openHAB might be a bit more popular than VoiceMacro. We know about 1 link to it since March 2021 and only 1 link to VoiceMacro. 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.
This isn't quite your question, sorry OP, but thought I'd throw voicemacro out there if you use Windows. It allows you to speak into a microphone to then execute keybinds. Source: over 1 year ago
You can start on a general home automation like openhab.org. Source: almost 2 years ago
VoiceAttack - VoiceAttack will take commands that you speak into your microphone
Home-Assistant.io - Home Assistant is an open-source home automation platform running on Python 3.
VoiceBot - Take command of your games with your voice using VoiceBot!
ioBroker - flexible and modular application for the IoT and Smarthome
Braina - Braina (Brain Artificial) is an intelligent personal assistant software for Windows OS that allows you to interact with your computer using voice commands.
Google Home - Set up, manage, and control your Chromecast, Chromecast Audio and Google Home devices.