I created a simple FEP-ae97 web client:
https://codeberg.org/silverpill/fep-ae97-web-client
It is written in #Rust using Leptos and APx. Everything is compiled to WebAssembly and the application can be served as a static website.
This technology stack is very promising, but I think it is not yet ready for anything serious. The development process is slower compared to JavaScript/TypeScript, and the resulting binary is huge - it's 4.5 MB already (without optimizations). So I am going to keep an eye on it, but focus on building another FEP-ae97 client using a different approach.