According to the official Discord, “ACX has made the decision to close Booklore and step away.” Some contributors are working together on an unnamed replacement project.
For those not in the loop, Booklore was an app that for selfhosting book libraries. It had a nice UI. It was able to store metadata separately from the download files, so you could have an organized library without duplication. In recent weeks, there have been conflict about AI code, licensing, and general Discord nastiness.
RIP
You don’t really need to care about that from a consumer perspective. Unfortunately however, this is a common weakness of FOSS projects. If the maintainer is an asshole, the project suffers and eventually dies most of the time. Being an asshole is not conducive towards attracting contributors. Who knew?