init

flake.nix

@@ -0,0 +1,53 @@
+{
+  description = "Pure Nix library for IPv4 operations";
+
+  inputs = {
+    nixpkgs-lib.url = "github:nix-community/nixpkgs.lib";
+  };
+
+  outputs =
+    { self, nixpkgs-lib }:
+    let
+      # Import our library with nixpkgs.lib
+      ipLib = import ./lib { lib = nixpkgs-lib.lib; };
+
+      # Systems for checks and packages
+      systems = [
+        "x86_64-linux"
+        "aarch64-linux"
+        "x86_64-darwin"
+        "aarch64-darwin"
+      ];
+      forAllSystems = f: nixpkgs-lib.lib.genAttrs systems f;
+
+    in
+    {
+      # Primary library output
+      lib = ipLib;
+
+      overlays = {
+        default = final: prev: {
+          lib = prev.lib.extend self.overlays.lib;
+        };
+
+        lib = final: prev: {
+          iputils = ipLib;
+        };
+      };
+
+      # Tests
+      checks = forAllSystems (
+        system:
+        let
+          lib = nixpkgs-lib.lib;
+          runTests = import ./tests {
+            inherit lib system;
+            ipLib = ipLib;
+          };
+        in
+        {
+          tests = runTests;
+        }
+      );
+    };
+}