Last month [Some Assembly Required] took on the challenge to recreate a classic computer from the ground up and started with a 6502 implementation in Verilog. You can see in the second video below ...

There’s also a tiny PCB-mount speaker, as well as I2C, SPI, and UART interfaces. Finally, there’s 2 MB of flash onboard, and a 40-pin connector hosting all the 6502 signals that you know and love.