nixify the project

nix/devShells/flake-module.nix

@@ -0,0 +1,11 @@
+{ inputs, ... }:
+{
+  perSystem = { pkgs, system, ... }: {
+    devShells.default = pkgs.mkShellNoCC {
+      nativeBuildInputs = with pkgs; [
+        bun
+        inputs.bun2nix.packages.${system}.default
+      ];
+    };
+  };
+}

nix/packages/flake-module.nix

@@ -0,0 +1,17 @@
+{ self, inputs, ... }:
+{
+  perSystem = { pkgs, self', system, ... }: {
+    packages = {
+      default = self'.packages.customer-portal;
+
+      customer-portal = inputs.bun2nix.lib.${system}.mkBunDerivation {
+        pname = "customer-portal";
+        version = "0.0.1";
+        index = "app.config.ts";
+
+        src = ../..;
+        bunNix = ./bun.nix;
+      };
+    };
+  };
+}