Just use Python. It'll be okay.

cmd/playlist/main.go

@@ -1,12 +0,0 @@
-package main
-
-import (
-	"log"
-	"net/http"
-)
-
-func main() {
-	listen := ":8080"
-	log.Println("Listening on", listen)
-	log.Fatal(http.ListenAndServe(listen, http.FileServer(http.Dir("."))))
-}

go.mod

@@ -1,3 +0,0 @@
-module woozle.org/neale/playlist
-
-go 1.18

run.sh

@@ -0,0 +1,4 @@
+#! /bin/sh
+
+cd $(dirname $0)
+python3 -m http.server