Installing a fork of a package

Help
1

Hello everyone,

is there a way to install a fork of a package in the nixpkgs? i want to install a fork of pfetch but i cant find any resources how. does the fork need to be also a nix package? thank you so much in advance!

2

You can try using overlays like this:

nixpkgs.overlays = [
    (final: prev: {
      pfetch = prev.pfetch.overrideAttrs (oldAttrs: {
        src = prev.fetchFromGitHub {
          owner = "repo owner";
          repo = "pfetch repo name";
          rev = "pfetch rev";
          sha256 = "sha256-...";
        };
      });
    })
  ];

If you dont know the sha you can use lib.fakeSha256 in the sha attribute

sha256 = lib.sha256;

Then rebuild your system and wait for the error and it will display what sha it received then you copy that and replace that lib.sha256. Rebuild again after that. Hope this helps.