GitHub Isn't Just a Remote Git Server: How Spoke Clusters, Fork Alternates, and Actions Runner Sandboxes Work Under the Hood
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actionability 7
community 6
strategic 7
personal 9
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Deep dive into GitHub's distributed architecture, highly relevant to platform engineering.
Summary
A visual, 10-minute deep dive into GitHub distributed architecture. Learn how Spoke clusters replicate Git objects, how fork networks share terabytes via alternates, how secret refs/pull/ branches work, and how ephemeral Actions runners authenticate with keyless OIDC.