I found the reason, it's because of this:
https://github.com/NixOS/flake-registry?tab=readme-ov-file#flake-inputs
Looks like it's available for every nix flake users officially and one can implicitly turn it off by configuring the registry options I guess.
But it's suggested to add inputs explicitly, since u might change ur registry later in ur configs in future.
Unexpected learningš¤
Thanks for pointing out this
@justdude
I didn't even notice. LoL.
#nix #flake #flakes #nixflakes #nixregistry #nixconfig #config