SaraSortd's service without systemd (runit, OpenRC, ...)

Co-Authored-By: Claude Opus 5.5 <[email protected]>

Core.py

@@ -6,6 +6,7 @@ one Sara program looks the same in all of them.
 """
 
 import os
+import shutil
 import sys
 from dataclasses import asdict, dataclass
 from pathlib import Path
@@ -31,6 +32,13 @@ else:
     ConfigHome = Path(os.environ.get("XDG_CONFIG_HOME") or Home / ".config")
     DataHome = Path(os.environ.get("XDG_DATA_HOME") or Home / ".local" / "share")
 
+# Linux: whether systemd runs the system (and so SaraSortd's --user unit),
+# the same check as SaraSuite's. Without it (runit on Void, OpenRC, ...),
+# SaraSuite runs SaraSortd itself, the way it does on Windows (Service.py).
+HasSystemd = not IsWindows and Path("/run/systemd/system").is_dir() and shutil.which("systemctl") is not None
+RunBySaraSuite = IsWindows or not HasSystemd
+AutostartDir = ConfigHome / "autostart"
+
 SharedConfigDir = ConfigHome / "SaraSuite"
 ThemesDir = SharedConfigDir / "Themes"
 SharedConfigPath = SharedConfigDir / "Config.toml"