Ask HN: What is the JavaScript ecosystem missing right now?

A good code coverage tool? well if anyone here knows one...feel free to share :) (testing frameworks as well,I know some but for the purpose of getting info from you guys would be great)

Native tools that don't rely on node and electron. If javascript on the desktop is going to be an eventuality then pygtk would be a much better direction.

If browsers offered an "open in a chromeless window" mode that could be called by other apps, then Electron apps wouldn't need to bundle the own browser.

We could then have downloadable apps with sizes of a few MB instead of the >100 MB monstrosities it generates now.

A smaller ecosystem.