I wanted to see what the differences between asdf and nix were, and found a pretty lengthy article[1] that explained it quite well in the first few paragraphs. asdf is better than nothing, and better than multiple version managers for each language in one project, but it is a far cry from the portability and reliability of nix.

If you wanna do something quickly to ease the pain of version management, asdf is there, helpful, and ergonomic. But if you want to make version management an issue of the past and fix it for good, nix is the way to go.

So they both have their use. nix just feels more proper.