Comment by dakial1
Some time ago I configured Photostructure on my Synology (with the amazing help of the author, @mceachen) and the most paindful part was rescuing my 1.5TB of photos from Google Photos. Takeout was very cumbersome to use and download 100+ files of 4gb, so ultimately resorted to paying a higher tier at Google Drive, using takeout Google Drive option and the sync to the NAS. I still don’t have a good method to keep everything in sync as Google Photos does not offer a viable option for a cloud-to-premises sync.
I wrote some tips and tricks that I've found to help coax Google Takeouts into working: https://photostructure.com/faq/takeout/
Also: you should try out the latest build! https://photostructure.com/about/v2026.1/
FWIW all of these projects rely on ExifTool (which people should donate to!) and my open-source node.js wrapper (that adds concurrency, does a ton of extra parsing work, and makes things a bit more ergonomic to live with): https://github.com/photostructure/exiftool-vendored.js