From 97dd9385a05b1c3547ce1df181b14fca235c1e7d Mon Sep 17 00:00:00 2001
From: Igor Brylyov <movefasta@dezcom.org>
Date: Sun, 3 Sep 2023 21:55:45 +0300
Subject: [PATCH] Placeholder for overlay

---
 flake.nix | 9 ++++++++-
 1 file changed, 8 insertions(+), 1 deletion(-)

diff --git a/flake.nix b/flake.nix
index 9f1a90d..1bf17c7 100644
--- a/flake.nix
+++ b/flake.nix
@@ -10,9 +10,16 @@
     flake-utils.lib.eachDefaultSystem
       (system:
         let
-          pkgs = nixpkgs.legacyPackages.${system};
+          pkgs = nixpkgs.legacyPackages.${system}.extend overlay;
           ros = ros-flake.legacyPackages.${system};
 
+          overlay = final: prev: {
+            # -- PLACEHOLDER for overlay
+            # freecad = prev.freecad.overrideAttrs
+            #   (old: { cmakeFlags = old.cmakeFlags ++ [ "-DBUILD_GUI=OFF" ]; });
+            # cmakeFlag -BUILD_GUI=OFF for build without gui
+          };
+
           # overrided packages and attributes for nix-ros-overlay
           humble-overrided = ros.humble.overrideScope (final: prev: {
             # remove after update github:lopsided98/nixpkgs/nix-ros for https://github.com/NixOS/nixpkgs/pull/224099