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python-openzwave is unmaintained and the codebase hasn't seen any new activity for the past two years.

This leaves many Z-Wave-related issues (e.g. #180 (closed), #182 (closed), #183 (closed)) unaddressed, since the bugs are often caused by the underlying python-openzwave dependency.

zwave2mqtt is in a similar condition as python-openzwave, is currently unmaintained and its API is largely incomplete and mostly designed for the specific use case of HomeAssistant.

zwavejs2mqtt is probably the most mature project that implements a Z-Wave bridge and is still largely maintained.

Platypush should implement an integration with zwavejs2mqtt and decommission/deprecate the native python-openzwave integration once it's ready.