xeus-haskell -- GHC/Wasm Backend Integration Prototype

This project aims to integrate the official GHC/WebAssembly backend into xeus-haskell, a Jupyter kernel for Haskell. Currently, the kernel relies on MicroHs, which, while lightweight, lacks support for the vast majority of the Hackage ecosystem. I will implement a dual-backend architecture by introducing a new C++ bridge and a reactor-model Wasm REPL module based on the GHC API. Key deliverables include: GhcRepl: A GHC-based WebAssembly REPL module maintaining persistent session state. C++ Bridge: A new interface (ghc_repl.cpp) to communicate with the GHC/Wasm runtime via the Wasm C API. Backend Abstraction: A unified virtual interface to allow seamless switching between MicroHs and GHC/Wasm. WASI Integration: A configured browser shim to handle I/O and package database access within JupyterLite