BREAKING-CHANGE: changed nixpkgs to stable 24.11 + structure change + fmt

overlays/default.nix

@@ -0,0 +1,41 @@
+# This file defines overlays
+{inputs, ...}: {
+  # This one brings our custom packages from the 'pkgs' directory
+  additions = final: _prev:
+    import ../pkgs {pkgs = final;};
+
+  # This one contains whatever you want to overlay
+  # You can change versions, add patches, set compilation flags, anything really.
+  # https://nixos.wiki/wiki/Overlays
+  modifications = final: prev: {
+    # example = prev.example.overrideAttrs (oldAttrs: rec {
+    # ...
+    # });
+  };
+
+  # For every flake input, aliases 'pkgs.inputs.${flake}' to
+  # 'inputs.${flake}.packages.${pkgs.system}' or
+  # 'inputs.${flake}.legacyPackages.${pkgs.system}'
+  flake-inputs = final: _: {
+    inputs =
+      builtins.mapAttrs (
+        _: flake: let
+          legacyPackages = (flake.legacyPackages or {}).${final.system} or {};
+          packages = (flake.packages or {}).${final.system} or {};
+        in
+          if legacyPackages != {}
+          then legacyPackages
+          else packages
+      )
+      inputs;
+  };
+
+  # When applied, the unstable nixpkgs set (declared in the flake inputs) will
+  # be accessible through 'pkgs.unstable'
+  unstable-packages = final: _prev: {
+    unstable = import inputs.nixpkgs-unstable {
+      system = final.system;
+      config.allowUnfree = true;
+    };
+  };
+}