Run in an empty directory to setup basic files:

deno run -Ar https://gitea.hptrow.me/SethTrowbridge/gale/raw/branch/master/scaffold.ts

deno task dev starts the dev server

deno task types scans the deno.json for type declaration files (be sure to then restart the Deno language server)

entry in the import map points to the starting file

If you delete the index.html, the dever server can still run using a default