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1 year agoSeems so. Checked the sources and there’s no upload/download. And testing it I can confirm the network tab in the dev tools is silent. Everything work local side. Probably with some additional work this could be converted to a PWA (Progressive Web App) and work completely offline.
I had a “portable” 286 PC with DOS. And two games. Bubbles Bubbles and a game with two chimps throwing Bananas at each other.