Check out diyHue to use the Hue app with Zigbee2MQTT without a physical Hue bridge. I've been running it for almost a year with zero problems using the Hue Essentials app. Source: over 1 year ago

Finally, I'd like to mention DiyHUE, (HA addon and integration availables) which is basically a HUE emulator that allow you to add a lot of non-hue lights into the HUE ecosystem, and control them using the official HUE app, which has a really nice UI and the whole "hue labs" formulas and custom effects included, which is awesome. Source: almost 2 years ago

Maybe diyHue is what you're looking for. As a warning, consider it in alpha stage. Source: about 2 years ago

There’s a few projects out there like this: https://openrgb.org/ and https://diyhue.org/ there’s probably a few others too. Source: over 2 years ago

Ther also exists a Hue Bridge emulator called DIYhue. I didn‘t try it yet but it seems promising. This Software can run on a Pi and emulates a Hue Bridge. Therefore your official Hue app can discover it. On the other end the Software connect with the real Bridge but also with third party devices. For example over the ConBee II ZigBee USB Stick. Source: over 2 years ago

Rhasspy seems promising and I started to tinker with it, but didn't get to a functional state before I got distracted by something else. Source: 7 months ago

Alternatively you could try using rhasspy under termux. Source: about 1 year ago

Rhasspy might have a lot of what you're looking for: Https://rhasspy.readthedocs.io/en/latest/. Source: about 1 year ago

There's many voice control options for HA, both private ones like Rhasspy and the corporate spyware ones that only an idiot would use. Source: over 1 year ago

Rhasspy is amazing and more capable than Mycroft (e.g. Satellite support, something that’s mandatory imo), but even more DIY and beginner-unfriendly. That said, the docs are decent, the community is helpful. Source: over 1 year ago