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Light switch advice
(lemmy.world)
Home Assistant is open source home automation that puts local control and privacy first. Powered by a worldwide community of tinkerers and DIY enthusiasts. Perfect to run on a Raspberry Pi or a local server. Available for free at home-assistant.io
This, but I'd recommend zigbee over zwave. Zwave is kinda dead and not worth investing in, zigbee sensors and switches are much more available and cheaper. (I run both)
I do a similar setup to what you want, with inovelli switches. They're nice but a bit pricy, there are cheaper options available.
Highly disagree that Z-Wave is dead. There are many companies, especially Zooz, coming out with new products all the time. Yes, ZigBee is far cheaper but I've had the worst reliability issues with ZigBee and moved everything to Z-Wave. Zero issues with connectivity or batteries dying too fast.
But that's the beauty and strength of HA. Openess and selection.