Function falcon_font_dir 

pub fn falcon_font_dir() -> Option<PathBuf>

The folder falcon copies the fonts it activates into (macOS: ~/Library/Fonts/Falcon/; on Windows Falcon\Fonts in %LOCALAPPDATA%; elsewhere fonts/Falcon in the user’s data folder, which fontconfig reads). falcon never writes to Eagle’s folder, which the user’s Eagle manages; it only reads it.