/usr/bin/byebug is in ruby-byebug 10.0.1-1.
This file is owned by root:root, with mode 0o755.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 | #!/usr/bin/ruby
# frozen_string_literal: true
require "byebug/runner"
Byebug::Runner.new.run
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