nix-files/hosts/common/programs/xdg-desktop-portal.nix

{ config, lib, ... }:
let
  cfg = config.sane.programs.xdg-desktop-portal;
in
{
  sane.programs.xdg-desktop-portal = {
    services.xdg-desktop-portal = {
      description = "Portal service";
      wantedBy = [ "graphical-session.target" ];

      serviceConfig = {
        ExecStart="${cfg.package}/libexec/xdg-desktop-portal";
        Type = "dbus";
        BusName = "org.freedesktop.portal.Desktop";
      };

      # xdg-desktop-portal expects to act as a strict frontend and manage xdg-desktop-portal-{gtk,wlr,etc} itself,
      # which means it needs to know how which endpoints each backend provides and how to launch it,
      # encoded in /share/xdg-desktop-portal/portals:
      environment.XDG_DESKTOP_PORTAL_DIR = "/etc/profiles/per-user/%u/share/xdg-desktop-portal/portals";
    };
  };

  environment.pathsToLink = lib.mkIf cfg.enabled [
    "/share/xdg-desktop-portal/portals"
  ];
}