openHAB might be a bit more popular than GigaOM. We know about 1 link to it since March 2021 and only 1 link to GigaOM. We are tracking product recommendations and mentions on various public social media platforms and blogs. They can help you identify which product is more popular and what people think of it.
I checked them out of curiosity so here you go: https://gigaom.com/. Source: over 3 years ago
You can start on a general home automation like openhab.org. Source: almost 2 years ago
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