finalPkgs: previousPkgs: {
  jjui = previousPkgs.jjui.overrideAttrs (previousAttrs: {
    version = "0-unstable";
    src = finalPkgs.fetchFromGitHub {
      owner = "idursun";
      repo = "jjui";
      rev = "f6cfdc287f970e58d9ac2bfb02f57e9d5ccd8e2d";
      hash = "sha256-LuYu3MlCDXbB3wzxS+6psi5W6SljyaZbK8taNdubYBU=";
    };
    vendorHash = "sha256-jte0g+aUiGNARLi8DyfsX6wYYJnodHnILzmid6KvMiA=";
  });
}