType: hard
 
-"@biomejs/cli-linux-arm64-musl@npm:2.0.5":
-  version: 2.0.5
-  resolution: "@biomejs/cli-linux-arm64-musl@npm:2.0.5"
+"@biomejs/cli-linux-arm64-musl@npm:2.4.15":
+  version: 2.4.15
+  resolution: "@biomejs/cli-linux-arm64-musl@npm:2.4.15"
   conditions: os=linux & cpu=arm64 & libc=musl
   languageName: node
   linkType: hard
 
-"@biomejs/cli-linux-arm64@npm:2.0.5":
-  version: 2.0.5
-  resolution: "@biomejs/cli-linux-arm64@npm:2.0.5"
+"@biomejs/cli-linux-arm64@npm:2.4.15":
+  version: 2.4.15
+  resolution: "@biomejs/cli-linux-arm64@npm:2.4.15"
   conditions: os=linux & cpu=arm64 & libc=glibc
   languageName: node
   linkType: hard
 
-"@biomejs/cli-linux-x64-musl@npm:2.0.5":
-  version: 2.0.5
-  resolution: "@biomejs/cli-linux-x64-musl@npm:2.0.5"
+"@biomejs/cli-linux-x64-musl@npm:2.4.15":
+  version: 2.4.15
+  resolution: "@biomejs/cli-linux-x64-musl@npm:2.4.15"
   conditions: os=linux & cpu=x64 & libc=musl
   languageName: node
   linkType: hard
 
-"@biomejs/cli-linux-x64@npm:2.0.5":
-  version: 2.0.5
-  resolution: "@biomejs/cli-linux-x64@npm:2.0.5"
+"@biomejs/cli-linux-x64@npm:2.4.15":
+  version: 2.4.15
+  resolution: "@biomejs/cli-linux-x64@npm:2.4.15"
   conditions: os=linux & cpu=x64 & libc=glibc
   languageName: node
   linkType: hard
 
-"@biomejs/cli-win32-arm64@npm:2.0.5":
-  version: 2.0.5
-  resolution: "@biomejs/cli-win32-arm64@npm:2.0.5"
+"@biomejs/cli-win32-arm64@npm:2.4.15":
+  version: 2.4.15
+  resolution: "@biomejs/cli-win32-arm64@npm:2.4.15"
   conditions: os=win32 & cpu=arm64
   languageName: node
   linkType: hard
 
-"@biomejs/cli-win32-x64@npm:2.0.5":
-  version: 2.0.5
-  resolution: "@biomejs/cli-win32-x64@npm:2.0.5"
+"@biomejs/cli-win32-x64@npm:2.4.15":
+  version: 2.4.15
+  resolution: "@biomejs/cli-win32-x64@npm:2.4.15"
   conditions: os=win32 & cpu=x64
   languageName: node
   linkType: hard
@@ -8399,7 +8399,7 @@ __metadata:
   version: 0.0.0-use.local
   resolution: "@uppy-dev/build@workspace:."
   dependencies:
-    "@biomejs/biome": "npm:2.0.5"
+    "@biomejs/biome": "npm:2.4.15"
     "@changesets/changelog-github": "npm:^0.5.1"
     "@changesets/cli": "patch:@changesets/cli@npm%3A2.29.5#~/.yarn/patches/@changesets-cli-npm-2.29.5-68d8030bf3.patch"
     npm-run-all: "npm:^4.1.5"