@romac In [ibc-rs](https://github.com/informalsystems/ibc-rs/tree/master/modules) module and `dependencies.tendermint` module, there are 4 crates that's incompatible with no-std, as below: - [X] anomaly: to be removed? #988 - [X] thiserror #988 - [X] serde-repr: replace with alternative? no longer relevant - [ ] toml If you have any progress of processing the crates above for no-std please update here, thank you.