"I can do anything I want. It's just bits. You don't own me." Fair enough! x-D
Dissatisfied with the state of the vendor SDK for CH32V003 microcontrollers (ultra-cheap RISC-V MCUs), he created his own [1], which is a pleasure to use. He also has a header-only RISC-V emulator that runs Linux (and Doom!) [2], and hacked an ESP32 to emit valid LORA frames with clever use of aliasing [3].
[1] https://github.com/cnlohr/ch32v003fun