fiatjaf.com/nostr mod for TinyGo/Wasm has started working. There are likely some trade-offs. I still need to check whether everything I need will actually run.

https://github.com/1l0/nostrlib/tree/tinygo

Comparison with standard Go/Wasm:

- Binary size: < 0.1x

- Execution speed: similar or slightly slower (with opt=2)

- Memory usage: ~0.75x