A demo of the configurator only. The parts and rules are the real ones, exported from the database, and the compatibility check that runs on the server in the full system runs in your browser here. Accounts, saving, orders, stock and the admin pages need the full PHP and MySQL system.
Configurator
Start with the motherboard: every other part is then offered only if it fits. A part that does not fit is greyed out, with the reason under it.