It sounds like the answer to “can I run this application on RISC-V” is very dependent on what the backend for that application is. What’s the backend stack for your websites? Are they static HTML sites, or do they have other components? Someone else mentioned that they built postgres and mariadb Docker images for RISC-V, but I don’t even know which programming languages can be compiled for RISC-V right now.
Wow, that name is familiar! I had no idea that the maintainer of Calibre is also the maintainer of kitty (a terminal emulator). Someone is busy!