This is the Racket flatpak. It includes all the executables that a Racket
distribution should have, such as racket, raco and drracket. After
installation, users can open a DrRracket instance conveniently through
DE-specific application launchers, e.g. GNOME Activities Overview or
KRunner.
To run any command at the command line, use
--command=<the-executable-you-want-to-run>. For example, you can open a REPL
flatpak run --command=racket org.racket_lang.Racket. Or you can use flatpak run --command=raco org.racket_lang.Racket to run raco.