The Lumen project (Elixir/Erlang compiled to WASM) is seeking community help to start implementing certain Erlang features. The first is ETS. We have a detailed explanation of what will be required to implement ETS in Lumen:
If you have Rust experience all help would be greatly appreciated!
I pinged Paul to see if he can provide more details but there is no formal Erlang/BEAM spec and the team is having to dig through Erlang source to ensure compatibility. The Lumen test suite is asserting the behavior as we understand it as things go along.