Thanks for putting this together. I'm very new to Deno but this seems like a version or pkgs issue?
error: Import 'https://deno.land/std@v0.50.0/fs/exists.ts' failed: 404 Not Found
at https://deno.land/x/plugin_prepare@v0.6.0/deps.ts:1:0
[E] [daem] app crashed - waiting for file changes before starting ...