fix: remove kiwix-tools patch & improve nixpatches sub-flake UX

flake.lock

@@ -56,11 +56,12 @@
       "inputs": {
         "nixpkgs": [
           "nixpkgs-unpatched"
-        ]
+        ],
+        "patches": []
       },
       "locked": {
         "lastModified": 1,
-        "narHash": "sha256-FaeqnQPm3MIXkQsNsGTB4A9lN82YKpLkmVHgdJyJNGg=",
+        "narHash": "sha256-9froWbTkSKX7cYSb0wh58TsftbHL0bNHay1yAW0Wiws=",
         "path": "nixpatches",
         "type": "path"
       },

flake.nix

@@ -26,6 +26,9 @@
     nixpkgs = {
       url = "path:nixpatches";
       inputs.nixpkgs.follows = "nixpkgs-unpatched";
+      # XXX: `path:` urls have poor UX in that they still get "locked" and require manual updates as if they were remote.
+      # by linking back to ourselves here, we can update `nixpatches/list.nix` *without* having to run `nix flake update` afterward.
+      inputs.patches.follows = "";
     };
     mobile-nixos = {
       # <https://github.com/nixos/mobile-nixos>
@@ -183,6 +186,9 @@
           description = "python environment for data processing";
         };
       };
+
+      # unofficial output; used by inputs.nixpatches
+      nixpatches = import ./nixpatches/list.nix;
     };
 }
 

nixpatches/flake.nix

@@ -1,13 +1,14 @@
 {
   inputs = {
-    nixpkgs.url = "nixpkgs/nixos-22.11";
+    nixpkgs = {};
+    patches = {};
   };
-  outputs = { self, nixpkgs }:
+  outputs = { self, nixpkgs, patches }@inputs:
     let
       patchedPkgsFor = system: nixpkgs.legacyPackages.${system}.applyPatches {
         name = "nixpkgs-patched-uninsane";
         src = nixpkgs;
-        patches = import ./list.nix {
+        patches = inputs.patches.nixpatches {
           inherit (nixpkgs.legacyPackages.${system}) fetchpatch;
           inherit (nixpkgs.lib) fakeHash;
         };

nixpatches/list.nix

@@ -13,12 +13,6 @@
     sha256 = "sha256-t4sG+xLDaxbJ/mV5G18N4ag8EC3IXPgtN5FJGANh1Dc=";
   })
 
-  # kiwix-tools: init at 3.4.0
-  (fetchpatch {
-    url = "https://github.com/NixOS/nixpkgs/pull/206254.diff";
-    sha256 = "sha256-Cendm7a23qj/YRBj5qVM8jhl9oTpztaDEkXcSG4dJys=";
-  })
-
   # whalebird: 4.6.5 -> 4.7.4
   (fetchpatch {
     # url = "https://git.uninsane.org/colin/nixpkgs/compare/master...pr.whalebird-4.7.4.diff";