[PoignardAzur]

> Is there any other lightweight UI Framework supporting software-rendering and framebuffer for embedded devices (RISC-V 64bit musl, LicheeRV Nano)?

There's no crates.io release yet, but the master branch of Xilem and Masonry is somewhat renderer-agnostic, and lets you use vello_cpu, which does SIMD-assisted software rendering (I don't know how good the RISC-V support is).

I say "somewhat" because it's supported by the internals crates (xilem_masonry, masonry_core), but not by the composition root crate (xilem), so you have to implement your own integration with winit, but we're getting there!