Steps for getting a particular job done, for a reader who already knows what they want. To learn Q3 from the start, follow the Tutorials instead.

Guide	Use it to
User Guide	install Q3 (container, release archive, source build, Python package), run a calculation, drive workflows
Troubleshooting	get past a build or run failure someone has already hit
Building on Perlmutter	build Q3 on NERSC Perlmutter with its modules, start to finish
podman-hpc and Shifter	run the Q3 container on an HPC system
Contributing	submit a change: license, sign-off, review