It was asked a couple of months ago, but given the AI enshittification, it seems a good time to ask again.
I looked around and found:
- Pinetta is/was in development but seems dead with only an alpha release. I am chasing this up on Matrix. edit: Apparently still, technically, active although progress has been slow
- Pinry is a FOSS alternative, but not federated, that seems dormant. However, it works and is in Python, so someone could bolt an AP server to it, he says airily.
Image Storage. Image meta data / descriptions can contain links to sites. Images can go away if someone takes down the original or requests it be removed. I wouldn’t use it to store images I build, I use it for existing images and curate those into the way I need them for my game.