Amaru as a toolkit

[jeluard]

Amaru is designed to allow advanced users to plug their own logic for key components (e.g. storage, mempool).
This approach could be taken a step further by exporting selected internals and making them available programmatically to those users.
User provided logic would then be compiled in the main amaru binary, and allow to tweak parts of the internals by hooking into selected events (e.g. block/transaction processing, scripts execution, parameter changes, ...).

The concrete syntax for this is yet to be defined.

Potential use-cases

Having such an extension mechanism unlocks some interesting use-cases, among others:

• fat wallet à la daedalus
• foundation for indexers, relay, DApps backbone , L2
• SPOs customized nodes (e.g. custom RPC mechanism -ogmios, utxorpc-, bootstrap from mithril)
• platform for experimentations (zk, bitcoin integration, agentic platform, ..)

Related work

Recently some client in the ethereum ecosystem started to ship related features. this proposition is inspired by those.

• Reth Execution Extensions (and examples #1, #2)
• Geth LiveTracer
• https://github.com/lambdaclass/ethrex
• https://github.com/openmina/openmina/blob/develop/ARCHITECTURE.md

[abailly]

That sounds quite interesting @jeluard! In my own context, the fat wallet à la daedalus part sounds particularly exciting and aligns nicely with stuff we discussed with @KtorZ in Zurich.

[jeluard]

Great to hear! One idea to move things forward would be to start collecting the data / hooks that would be needed for this use-case.