slop 2

flake.nix

@@ -7,6 +7,11 @@
     crane.url = "github:ipetkov/crane";
 
     flake-utils.url = "github:numtide/flake-utils";
+    rust-overlay = {
+      url = "github:oxalica/rust-overlay";
+      inputs.nixpkgs.follows = "nixpkgs";
+    };
+
   };
 
   outputs =
@@ -16,13 +21,25 @@
       crane,
       flake-utils,
       ...
-    }:
+    }@inputs:
     flake-utils.lib.eachDefaultSystem (
       system:
       let
-        pkgs = nixpkgs.legacyPackages.${system};
+        pkgs = import inputs.nixpkgs {
+          inherit system;
+          overlays = [ (import inputs.rust-overlay) ];
+        };
 
-        craneLib = crane.mkLib pkgs;
+        craneLib = (inputs.crane.mkLib pkgs).overrideToolchain (
+          p:
+          p.rust-bin.nightly.latest.default.override {
+            extensions = [
+              "rustc-codegen-cranelift-preview"
+              "rust-analyzer"
+              "rust-src"
+            ];
+          }
+        );
 
         # Runtime/shared libraries required by iced/iced_layershell/winit.
         # winit dlopens libwayland at runtime, so these must be on
@@ -46,7 +63,8 @@
           # git-initialized, so cleanCargoSource would otherwise copy target/).
           src = pkgs.lib.cleanSourceWith {
             src = ./.;
-            filter = path: type:
+            filter =
+              path: type:
               let
                 base = baseNameOf (toString path);
               in