I don’t know if it’s just because I hopped on the bandwagon in the past few months, but it really is starting to feel like Nix is gaining momentum.

You can use it on Mac, WSL, Ubuntu multiuser, Docker, in an nspawn container, or through NixOS on a drive. You can build a livecd iso or a Raspberry Pi image from the same flake that you use for everything else.

I work in embedded with Yocto every day, and I can’t help but think that Nix is going to eat their lunch in the next decade.

There’s really never been anything (usable) that’s like Nix. I think it’s inevitable that it takes over everything.

Not tried that but I've heard it's even possible to build custom Android distros.

samueldr has been doing a lot of good work in that direction. See https://mobile.nixos.org/ and https://github.com/samueldr/

- https://github.com/danielfullmer/robotnix/

This is different from a non-Android Linux on Mobile devices, which is what Mobile NixOS aims to achieve :).