Migrate to more modular layout

1 files changed, 26 insertions, 0 deletions

diff --git a/overlays/default.nix b/overlays/default.nix
new file mode 100644
index 0000000..669bd73
--- /dev/null
+++ b/overlays/default.nix
@@ -0,0 +1,26 @@
+#
+# This file defines overlays/custom modifications to upstream packages
+#
+
+{ 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: let ... in {
+    # ...
+    # });
+  };
+
+  # 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;
+    };
+  };
+}