Step by step setup for Memories and your NAS.
Turn on WebDAV in QTS, give your user access to the photo folder, find the WebDAV address and port, and fix the usual login and folder errors.
Install WebDAV Server in DSM, turn on HTTP on port 5005, give your user access to the photo folder and open it from an Android phone.
See the photos you took on this day in past years, straight from your own NAS, with a daily reminder, the places and the trips abroad.
Back up the Android camera folder to a QNAP or Synology NAS over WebDAV, sorted into year, place and day folders, then free up the phone.
Open the photos on a QNAP or Synology NAS from your Android phone anywhere, through Tailscale, with no open router port.