split zsh config into several nix files

overlay/tinyfetch/package.nix

@@ -1,38 +0,0 @@
-{
-  stdenv,
-  fetchFromGitHub,
-  lib,
-}:
-
-stdenv.mkDerivation {
-  pname = "tinyfetch";
-  version = "0.2";
-
-  src = fetchFromGitHub {
-    owner = "abrik1";
-    repo = "tinyfetch";
-    rev = "refs/tags/0.2";
-    hash = "sha256-nuC7Xtfg7rf6/IDhUKT2JZD9V0Hl/welNAFDJYJKwmA=";
-  };
-
-  buildPhase = ''
-    runHook preBuild
-    $CC src/tinyfetch.c -o tinyfetch
-    runHook postBuild
-  '';
-
-  installPhase = ''
-    runHook preInstall
-    install -Dm755 tinyfetch -t $out/bin
-    runHook postInstall
-  '';
-
-  meta = {
-    description = "Simple fetch in C which is tiny and fast";
-    homepage = "https://github.com/abrik1/tinyfetch";
-    license = lib.licenses.mit;
-    mainProgram = "tinyfetch";
-    maintainers = with lib.maintainers; [ pagedMov ];
-    platforms = lib.platforms.unix;
-  };
-}