@arcange:

The chain has active development - in fact quite a lot.

1. The last release is on July 27th 2021
2. Development and Project Management is here : https://gitlab.com/PBSA/peerplays/
3. In the context of Hive, the current development feature is the Hive - Peeplays sidechain & the test docker setup is here. Note: This has Bitcoin Sidechain as well as the Hive Sidechain and obviously the Peerplays chain code.

If there is anything on the tech / development side of things, I can answer them