jry shared his simple DIY JBC soldering station in the project log forum:
Current status: transformer inside old PSU housing as temporary solution. I don’t want to mess with mains on my desk. For now battery powered (3.2V LiFePO4) logic part. Opamp, Atmega328p, three buttons, LCD (waiting for b&w OLED instead of this one for better contrast and faster refresh rate).
Via the forum.