{ lib, pkgs, config, osConfig, ... }: { options.programs.signal-desktop-bin = { enable = lib.mkEnableOption "enable signal"; }; config = lib.mkIf config.programs.signal-desktop-bin.enable (lib.mkMerge [ { home.packages = with pkgs; [ signal-desktop-bin ]; } ( lib.mkIf osConfig.host.impermanence.enable { home.persistence."/persist${config.home.homeDirectory}" = { directories = [ ".config/Signal" ]; }; } ) ]); }