npm install automatically downloads the correct version of the wasm bundle.
rm -rf bin/repc
ln -s /path/to/repc/pkg/Release bin/repc
npm run build
Note that if you run npm install subsequently, you'll nuke that link and have to create it again.
The build script copies to a new directory, so you need to re-run npm run build each time you modify repc.
We continuously track performance across a variety of benchmarks. Results here:
https://raw.githack.com/rocicorp/replicache-sdk-js/perf-data/dev/bench/index.html