Tyler Levine

Hi @junderw, I'm a software engineer at BitGo where we use a fork of bitcoinjs-lib for our utxo wallets. We're really interested in helping support taproot in bitcoinjs-lib, is there...

I think WASM support is [wide spread enough](https://caniuse.com/wasm) that we wouldn't be too concerned with dropping support for older browsers. However, my understanding is that this would require the `unsafe-eval`...

I think what you're asking for can be done with a custom metric constructor. See [here](https://docs.rs/prometheus-client/0.21.2/prometheus_client/metrics/family/trait.MetricConstructor.html) for details.