Yeah, I switched completely to nix after being frustrated with homebrew constantly breaking things (any time I installed something. (Usually involving libicu being replaced with a different version.) And then had to pick up homebrew again for a couple of things.

I _really_ like being able to drop into a shell with a few additional packages installed. But nix does have a learning curve and some rough edges. I found it tricky to use things like libraries outside of nix's build process. And there is a bit of an impedance mismatch when trying to use languages that have their own package management.

So I've got nix for a bunch of software, a couple of libraries in homebrew, and native package management for various languages (cargo, ghcup, lake, idris).

I also reluctantly installed agda via homebrew because I can't get it to build. (Haskell mostly works on M1).