Extremely basic RISC-V VGA demo platform

I've been working on a 'custom demo platform', with the only constraint that it should be as cheap as possible. This means, you get: * A CH32V003 microcontroller (RISC-V RV32EC, 48 MHz, 16k flash, 2k RAM) * Bit-banged VGA * PWM audio NOTE: **YOU NEED A "WCH WLink-E" TO FLASH CODE TO THE CHIP** It's capable of roughly something like "Craft" by lft (that chip only runs at 20 MHz but it can do I/O operations much more quickly, so it evens out). Unfortunately, other demo projects have taken precedence by now, but I have the parts here. I haven't fabricated any boards yet, but if there's any interest in this, I might make a few and hand them out to whoever is interested. I can bring it to Revision (and show you the code, schematics, etc.) in case you want to know more.