`nix --help`, `nix search --help`, ... will show a man page, but a look at source can't hurt, as there are a couple of rough corners with the `nix` command that

`nix --help`, `nix search --help`, ... will show a man page, but a look at source can't hurt, as there are a couple of rough corners with the `nix` command that can be rather confusing. For example `nix profile remove REGEX` will only match against the attribute part of the URL, which for Flakes is often just "defaultPackage.x86_64-linux", completely missing the name of the actual package, thus making it impossible to remove packages by name (using the index number will work). The source is pretty readable: https://github.com/NixOS/nix/tree/master/src/nix https://github.com/NixOS/nix/tree/master/src/nix