This repository has a template for asynchronous solana programs capable of supporting full application controlled execution (ACE) on-chain

The core crate has the traits, and counter has an example implementor where decrements are prioritized before increments.

Run cargo run --example counter from the counter directory after building the program with cargo-build-sbf to see it in action.

All of this code is unaudited and partially vibe coded so use at your own risk