You could do it by specializing in a specific area and building automation tools as you go. No reason this can't keep increasing the multiplier. Finding others

You could do it by specializing in a specific area and building automation tools as you go. No reason this can't keep increasing the multiplier. Finding others who want to join you can accelerate the process. Certainly a pair of you could do 100x better than 2 regular engineers doing these as one-off tasks.