You might like: https://nixery.dev/
e.g. if you want a Nix container with a shell environment, git, and htop:
docker run -ti nixery.dev/shell/git/htop bashe.g. if you want a Nix container with a shell environment, git, and htop:
docker run -ti nixery.dev/shell/git/htop bash
I think having mini images would be awesome.