flightcrew-gui(1) epub validator graphical frontend Section 1 flightcrew bookworm source Description FLIGHTCREW-GUI NAME flightcrew-gui - epub validator graphical frontend SYNOPSIS flightcrew-gui DESCRIPTION FlightCrew is a epub validator; this is a graphical stub for the validator. SEE ALSO flightcrew-cli(1) See Also flightcrew-cli(1)