This is a new CLI action that prints an option or keybind's help
documentation to stdout.
ghostty +explain-config font-size
ghostty +explain-config copy_to_clipboard
ghostty +explain-config --option=font-size
ghostty +explain-config --keybind=copy_to_clipboard
The --option and --keybind flags perform a specific lookup. A string
passed as a positional argument attempts to look up the name first as an
option and then as a keybind.
Our vim plugin uses this with &keywordprg, which allows you to look up
the documentation for the config option or keybind under the cursor (K).
This will (on GTK) use a D-Bus method call to tell a running
Ghostty instance to open a new window. If D-Bus activation is
configured properly, Ghostty does not need to be running first.
This could be extended to other platforms, e.g. AppleScript on macOS
eventually.
When Ghostty develops a native API, that could be used instead to create
a new window.
