Web-based software is easy to extract (singlefile), preserve (webarchive), or even rebuild during its lifespan.
Desktop software is way less reliable than you think – I have a few Akai keyboards I can't configure because they don't work on my Mac already, not to mention how hard it was at least finding this executable for more than decade old keyboard.
It's all client side -- someone (maybe me!) would spin up openkeychron from an old saved copy of the webpage and we'd be back in business in a day. Right now the keychron-hosted solution is fine -- no accounts or anything crazy -- so there's no impetus.
EDIT: turns out that my keychron, at least, is compatible with QMK/VIA and there are already open source alternatives [1] that do the job.
