In this video I'll build and test a great SPI Nixie driver based on an STM32 called Exixe.
It works great, highly recommended.
Huge thanks to JLCPCB for their continued support, they make really good and cheap PCBs: https://jlcpcb.com/
Exixe github: https://github.com/dekuNukem/exixe
Tindie: https://www.tindie.com/stores/dekuNukem/