feat(nix-patches): Reimplement pkgs.applyPatches

It allows fetching patched-sources from cache and avoids idiotic
decisions made upstream

lib/nix-patches/default.nix

@@ -71,12 +71,31 @@ rec {
           src,
           name,
           patches ? mkPatches name,
-        }:
+          prePatch ? null,
-        pkgs.applyPatches {
+          postPatch ? null,
-          inherit patches src;
+          ...
+        }@args:
+        if patches == [ ] && prePatch == null && postPatch == null then
+          src
+        else
+          pkgs.stdenvNoCC.mkDerivation (
+            args
+            // {
+              name = "${name}-patched";
 
-          name = "${name}-patched";
+              inherit patches prePatch postPatch;
-        };
+
+              preferLocalBuild = true;
+              allowSubstitutes = true;
+              phases = [
+                "unpackPhase"
+                "patchPhase"
+                "installPhase"
+              ];
+
+              installPhase = "cp -R . $out";
+            }
+          );
 
       applyPatches' = name: src: applyPatches { inherit name src; };
     };