I write assembly and C code at GitHub and GitLab.
Mainly i8085/Z80/Z180 IEEE floating point maths libraries for z88dk, system libraries for i8085/Z80/Z180, and FreeRTOS ports for Z180 and Microchip (AVR) ATmega.

I sell things I made on Tindie.
Mainly Intel/Zilog 8-bit and ATmega based Modules for RC2014, and AVR SBCs.