python3 common/web/tests/tools/gen_competency_archive.py --rows 1000000
(and --rows 5000000 for the larger one). Seven years of EBT competency
assessments with fleet, base, position, session type and examiner, so every preset has
something to say. The 5M file is 364 MB and peaks around 2 GB of browser
memory - fine on a desktop, likely too much for a tablet. Start with the 1M one.