[marssaxman]

Such things have existed for several years already! Here are some examples:

  https://sifive.com/boards/hifive-premier-p550
  https://sifive.com/boards/hifive1-rev-b
  https://www.beagleboard.org/boards/beaglev-fire
  https://starfivetech.com/en/site/boards
  https://milkv.io/docs/duo/getting-started/duo256m

There is even a Raspberry Pi model which includes two RISC-V cores alongside its ARM cores:

  https://www.raspberrypi.com/products/rp2350/

[Levitating]

Milk-V has much more than the duo. I have a few of their products and they're very cool!

The biggest problem with them is software. Many boards only have buildroot SDKs or niche and outdated. Fedora related images.

Though if you're experienced you can port your own linux distributions to these boards.

[nine_k]

But Duo is a device in the form factor of Arduino Nano that can run actual Linux (the 256MB RAM version at least). It's quite a leap.