> In regards to the whole ecosystem: TC39 should take a look into adding a better standard library to JS itself, which would reduce the amount of one-liner packages.

I concur, the best part of working with Deno way back was its standard library [0] and overall complete dev environment. It is just so damn obvious that a runtime comes with an integrated test runner and assertion library.

0 - https://docs.deno.com/runtime/reference/std/