diff --git a/experiments/skin-database/addSkin.ts b/experiments/skin-database/addSkin.ts
index 94516b03..151edea0 100644
--- a/experiments/skin-database/addSkin.ts
+++ b/experiments/skin-database/addSkin.ts
@@ -1,10 +1,10 @@
 import * as Skins from "./data/skins";
 import fs from "fs";
 import md5Buffer from "md5";
-import S3 from "./s3";
+import * as S3 from "./s3";
 import Shooter from "./shooter";
 import _temp from "temp";
-import Analyser from "./analyser";
+import * as Analyser from "./analyser";
 
 const temp = _temp.track();
 
diff --git a/experiments/skin-database/analyser.js b/experiments/skin-database/analyser.ts
similarity index 72%
rename from experiments/skin-database/analyser.js
rename to experiments/skin-database/analyser.ts
index c1529ad9..7e5ef440 100644
--- a/experiments/skin-database/analyser.js
+++ b/experiments/skin-database/analyser.ts
@@ -1,9 +1,9 @@
 // Functions for deriving information from skins
 
-const exec = require("child_process").exec;
-const shellescape = require("shell-escape");
+import { exec } from "child_process";
+import shellescape from "shell-escape";
 
-function getColor(imgPath) {
+export function getColor(imgPath: string): Promise<string> {
   return new Promise((resolve, reject) => {
     const excapedImgPath = shellescape([imgPath]);
     const command = `convert ${excapedImgPath} -scale 1x1\! -format '%[pixel:u]' info:-`;
@@ -16,5 +16,3 @@ function getColor(imgPath) {
     });
   });
 }
-
-module.exports = { getColor };
diff --git a/experiments/skin-database/data/skins.ts b/experiments/skin-database/data/skins.ts
index 5c9b58d0..da3809e7 100644
--- a/experiments/skin-database/data/skins.ts
+++ b/experiments/skin-database/data/skins.ts
@@ -1,44 +1,11 @@
 import db from "../db";
 import path from "path";
-import S3 from "../s3";
+import * as S3 from "../s3";
 import logger from "../logger";
+import { DBSkinRecord, SkinRecord, DBIARecord, TweetStatus } from "../types";
 const skins = db.get("skins");
 const iaItems = db.get("internetArchiveItems");
 
-type TweetStatus = "APPROVED" | "REJECTED" | "TWEETED" | "UNREVIEWED";
-
-type DBSkinRecord = {
-  md5: string;
-  averageColor?: string;
-  emails?: string[];
-  tweetUrl?: string;
-  twitterLikes?: number;
-  readmeText?: string;
-  filePaths: string[];
-  imageHash?: string;
-  uploader?: string;
-};
-
-type DBIARecord = {
-  identifier: string;
-};
-
-type SkinRecord = {
-  md5: string;
-  averageColor?: string;
-  emails?: string[];
-  tweetUrl?: string;
-  twitterLikes?: number;
-  readmeText?: string;
-  fileNames: string[];
-  imageHash?: string;
-  uploader?: string;
-  screenshotUrl: string;
-  skinUrl: string;
-  canonicalFilename: string | null;
-  webampUrl: string;
-};
-
 const TWEETABLE_QUERY = {
   tweeted: { $ne: true },
   approved: true,
@@ -240,7 +207,10 @@ async function getSkinToReview(): Promise<{
   return { filename: canonicalFilename, md5 };
 }
 
-async function getSkinToTweet() {
+async function getSkinToTweet(): Promise<{
+  filename: string | null;
+  md5: string;
+} | null> {
   const tweetables = await skins.aggregate([
     { $match: TWEETABLE_QUERY },
     { $sample: { size: 1 } },
@@ -289,6 +259,7 @@ async function setImageHash(md5: string, imageHash: string): Promise<void> {
   await skins.findOneAndUpdate({ md5 }, { $set: { imageHash } });
 }
 
+// Deprecated. Use module exports
 module.exports = {
   addSkin,
   getMd5sMatchingImageHash,
diff --git a/experiments/skin-database/discord-bot/commands/approve.js b/experiments/skin-database/discord-bot/commands/approve.ts
similarity index 71%
rename from experiments/skin-database/discord-bot/commands/approve.js
rename to experiments/skin-database/discord-bot/commands/approve.ts
index 2ab7fc83..595ed735 100644
--- a/experiments/skin-database/discord-bot/commands/approve.js
+++ b/experiments/skin-database/discord-bot/commands/approve.ts
@@ -1,8 +1,9 @@
+import { Message } from "discord.js";
 const { approve, getStatus } = require("../../data/skins");
 const Utils = require("../utils");
 const { TWEET_BOT_CHANNEL_ID } = require("../../config");
 
-async function handler(message, args) {
+async function handler(message: Message, args: [string]) {
   const [md5] = args;
   const status = await getStatus(md5);
   if (status !== "UNREVIEWED") {
@@ -11,6 +12,9 @@ async function handler(message, args) {
   }
   await approve(md5);
   const tweetBotChannel = message.client.channels.get(TWEET_BOT_CHANNEL_ID);
+  if (tweetBotChannel == null) {
+    throw new Error("Could not find tweet-bot channel");
+  }
   let filename = null;
   await Utils.postSkin({
     md5,
@@ -21,6 +25,10 @@ async function handler(message, args) {
     },
     dest: tweetBotChannel,
   });
+  if (tweetBotChannel.type !== "text") {
+    throw new Error("User tried to approve a skin from a non-text channel");
+  }
+  // TODO: Upgrade and see if types improve
   await tweetBotChannel.send(
     `${filename} was approved by ${message.author.username}`
   );
diff --git a/experiments/skin-database/discord-bot/commands/archive.js b/experiments/skin-database/discord-bot/commands/archive.ts
similarity index 92%
rename from experiments/skin-database/discord-bot/commands/archive.js
rename to experiments/skin-database/discord-bot/commands/archive.ts
index f425b373..fbecdd5d 100644
--- a/experiments/skin-database/discord-bot/commands/archive.js
+++ b/experiments/skin-database/discord-bot/commands/archive.ts
@@ -1,10 +1,11 @@
+import { Message } from "discord.js";
 const fetch = require("node-fetch");
 const Utils = require("../utils");
 const { addSkinFromBuffer } = require("../../addSkin");
 
-async function handler(message) {
+async function handler(message: Message) {
   const { attachments } = message;
-  if (attachments.length < 1) {
+  if (attachments.array().length < 1) {
     await message.channel.send("Could not archive. No attachment found.");
     return;
   }
diff --git a/experiments/skin-database/s3.js b/experiments/skin-database/s3.ts
similarity index 84%
rename from experiments/skin-database/s3.js
rename to experiments/skin-database/s3.ts
index 1be78a2e..0df04956 100644
--- a/experiments/skin-database/s3.js
+++ b/experiments/skin-database/s3.ts
@@ -1,9 +1,10 @@
-const AWS = require("aws-sdk");
+import AWS from "aws-sdk";
+
 AWS.config.update({ region: "us-west-2" });
 
 const s3 = new AWS.S3();
 
-function getFile(key) {
+function getFile(key: string): Promise<string> {
   return new Promise((resolve, rejectPromise) => {
     const bucketName = "winamp2-js-skins";
     s3.getObject({ Bucket: bucketName, Key: key }, (err, data) => {
@@ -11,13 +12,17 @@ function getFile(key) {
         rejectPromise(err);
         return;
       }
-      const body = Buffer.from(data.Body).toString("utf8");
+
+      const body = Buffer.from(
+        // @ts-ignore
+        data.Body
+      ).toString("utf8");
       resolve(body);
     });
   });
 }
 
-function putFile(key, body) {
+function putFile(key: string, body: string): Promise<void> {
   return new Promise((resolve, rejectPromise) => {
     const bucketName = "winamp2-js-skins";
     s3.putObject({ Bucket: bucketName, Key: key, Body: body }, (err) => {
@@ -30,13 +35,13 @@ function putFile(key, body) {
   });
 }
 
-function putSkin(md5, buffer) {
+export function putSkin(md5: string, buffer: Buffer): Promise<void> {
   return new Promise((resolve, rejectPromise) => {
     const bucketName = "webamp-uploaded-skins";
     const key = `skins/${md5}.wsz`;
     s3.putObject(
       { Bucket: bucketName, Key: key, Body: buffer, ACL: "public-read" },
-      err => {
+      (err) => {
         if (err) {
           rejectPromise(err);
           return;
@@ -48,13 +53,13 @@ function putSkin(md5, buffer) {
   });
 }
 
-function putScreenshot(md5, buffer) {
+export function putScreenshot(md5: string, buffer: Buffer): Promise<void> {
   return new Promise((resolve, rejectPromise) => {
     const bucketName = "webamp-uploaded-skins";
     const key = `screenshots/${md5}.png`;
     s3.putObject(
       { Bucket: bucketName, Key: key, Body: buffer, ACL: "public-read" },
-      err => {
+      (err) => {
         if (err) {
           rejectPromise(err);
           return;
@@ -66,22 +71,22 @@ function putScreenshot(md5, buffer) {
   });
 }
 
-function getLines(body) {
+function getLines(body: string): string[] {
   return body
     .trim()
     .split("\n")
     .map((line) => line.trim());
 }
 
-async function getAllApproved() {
+export async function getAllApproved(): Promise<string[]> {
   return getLines(await getFile("approved.txt"));
 }
 
-async function getAllRejected() {
+export async function getAllRejected(): Promise<string[]> {
   return getLines(await getFile("rejected.txt"));
 }
 
-async function getAllTweeted() {
+export async function getAllTweeted(): Promise<string[]> {
   return getLines(await getFile("tweeted.txt"));
 }
 
@@ -178,15 +183,15 @@ async function appendLine(key, line) {
   return putFile(key, newContent);
 }
 
-async function approve(md5) {
+export async function approve(md5: string): Promise<void> {
   return appendLine("approved.txt", md5);
 }
 
-async function reject(md5) {
+export async function reject(md5: string): Promise<void> {
   return appendLine("rejected.txt", md5);
 }
 
-async function markAsTweeted(md5) {
+export async function markAsTweeted(md5: string): Promise<void> {
   return appendLine("tweeted.txt", md5);
 }
 
diff --git a/experiments/skin-database/types.ts b/experiments/skin-database/types.ts
new file mode 100644
index 00000000..82049ea2
--- /dev/null
+++ b/experiments/skin-database/types.ts
@@ -0,0 +1,33 @@
+export type TweetStatus = "APPROVED" | "REJECTED" | "TWEETED" | "UNREVIEWED";
+
+export type DBSkinRecord = {
+  md5: string;
+  averageColor?: string;
+  emails?: string[];
+  tweetUrl?: string;
+  twitterLikes?: number;
+  readmeText?: string;
+  filePaths: string[];
+  imageHash?: string;
+  uploader?: string;
+};
+
+export type DBIARecord = {
+  identifier: string;
+};
+
+export type SkinRecord = {
+  md5: string;
+  averageColor?: string;
+  emails?: string[];
+  tweetUrl?: string;
+  twitterLikes?: number;
+  readmeText?: string;
+  fileNames: string[];
+  imageHash?: string;
+  uploader?: string;
+  screenshotUrl: string;
+  skinUrl: string;
+  canonicalFilename: string | null;
+  webampUrl: string;
+};