Nine Ideas from the Hackathon Plan — and Ten Gaps a First Builder Will Hit

Nine ideas, from the plan

Native DeFi

1. A liquidity aggregator across the testnet's DMS pools with slippage protection.
2. A limit-order system on pallet-intents, with a solver.
3. An MEV monitoring dashboard on TxCommitted / TxRevealed events with webhook alerts.

AI / zkML 4. Inference with a Groth16 proof verified on chain via aiServing.submit_inference_result. 5. A reputation system for Ailoos nodes from on-chain contribution records. 6. A dataset marketplace paid in testnet DMS with zkML integrity proofs, sourced from SynoodoS.

Identity and privacy 7. Verifiable credentials with on-chain revocation on pallet-identity-ssi. 8. An identity wallet with N-of-M multisig and recovery guardians on account abstraction. 9. An ML-DSA (post-quantum) signature demonstration with a sealed account.

Ten gaps you will hit (known)

1. No public faucet. Ask for testnet DMS.
2. The explorer's indexer may lag or misdecode; keep your own hashes.
3. Custom signed extensions: any library but Polkadot.js, the Dart SDK or the Rust SDK will fail with a codec error.
4. Rate limit on public RPC: ~10 req/s, one-hour ban. Run a node.
5. eth_getCode at latest returns empty for deployed contracts; verify by nonce.
6. DEX pool treasuries must exist (funded above the existential deposit) before a pool settles fees.
7. emp_* RPC methods are unpublished; signatures may change.
8. The reward pool pays per era and has never paid; do not build a demo that depends on a payout landing in 48 hours.
9. One DID exists; the identity APIs are not publicly deployed — run the issuer locally.
10. Metadata changes every runtime upgrade; upgrades are frozen during the event, but refresh anyway.

The eleventh

The best submission will be the one that finds a gap not on this list and documents it with a reproduction. The first swap found a missing treasury account; the first signed transaction found a two-byte envelope nobody had written down. The ecosystem's most valuable outputs of 2026 were bug reports, and it scores documentation at 15 %.

Status

The hackathon is not yet announced. The pallets are on the public testnet. Nothing above requires waiting.

Based on TESTNET_HACKATHON_PLAN.md and the September 2026 engineering notes.