To migrate from AWS Managed Blockchain (Hyperledger Fabric) to a self-managed setup or another cloud provider like Ucartz, start by exporting critical artifacts. Use the AWS CLI or SDK to retrieve the ledger data via the GetBlock and GetLedger APIs. Manually back up the genesis block, MSP certificates, admin credentials, and channel configurations. Store peer and orderer certificates securely. Recreate the network on the target setup using these backups. For chaincode, ensure you have source code and metadata. While AWS doesn’t provide a full one-click export, methodical backup of each component ensures a smooth transition to a self-hosted environment.