{

let
  hostPlatform = (import <nixpkgs> {}).stdenv.hostPlatform;
  copycmd = isLinux:
    if isLinux then
      "xclip -i -selection clipboard"
    else
      "pbcopy";
  pastecmd = isLinux:
    if isLinux then
      "xclip -o -selection clipboard"
    else
      "pbpaste";
in {

}

  pbcopy = copycmd (hostPlatform.isLinux);
  pbpaste = pastecmd (hostPlatform.isLinux);
}