nix-conf/user/autostart.nix

{
  config,
  lib,
  pkgs,
  ...
}:
lib.mkIf config.u.has.graphical {
  systemd.user.targets.autostart = {
    Unit = {
      Wants = [
        "plasma-polkit-agent.service"
        "plasma-xdg-desktop-portal-kde.service"
        "plasma-dolphin.service"
        "xdg-desktop-portal.service"
        "copyq.service"
        "fcitx5.service"
        "picom.service"
        "safeeyes.service"
        "snixembed.service"
      ];
      Requires = [
        "graphical-session.target"
      ];
    };
  };
  systemd.user.services = {
    copyq.Service.ExecStart = ["${pkgs.copyq}/bin/copyq"];
    fcitx5.Service.ExecStart = ["/run/current-system/sw/bin/fcitx5"];
    picom.Service.ExecStart = ["${pkgs.picom}/bin/picom"];
    safeeyes.Service.ExecStart = ["${pkgs.safeeyes}/bin/safeeyes"];
    snixembed.Service.ExecStart = ["${pkgs.snixembed}/bin/snixembed"];
  };
}