I think they auto install some binaries like nodejs that are required for baseline functionality, but have a popup window for additional language LSPs

Private equity

I don’t see your point? Nodejs is installed in a custom directory and not added to PATH. It is used by Zed for providing npm support for extensions, and other things. I’m not a Zed developer so I don’t know exactly.

It doesn’t prevent you from using deno or bun in any way.

It has those as well

Nobody is arguing that you should never depend on anything and create everything yourself, but adding a dependency for literally a one liner function is awful. Like one of the Go proverbs goes, a little copying is better than a little dependency.