Some helpful shortcuts for MacOS using Karabiner-Elements tool
There is no built-in keyboard brightness control in macOS. Add this rule to increase/decrease brightness using command + F1/F2 keys.
Why is it not a built-in feature? Who knows...
There is a weird delay/glitch when I switch the layout using the default MacOS keyboard shortcut called "Select the previous input source". Sometimes it doesn't even work and when I type fast it really drives me crazy.
Add this rule to certainly instantly switch the input language between English and Russian using control + spacebar key.
You can modify the script with your languages