Nix: move patch-package to devDependencies, drop usage of npx, drop patchPhase

flake.nix

@@ -43,22 +43,16 @@
               license = licenses.agpl3Plus;
               platforms = platforms.all;
               mainProgram = "start-bundle";
+              maintainers = with maintainers; [ RorySys ]; # lol.
             };
 
             src = ./.;
-            nativeBuildInputs = with pkgs; [
-              python3
-              nodePackages.patch-package
-              jq
-            ];
             npmDepsHash = hashesFile.npmDepsHash;
             npmBuildScript = "build:src";
             makeCacheWritable = true;
-            postPatch = ''
-              echo "Patching postinstall to use OS-provided patch-package"
-              jq -r '.scripts["postinstall"] = "patch-package"' package.json > package.tmp.json
-              mv package.tmp.json package.json
-            '';
+            nativeBuildInputs = with pkgs; [
+              python3
+            ];
             installPhase = ''
               runHook preInstall
               # set -x
@@ -118,7 +112,7 @@
 
         containers.docker = pkgs.dockerTools.buildLayeredImage {
           name = "spacebar-server-ts";
-          tag = "latest";
+          tag = self.packages.${system}.default.version;
           contents = [ self.packages.${system}.default ];
           config = {
             Cmd = [ "${self.outputs.packages.${system}.default}/bin/start-bundle" ];
@@ -145,6 +139,7 @@
         pkgs.lib.recursiveUpdate (pkgs.lib.attrsets.unionOfDisjoint { } self.packages) {
           x86_64-linux = {
             spacebar-server-tests = self.packages.x86_64-linux.default.passthru.tests;
+            docker-image = self.containers.x86_64-linux.docker;
           };
         };
     };

hashes.json

@@ -1,3 +1,3 @@
 {
-  "npmDepsHash": "sha256-45XGoErD/Lm0QunatMHZnUtrlpcmYmlwUyUGhwjrBHU="
+  "npmDepsHash": "sha256-v3RAXTGnVkLK2KpQLHfT9BBh27L9f/N9F1MMAUghkV4="
 }

package.json

@@ -4,7 +4,7 @@
 	"description": "A Spacebar server written in Node.js",
 	"scripts": {
 		"prepare": "husky install",
-		"postinstall": "npx patch-package",
+		"postinstall": "patch-package",
 		"start": "node --enable-source-maps dist/bundle/start.js",
 		"start:api": "node --enable-source-maps dist/api/start.js",
 		"start:cdn": "node --enable-source-maps dist/cdn/start.js",
@@ -65,6 +65,7 @@
 		"eslint": "^9.39.1",
 		"globals": "^16.5.0",
 		"husky": "^9.1.7",
+		"patch-package": "^8.0.1",
 		"prettier": "^3.6.2",
 		"pretty-quick": "^4.2.2",
 		"ts-node": "^10.9.2",