Esp32sim
A Rust emulator that boots unmodified ESP32-S3 firmware, Wi-Fi included
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Web-skilled teams can write a device's screen interface once and ship it to an ESP32 board, a phone and a desktop without learning embedded C++ toolkits.
GeaStack is a UI framework whose compiler, geatsc, turns TypeScript into C++ so JSX and CSS interfaces run natively. Targets include ESP32 and RP2350 boards, Linux and Raspberry Pi, Windows, macOS, iOS, Android and Xbox, with a web simulator. Compiler and CLI are Apache-2.0, board support is GPL-3.0, and a commercial licence covers closed firmware. The Reddit post mentions STM32 and 3D, which the public repos do not yet show. Based in Germany.
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