A plain-English walkthrough of building SwiftDeploy — a declarative deployment tool in Go and Python Imagine handing someone a single index card and saying: everything you need to know about how this system runs is on this card. No digging through config files, no cross-referencing documentation, no wondering whether what's on disk matches what's actually running. Just the card. That's the idea behind SwiftDeploy. You write one file — manifest.yaml — and a CLI tool called swiftdeploy reads it and generates everything else: the Nginx configuration, the Docker Compose file, the running containers. If you delete the generated files and run swiftdeploy init again, the stack rebuilds identically. The manifest is the only thing that matters. Here's how every piece of it works. Why this matters Most deployment setups have a coordination problem. The Nginx config lives in one place. The Docker Compose file lives in another. The environment variables live somewhere else.…