Very cool! I just started to dvelve into RISC-V, and the book I'm reading (not in English) offers their own emulator[1], which, at a glance, is much simpler than QEMU, and comes with a weird license[2]. I wonder if people actually used it, since it looks like an academic project. Maybe I can also follow this tutorial and test it out.

[1] https://github.com/NJU-ProjectN/nemu/tree/master

[2] https://github.com/NJU-ProjectN/nemu/blob/master/LICENSE

Edit: wrong link