I was thinking, watching the video "Ryan should fork it, or start over"... until he revealed it: https://github.com/ry/deno :)
My head can't wrap itself around: import { test } from " https://unpkg.com/deno_testing@0.0.5/testing.ts" There is so many issues with that I don't even no where to begin.
For libraries or professional projects, ship your dependencies or use a build system. But for one-off projects, being able to pull in a utility library without needing any tool but the interpreter you're using or some extra build step seems like a big win.