Porter provides a Prometheus metrics interface to many -- perhaps too many -- things around the home. You don't need to use all or even most of these. It will happily export metrics for even a single one of them.

• SmartThings
• Savant Pro
• Tesla vehicles and Powerwall batteries
• Lutron Homeworks QS, Radio Ra 2, Radio Ra 2 Select, Caseta PRO, and other systems that use the Lutron Integration Protocol
• Lutron Homeworks Illumination
• Rachio irrigation
• Rinnai water heaters
• Honeyewell/Ademco "Total Connect" security systems
• Ambient Weather and PurpleAir sensors
• Flo by Moen (whole house water valve)
• Generac PWRview energy monitor (formerly Neurio)
• Tank Utility tank level reporter (for propane and fuel oil tanks)
• NetAXS-123 door lock controller
• Schneider Conext Combox solar monitor

Limited support is provided for Nest thermostats.