This means a lot, thank you. "The original vision for apps" is exactly the philosophy I built it with. I invested a lot in the service worker and iOS rendering (smaller canvas pool, DPR capped at 2, periodic engine reset to stay under Jetsam's memory limits), so hearing that the experience holds up in real use is the most valuable feedback I could get. iOS was the hardest platform to optimize, glad to know it was worth it. If you notice anything that doesn't work well on longer documents, let me know.