nixos-config/config/programs/keepass.nix

{
  pkgs,
  lib,
  ...
}: {
  home.packages = [pkgs.keepassxc];
  systemd.user.services.keepassxc = {
    Unit = {
      Description = "keepassxc";
      After = [ "graphical-session-pre.target" ];
      PartOf = [ "graphical-session.target" ];
    };
    Install.WantedBy = ["graphical-session.target"];
    Service = {
      ExecStart = "${pkgs.keepassxc}/bin/keepassxc";
    };
  };
}