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  "lessonId": "distributed-01",
  "contentHash": "099854f4a238be06a63c9181a954d2abd88a02db6567e62e94e58a2c2852e3c1",
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  "generatedAt": "2026-10-20T10:46:02.815169+00:00",
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    "deviceCount": 4,
    "jax": "0.9.2",
    "numpy": "2.4.4",
    "matplotlib": "3.10.8"
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  "stdout": "Row-shard shapes: [(2, 4), (2, 4), (2, 4), (2, 4)]\nColumn-shard shapes: [(8, 1), (8, 1), (8, 1), (8, 1)]\nColumn sums: [112. 120. 128. 136.]\n",
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