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Fly.io notes for developers

Master Fly.io with a curated set of 2 developer notes — core concepts, patterns, and interview prep. Maintained by the DevRecall team.

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01 · Fly.io

Multi-Region, Volumes & Postgres

Fly.io: Multi-Region, Volumes & Postgres. Multi-Region Deployment. # Add regions -- Machines get created in each, and Anycast routing # sends each user's request to their nearest healthy instance fly regions add fra nrt …

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02 · Fly.io

fly.toml, Deploys & Machines

Fly.io: fly.toml, Deploys & Machines. Fly.io deploys apps as Docker containers run inside Firecracker microVMs ("Machines") across many geographic regions -- Anycast routing sends each user's request to a nearby running …

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