feat(wrapping): introduce wrapped configurations

overlays/derivations/nu/default.nix

@@ -0,0 +1,37 @@
+{
+  symlinkJoin,
+  nushell,
+  amadaluzian-starship,
+  zoxide,
+  makeWrapper,
+}:
+symlinkJoin {
+  name = "nu";
+
+  paths = [
+    nushell
+    amadaluzian-starship
+    zoxide
+  ];
+
+  nativeBuildInputs = [
+    makeWrapper
+  ];
+
+  passthru = {
+    inherit (nushell.passthru) shellPath;
+  };
+
+  meta = {
+    inherit (nushell.meta) mainProgram;
+  };
+
+  postBuild = ''
+    wrapProgram $out/bin/nu \
+      --set NU_CONFIG_DIR "${./cfg}" \
+      --add-flags '--env-config' \
+      --add-flags '$NU_CONFIG_DIR/env.nu' \
+      --add-flags '--config' \
+      --add-flags '$NU_CONFIG_DIR/config.nu' \
+  '';
+}