/usr/share/racket/collects/launcher/main.rkt is in racket-common 6.1-4.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 | #lang racket/base
(require "launcher.rkt")
(provide (all-from-out "launcher.rkt"))
|