I implemented a WASM interpreter recently. Didn't know WASM when I started. GC wasn't particularly difficult. Type canonicalization was the trickiest bit. Did a

I implemented a WASM interpreter recently. Didn't know WASM when I started. GC wasn't particularly difficult. Type canonicalization was the trickiest bit. Did a small subset of stringref, too. If there's anything I'm intimidated by with WASM implementation it's all the SIMD instructions.