Facts to look up: fields, flags, variables, limitations and measured numbers. The code itself is documented under Namespaces, Classes and Files.

Page	What it holds
I/O Reference	every input field, command-line flag and output file, with units and defaults
Build Reference	every CMake variable, with HPC examples
Known Issues	where Q3 is still weak; read it before trusting an untested regime
Performance	benchmarks, single core to GPU
Performance on Perlmutter	timings and scaling on NERSC Perlmutter
Band Structure Comparison	Q3's band structures and densities of states against Quantum ESPRESSO
TODOs	planned and in-progress work, in the same areas as Functionality
Statistics	the size of the codebase and its test suite
AGENTS.md	the conventions every change to the repository follows
Provenance register	the modules reviewed for provenance, and the outcome
License	the Apache License 2.0