I've managed to go a number of years in the software industry without having any repetitive strain issues. That all seems to have changed this month, so I've been looking for ways to ease the burden on my wrists and arms.
Enter: macOS voice control
This built in accessibility tool is free to use and runs locally* on–Device without sending my audio to a remote server. (* requires Apple silicon)
When I first noticed this feature, many years ago, I completely ignored it. At that time, it required remote server voice analysis in order to operate. So if you're wondering what the Secret Killer Feature actually is here, it's the fact that this is now on-device functionality, at least for Apple Silicon devices.
It's not perfect, but I'm getting used to its quirks and foibles.
How it works
To begin with, it's important to note that voice control is completely separate from Siri. You don't have to say something like "Hey Siri" to activate it; when enabled, it is always listening.