I much prefer working on my fast Ryzen "NUC" to a Pi4, but for electronics tinkering, I miss it having decent memory-mapped GPIO+SPI+I2C. From time to time, I s

I much prefer working on my fast Ryzen "NUC" to a Pi4, but for electronics tinkering, I miss it having decent memory-mapped GPIO+SPI+I2C. From time to time, I search around in case someone's done a nice PCIe (or M.2?) card with a handful of I2C and SPI buses plus a bunch of GPIOs, but haven't found anything decent. Ironically, I'd be happy to pay much more than the cost of a entire Pi4 to get the same GPIO as an add-on for a fast, reliable amd64 machine.