fix(prog/nvim): system clipboard

nix/home.nix

@@ -41,7 +41,8 @@ in
   home.stateVersion = "21.11";
 
   home.packages = with pkgs; [
-    # system ui
+    # system
+    xclip           # access x clipboard from a console
     dmenu           # menu for x window system
     flameshot       # powerful yet simple to use screenshot software
 

programs/nvim/init.vim

@@ -4,6 +4,7 @@ let g:maplocalleader = '-'
 
 syntax enable
 filetype plugin indent on
+set clipboard+=unnamedplus
 set encoding=utf-8
 set autoindent
 set smartindent