flake reorg, enable panic hook

flake.nix

@@ -1,46 +1,32 @@
 {
   inputs = {
-    nixpkgs.url = "nixpkgs/release-25.05";
-    utils.url = "github:numtide/flake-utils";
-    rust-overlay = {
-      url = "github:oxalica/rust-overlay";
+    nixpkgs.url = "nixpkgs/nixos-25.05";
+    flakelight = {
+      url = "github:nix-community/flakelight";
       inputs.nixpkgs.follows = "nixpkgs";
     };
+    mill-scale = {
+      url = "git+https://codeberg.org/icewind/mill-scale.git";
+      inputs.flakelight.follows = "flakelight";
+    };
   };
-
-  outputs = {
-    self,
-    nixpkgs,
-    utils,
-    rust-overlay,
-  }:
-    utils.lib.eachDefaultSystem (system: let
-      overlays = [
-        (import rust-overlay)
+  outputs = {mill-scale, ...}:
+    mill-scale ./. {
+      withOverlays = [
         (import ./nix/overlay.nix)
       ];
-      pkgs = import nixpkgs {
-        inherit system overlays;
-      };
-    in rec {
-      devShells.default = pkgs.mkShell {
-        nativeBuildInputs = with pkgs; [
-          cargo-edit
-          bacon
-          wasm-pack
-          nodejs_20
-          node2nix
-          wasm-bindgen-cli
-          json-schema-to-typescript
-        ];
+
+      toolchain = pkgs:
+        pkgs.rust-bin.stable.latest.default.override {
+          targets = ["wasm32-unknown-unknown"];
+        };
+
+      packages = {
+        json-schema-to-typescript = pkgs: pkgs.json-schema-to-typescript;
+        demo-inspector = pkgs: pkgs.demo-inspector;
+        demo-inspector-wasm = pkgs: pkgs.demo-inspector-wasm;
       };
 
-      packages = rec {
-        inherit (pkgs) json-schema-to-typescript demo-inspector demo-inspector-wasm demo-inspector-node-modules;
-        default = demo-inspector;
-      };
-    })
-    // {
       overlays.default = import ./nix/overlay.nix;
     };
 }