Which source is the recommended source to install Syncthing on a Synology DS220+ ?
I have read: Instal Syncthing on new Synology DS220+ but:
The Kastelo is deprecated: Syncthing Synology Package — Kastelo Docs documentation
This package is deprecated. It does not support DSM 7, and as of the 1st of January 2022 it is no longer maintained or updated.
This site is not available: https://packages.synocommunity.com/
TL;DR how to install Syncthing on DS220+ in 2023?