Synology NAS (with SynoCommunity) + Transmission + Sonarr/Radarr/Prowlarr/etc + Kodi

It’s amazing, the new episodes or movies just show up right there in the media center, with correct metadata, ready to be watched.

Which model Synology? I’m hoping to do this as well as store family photos soon

Don’t cheap out on a NAS, I got an entry level Synology when I first started it was great for learning but was quite slow. I needed to sell that and buy a more powerful model to get one that could run Docker. I went for 716+ which I bought used of eBay and works well for me, the difference in speed is night and day. Ram can be upgraded onboard if required. Good luck 👍

Would a DS220+ be a similar model or less capable? I can’t seem to find a comparison

The 220+ was the first model I had, I found this slow and didn’t natively support docker as part of the package manager. Docker compatibility should be a priority when buying if delving into some setups mentioned here it just makes everything so much more convenient. The 16 series model is expensive to buy new, I picked mine up used from eBay from someone who was upgrading to a newer model. You can Google Docker compatibility for Synology models and get a list of models that work with it and morrow your choices down to these.