It really is wild what you can do in your garage these days. Since the early 2010’s there has been a true revolution in this space that has only accelerated over the last few years. I have an injection molding machine that I built in my garage for less than $1500 USD that has a 3 cubic inch injection volume, able to make a large variety of plastic components at small production scale using a mold I printed from my $5…
How do you get fully assembled PCBs at JLCPCB for $5. I just ordered one and it was $4.10 for bare PCB, assembly would cost additional $8 so minimum for assembled pcb is $12.
https://jlcpcb.com/blog/4-Free-Assembly-for-Your-PCB
The GP commenter also wrote about a price "per unit":
> get some reasonably complex fully assembled prototype boards shipped to me in a week or two for $5-20 USD per unit.