Importing iCloud Shared Albums into Immich

I recently moved my photo library from iCloud onto a self-hosted Immich instance running on an old MacBook Pro in my living room. Importing the main library went pretty smoothly. The (shared) albums: not so much. The starting point My main library was already in Immich: Around 50,000 photos and videos going back to 2011. I got them in there using Parachute, a Mac app that exports an Apple Photos library to plain files and folders. No proprietary format, just a date-based file tree: Photos Library/ 2025/ 08/ 11/ FLOZ2963.jpg L1300599.jpg ... I copied the whole library folder to my home server, ran immich upload, then waited a few hours. Immich hashes every file it uploads, so re-running the import is pretty safe and will not generate any duplicates. It is very well done, a great experience, would recommend! 🙂 Now, Parachute also exports a second tree - Shared Albums/ - which contained the 42 albums I’d built up over the years. I wanted those inside Immich as well. First attempt…