[mattwad]

So, if I'm using URLs for dependencies, effectively I can't code while I'm offline? I know it's not the norm, but there have been plenty of times I needed to work without internet.

[whstl]

No. Deno supports vendoring, caching and locking of dependencies just like other ecosystem.

They are not fetched every time you run the app.

[schemescape]

I’m fairly certain Deno caches the downloaded artifacts locally. There’s also tooling for downloading all dependencies:

https://deno.land/manual@v1.29.1/tools/vendor