we actually already have nostrscript integrated into damus ios, I wrote a single-file C wasm interpreter, but all it does right now is run zap scripts:

https://github.com/damus-io/damus/blob/master/damus-c/wasm.c

https://github.com/damus-io/damus/tree/master/nostrscript

I wanted to build out nostrdb first so that these algos can run efficiently. I'm currently using notedeck as my main nostrdb testing bed.