The bias of HN towards web dev is pretty funny sometimes. I'd definitely be very impressed if I received these business cards, it's more novel than other PCB business cards I've seen and took a lot more initiative and effort with all the sourcing and research required. But the design and integration work is something I'd expect any embedded systems engineer to be capable of, and the vast majority of those engineers are making less than all of you guys at FAANG talking about kubernetes or whatever it is that goes on there