There are 3 repositories under heos topic.
Desktop application to control Denon Heos network speakers
Scrobbles or sends meta-data of streamed music on Bluesound/BluOS, Yamaha MusicCast and/or Denon HEOS players to Last FM, ListenBrainz, Libre FM and/or GNU FM. Built for Raspberry pi-alike devices.
An async python library for controlling HEOS devices through the HEOS CLI Protocol
A .Net HEOS CLI client using Reactive Extensions
HEOS by Denon controller in Java
Low-level API for Denon HEOS speaker family
Update now playing and scrobble tracks listened with HEOS device to Last.fm.
A Node-RED node for integration of HEOS devices like Denon Home.
Custom improvement of official HA integration for Denon HEOS.
Control and monitor HEOS player from ioBroker
A Python library for working with the HEOS audio ecosystem - for certain Denon & Marantz products.
Node.js streams for HEOS protocol communication over a socket
Update now playing and scrobble tracks listened with HEOS device to Last.fm on RPi
An ugly prototype for a Last.fm scrobbler getting song info from Android notifications pushed by the HEOS app (used on Denon/Marantz HEOS devices).
Sync Amplifier and Network Audio Player using HEOS and NATURE REMO