Use option key as meta in Alacritty under macOS
To use option key under macOS as Meta key use the option
option_as_alt
and set it to "Both"
.
This is the example for the newer Toml file format.
# ~/.alacritty.toml
[window]
option_as_alt = "Both"
And this is the older YAML format.
# ~/.alacritty.yml
window:
option_as_alt: Both
Check more at https://alacritty.org/config-alacritty.html#s20.