gistfile1.txt

let 
  userservice = args: {                                                                                                                                        
    name = args.name;                                                                                                                                          
    value = {                                                                                                                                                  
      wantedBy = [ "default.target" ];                                                                                                                         
      enable = true;                                                                                                                                           
      serviceConfig = {                                                                                                                                        
        RestartSec="500ms";                                                                                                                                    
        Restart="always";                                                                                                                                      
        ExecStart="/run/current-system/sw/bin/sh -c '" +                                                                                                       
          "export GTK_DATA_PREFIX=/run/current-system/sw;" +                                                                                                   
          "export PATH=$PATH:/var/setuid-wrappers:%h/.nix-profile/bin:/nix/var/nix/profiles/default/bin:/run/current-system/sw/bin:/run/current-system/sw/sbin;
" +                                                                                                                                                            
          "exec ${args.command}'";                                                                                                                             
      };                                                                                                                                                       
    };                                                                                                                                                         
  };
in {

    systemd.user.services = (builtins.listToAttrs (map userservice [                                                                                             
      { name = "chromium"; command = "${pkgs.chromium}/bin/chromium"; }                                                                                        
      { name = "claws-mail"; command = "${pkgs.claws-mail}/bin/claws-mail"; }                                                                                  
      { name = "gajim"; command = "${pkgs.gajim}/bin/gajim"; }                                                                                                 
      { name = "gpg-agent"; command = "${pkgs.gnupg1compat}/bin/gpg-agent"; }                                                                                  
      { name = "copyq"; command = "${pkgs.copyq}/bin/copyq"; }                                                                                                 
      { name = "xautolock"; command = "${pkgs.xautolock}/bin/xautolock -time 20 -locker %h/bin/i3lock.sh"; }                                                   
      { name = "mpd"; command = "${pkgs.mpd}/bin/mpd"; }                                                                                                       
  ])); 
}