As a programmer, the moment I learned about nixos (here on lemmy, if I recall correctly) I knew that’d be the one I’d pick once I found the time to move to linux. It just seemed like a reasonable way of doing things, you know?

Bit of a learning curve, but worth it, I believe.

Add programs.firefox.enable = true; to configuration.nix.

Call sudo nixos-rebuild switch. Maybe add --flake if you’re feeling adventurous.

Done.

Or, more realistically…

programs = {
    firefox = {
        enable = true;
        # Configure anything you want here (language,
        # extensions, policies... whatever).
    };
    # Enable and configure other programs here.
};

… and keep the whole thing in a git repository to track changes and have it available for other machines.