flake.nix

@@ -45,10 +45,13 @@
         overlays = [(import rust-overlay)];
       };
 
-      #rust-nightly = pkgs.rust-bin.selectLatestNightlyWith (toolchain: toolchain.default);
-      rust-stable = pkgs.rust-bin.stable.latest.default;
+      nightly = true;
+      rust =
+        if nightly
+        then pkgs.rust-bin.selectLatestNightlyWith (toolchain: toolchain.default)
+        else pkgs.rust-bin.stable.latest.default;
 
-      craneLib = (crane.mkLib pkgs).overrideToolchain rust-stable;
+      craneLib = (crane.mkLib pkgs).overrideToolchain rust;
 
       nativeBuildInputs = with pkgs; [
         pkg-config
@@ -79,7 +82,7 @@
           statix
           ltex-ls
 
-          rust-stable
+          rust
           rust-analyzer
           cargo-edit
           cargo-expand