diff --git a/go/.vimrc b/go/.vimrc
index 3e8a4f8d7..485a70acb 100644
--- a/go/.vimrc
+++ b/go/.vimrc
@@ -1 +1,2 @@
+map \d :w<C-m>:!clear;echo Building ...; echo; build-go<C-m>
 map \f :w<C-m>:!clear;echo Building ...; echo; build; echo; main<C-m>
diff --git a/go/src/auxents/repl/prompt.go b/go/src/auxents/repl/prompt.go
index d75e843dc..bfb9f50e1 100644
--- a/go/src/auxents/repl/prompt.go
+++ b/go/src/auxents/repl/prompt.go
@@ -7,6 +7,7 @@ package repl
 import (
 	"fmt"
 	"os"
+	"runtime"
 
 	"golang.org/x/term"
 
@@ -40,7 +41,8 @@ func getPrompt2() string {
 
 func (this *Repl) printStartupBanner() {
 	if this.inputIsTerminal {
-		fmt.Printf("Miller %s\n", version.STRING) // TODO: inhibit if mlr repl -q
+		// TODO: inhibit if mlr repl -q
+		fmt.Printf("Miller %s for %s:%s:%s\n", version.STRING, runtime.GOOS, runtime.GOARCH, runtime.Version())
 		fmt.Printf("Type ':help' for on-line help; ':quit' to quit.\n")
 	}
 }