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Upstream unreachable: upstream-concurrency:4. From the Next container, FOOTBALL_API_BASE_URL must reach your API (try host api:8000; in Docker Compose often http://api:8000 on the same network).
Upstream unreachable: upstream-concurrency:4. From the Next container, FOOTBALL_API_BASE_URL must reach your API (try host api:8000; in Docker Compose often http://api:8000 on the same network).