Solo Machine Client Needs Love

[ebuchman]

The Solo Machine client of ICS06 is underdocumented and largely unused, but offers awesome powers.

The Cosmos-SDK documentation page actually 404s (see link here).

Principally it allows a Cosmos account key (including multisig!) to function as its own blockchain, connected over IBC. Which means it can create assets however it likes and send them to other blockchains. It can also be used as a proxy client to bridge to other blockchains before a full blown ICS02 client implementation is ready for that chain.

Todo:

• Client support for Solo machines in Go
• Client support for Solo machines in Rust
• Client support for Solo machines in JS
• Add documentation for solo machines to Cosmos-SDK IBC docs

[damiannolan]

The solomachine client got much more love in the ibc-go/v7 release.

In particular see:

• ADR 007: Solo machine signature construction #1865
• refactor: solomachine generic verification methods and signbytes simplification #1687

Solomachines written in Go, Rust or JS are all supported by the on-chain Go code - implementations written in Rust and JS can compile the protos to their desired languages using available tooling. As long as solomachines communicate using the protobuf API then compatibility is all g 👍

cc @colin-axner, can we close this? wdyt?

[crodriguezvega]

I discussed with @colin-axner and we decided it is fine to close the issue.