Commander in commander.go is the main App struct.
rollupLoop periodically creates rollupLoopIteration. Batches have min and max size.
accounts.go: syncAccounts Synchronizes on-chain account state to internal state.
batches.go: syncBatches Synchronizes on-chain batch state to internal state.
registered_tokens.go: syncTokens Synchronizes on-chain registered tokens to internal state.
new_block.go: newBlockLoop Watches for new blocks. Triggers syncing methods.
syncForward: Sync a batch of blocks (batched for internal efficiency, not visible from the outside).