[e12e]

> I don’t think it’s a good idea to simply replace rbenv/nvm/etc with asdf-ruby-plugin and so on

ASDF generally doesn't reinvent version management, but wrap and re-use ruby-build, node-build etc.

It fails if your single project is a legacy monster needing four versions of node, two pythons and a handful of javas - but that's not a common use case.

More commonly you have multiple projects, each with a single version of node, python and java. For deployment you only need one of each - it's in development you need five of each when switching between projects.