> Committing node_modules guarantees that the app works even if the NPM registry were to implode. Try to deploy your deno thing from a cold state (e.g. maybe you're moving to a different AWS region or a different provider or whatever) while there's a deno.land outage and it will blow up

You can just move your DENO_DIR (cache) along with the rest of your code the same way you can move your node_modules folder.

See: https://deno.land/manual/linking_to_external_code