Eight hard problems. Each closed with proof read back on chain.
Ten assets into one, proven to fit a single transaction.
An audit that corrected the client's own supply number before the economics were set.
Rescuing collection art from a dying gateway, and the 429 that masks a 404.
A packed struct that passed every test and access-violated on mainnet.
Encoding a bank's four-signature rule that a flat multisig cannot express.
The comparison that decides whether a real deposit is accepted or thrown away.
Replacing a poll that burned a monthly quota with one filtered stream.
A 1000-SOL route that would not fit in a transaction, made to fit without widening slippage.
The router, the program, the migration. Built on metal we run ourselves.