BACnet4Linux, a project that is developing a complete implementation of the BACnet protocol for use by anyone who wishes to give their products BACnet communication capability on Linux, has created a developers mailing list for developers to communcate with each other about ongoing development of BACnet4Linux.
Subscriptions to the developer mailing list can be made here:
https://lists.sourceforge.net/lists/listinfo/bacnet4linux-developer
Steve