I loved tinkering with electronics when I was younger - still do to a smaller degree. I built my first computer by fixing some blown capacitors on a motherboard I found in the trash. Back in the day, lots of products came with schematics, now you might get a lawsuit if you dare to take something apart. It was way easier to take apart and tweak through hole components too - now everything is surface mount or on chip a…
Surface mount isn't that big of a deal. A cheap hot air gun, a soldering iron, flux, and some solder paste are all you need to work with most BGAs, QFN, and other modern packages. PCB prototype manufacturing has never been cheaper thanks to companies like JLCPCB. With all the fantastic learning material on YouTube, open source tools like KiCad, and inexpensive chinese test equipment, the kids these days can do WAY mo…
Kicad ecosystem is very much alive and I was able to reuse dimensions from another project for the same computer.
I made a RAM expansion board for Sharp X68000. You can check it out on https://github.com/stas2k/galspanic