Just a sidebar..and this is NOT against soldering, just a fun fact, no soldering is used on a spacecraft, there are so many connections that the extra weight of the solder would keep it from getting into orbit after liftoff. I worked for an aircraft manufacturer in avionics, have a NASA soldering school certificate which includes certs for up to 7 layer circuit boards, ok that may give away my age. Very Large Scale Integrated circuits (VLSI) became the mainstream right about then, but we still had to get the NASA cert because a division of that company did NASA contracts.