One of the more interesting and fun things you can do these days is get a ULX3S[1], use the community RISC-V project to turn it into a fully functional RISC-V s

One of the more interesting and fun things you can do these days is get a ULX3S[1], use the community RISC-V project to turn it into a fully functional RISC-V system, and then design your own vector instructions to play around with different ways of doing things. All for < $200 US which is always amazing to me. [1] https://www.crowdsupply.com/radiona/ulx3s https://www.crowdsupply.com/radiona/ulx3s (85T version recommended)