... It all started when we decided to see if it would be possible to port Squeezelite to the ESP-IDF platform, running on an ESP32. Some weeks later, an amplifier board with a ton of feature came to life, animated by a custom firmware running a customized version of the trusty squeezelite software along with some cool features like Bluetooth sink, Airplay sink as well as an SPIF port and a line out connector.
It's unfortunately now a much smaller set of users, but it's extremely active. I would say it has kept up with or being ahead of all you can want from a music management platform
I bought my wife a SqueezeBox years ago and figured it was a dead platform by now. Interesting to learn that there's still a community.