The swap
A test asset for DMS, through pallet-dex, from Eoonia, on the public testnet, in runtime 220, on 14 September 2026. Included, finalized, reserves updated, fee split — 80 % burned, 20 % to the pool's treasury.
Why it had never happened
The pool's treasury account (emp/dext) had never held the existential deposit and therefore did not exist in state. Every swap computed correctly and failed at the step of paying the fee share into an account the runtime could not find. Unit tests passed because the mock genesis funded every account. EmpooScan showed no swaps, and its indexer was itself intermittently down, so nobody asked.
The fix
Runtime 220 reorganised treasuries per pool. One DMS from the sudo account created the treasury. The next swap settled. Eoonia's DEX flow was then verified as part of its integration matrix.
What it proved
That wired and exercised are different states, and only the second counts. The DEX had been listed as functional in the pallet reference, the architecture document and the website for months. All of them were describing a pallet that could not do the one thing it was for. The ecosystem's status pages now carry both columns, pallet by pallet.
What it did not prove
That the DEX is ready for value. It is unaudited (the DeFi audit is a mainnet-gate item), its AMM invariant has no formal proof, its pools hold test assets, and it has settled — as of this writing — a handful of swaps. The liquidity allocation that would seed a real pool is a mainnet concept controlled by a multisig not yet constituted.
The pattern
The same day: the AI reward pool that had never paid (no operator authorised); the treasury cap that had been meaningless (a 12-hour window). Three treasuries, three ways of holding funds nobody could move. Nothing is free became a checklist item: for every account a pallet pays into, show the transaction that created it.
The conference this page described
Redefined an experience for another ecosystem's attendees. EmpoorioChain's first swap redefined done for its own team, which is the more useful outcome.
Based on the runtime 220 notes and the Eoonia audit block 13 (2026-09-14).