diff --git a/home/overlays.nix b/home/overlays.nix
index f2ae044..617bf26 100644
--- a/home/overlays.nix
+++ b/home/overlays.nix
@@ -3,6 +3,7 @@
   (
     self: super:
       rec {
+        #jami-ring-daemon = super.qt5.callPackage ./ov/jami/ring-daemon.nix {};
         myVim = with super; neovim.override { configure = {
           packages.myVimPackage = with pkgs.vimPlugins; {
             # loaded on start
@@ -26,6 +27,9 @@
           };
           customRC = builtins.readFile ./vimrc;
         };};
+        # build with debug symbols and in debug mode (less optimized)
+        opencvDebug = with super; enableDebugging ((opencv3.override { enablePython = true; enableGtk3 = true; enableDocs = true; pythonPackages = pkgs.python3Packages; }).overrideAttrs (oldAttrs: rec { cmakeBuildType = "Debug"; }));
+        #gnutls = super.callPackage ./ov/gnutls {inherit (super.darwin.apple_sdk.frameworks) Security;};
       }
   )
 
diff --git a/home/vimrc b/home/vimrc
index 03bc2e7..4226a8d 100644
--- a/home/vimrc
+++ b/home/vimrc
@@ -37,9 +37,7 @@ set autoindent
 set history=1000
 " set cursorline
 " use system clipboard as default buffer
-" unnamedplus corresponds to the + register on Linux,
-" representing system clipboard (not X11 clipboard)
-set clipboard=unnamedplus
+set clipboard=unnamed
 
 " set expandtab
 set shiftwidth=4