Misc: Enable nix flakes

packages/default.nix

@@ -12,7 +12,7 @@ let
   };
   wrapInSandbox = pkgs.callPackage ./sandbox.nix {};
 in { 
-  key-mapper = pkgs.callPackage ./tools/games/key-mapper {};
+  #key-mapper = pkgs.callPackage ./tools/games/key-mapper {};
   vfio-isolate = pkgs.callPackage ./tools/virtualisation/vfio-isolate {};
   mopidy-funkwhale = pkgs.callPackage ./applications/audio/mopidy/funkwhale.nix {};
   # Not as clean as I hoped, but it works

packages/misc/video/anime4k/default.nix

@@ -1,14 +1,16 @@
-{ stdenv, lib }:
+{ stdenv, lib, fetchFromGitHub }:
 
 stdenv.mkDerivation rec {
   pname = "Anime4k";
-  version = "4.0.0-RC";
+  version = "4.0.1";
 
-  src = builtins.fetchGit {
-    url = "https://github.com/bloc97/Anime4K.git";
-    ref = "cb56502ed429a5a3e48ed62c5245d6445a209c7c";
+  src = fetchFromGitHub {
+    owner = "bloc97";
+    repo = "Anime4k";
+    rev = "v${version}";
+    sha256 = "1gc1ka9i7xzxq58175q5svhvp8vr27hy477r4z4nkhp9q1cqj19r";
   };
-
+  
   installPhase = ''
     find ./glsl/ -type f -iname '*.glsl' -exec install -Dm 644 {} -t $out/usr/share/shaders/ \;
   '';

packages/tools/games/key-mapper/default.nix

@@ -4,10 +4,12 @@
 , gtk3, gobject-introspection, git, gnome
 , wrapGAppsHook
 , makeDesktopItem
+, fetchFromGitHub
 }:
 
 python3Packages.buildPythonApplication rec {
   pname = "key-mapper";
+  # TODO: Update to 1.2.1
   version = "1.0.0";
 
   buildInputs = [ gobject-introspection gtk3 gnome.adwaita-icon-theme ];
@@ -16,9 +18,11 @@ python3Packages.buildPythonApplication rec {
 
   propagatedBuildInputs = with python3.pkgs; [ setuptools pydbus evdev pygobject3 ];
 
-  src = builtins.fetchGit {
-    url = "https://github.com/sezanzeb/key-mapper.git";
-    ref = version;
+  src = fetchFromGitHub {
+    owner = "sezanzeb";
+    repo = "key-mapper";
+    rev = version;
+    sha256 = "07dgp4vays1w4chhd22vlp9bxc49lcgzkvmjqgbr00m3781yjsf7";
   };
 
   doCheck = false;