• idf-ll-compile pre-compiles a static library for ESP32C3 and ESP32
• esp-ll a simple crate that uses the pre-compiled static libraries and implement OuputPin and I2c (only one)
• esp32c3 a BM Rust application that blinks LED on IO3 and drives an SSD1306 display
• esp32 a BM Rust application that drives an SSD1306 display

The code is very hacky since this is just an experiment.