Generic nitro v3.10.1 strictly refuses DA on a DAC=false chain, so DAC=true override did not work (confirmed live: node still errored 'AnyTrust DA usage set to false'). ApeChain's canonical config is DAC=false; its official build public.ecr.aws/i6b2w2n6/nitro-node:apechain-v3.5.6 accepts DAC=false + AnyTrust DAS. Revert DAC to false (canonical) + keep das rest-aggregator. Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>