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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
A low-wiring way to do it would be to replace the bulbs with hue/similar bulbs, then just put a battery powered button in the location you want to have the controls. £10-ish for each button, plus however much the bulbs are.
Then just have the button set to toggle the lights on/off (you can also call different presets like dim etc by pressing and holding).
Then hass just directly sends the on/off commands to the bulbs.