Reference

The whole surface of jpx is one target and a handful of flags. The target grammar is covered in Choosing a target; the flags are these:

Flag What it does
--modular Resolve purely over module descriptors, walking requires clauses like the modular layout - every module must be explicitly named.
--docker[=<image>] Run the launched process in a container while resolution and installation stay on the host.
--hash=<prefix> Verify the installed jars against a known digest before launching.

--modular is covered in depth under Choosing a target; --docker and --hash under Isolation & verification.

Usage

Running jpx with no arguments - or with --help - prints the usage screen:

jpx --help