Dear BraTS 2026 Organizers, Our team is preparing its final Docker solution for Task 3 (BraTS-GoAT). We understand from the official instructions that the submitted container will be evaluated on an NVIDIA A10G with the specified CPU, memory, shared-memory, runtime, networking, and input/output constraints. Before making our final submission, we would like to verify that our Docker container starts and runs successfully on the organizer-equivalent A10G environment. Our AWS EC2 g5 quota requests are currently under appeal because this is a new AWS account. Could you please clarify whether there is an organizer-provided validation or smoke-test queue that: 1. Executes a candidate Task 3 Docker image on the official A10G environment; 2. Verifies container startup, GPU/CUDA compatibility, runtime, memory, read-only input, and output formatting; 3. Returns execution or error logs without exposing hidden test data; and 4. Does not consume or lock our one final testing submission? If such a validation mechanism exists, could you please provide its queue name, submission limit, and instructions? We are not requesting hidden data or hidden-test scores—only container compatibility validation before the final submission. Thank you very much for your guidance.