Nixpacks Build Plan

The Nixpacks build plan is the JSON representation of how a source directory will be turned into a container image. A plan declares the list of providers used, top-level `variables`, `staticAssets`, `buildImage`, and an ordered set of phases (`setup`, `install`, `build`, plus any provider- or user-defined phases) along with a `start` phase. Each phase carries `cmds`, `nixPkgs`, `nixLibs`, `nixOverlays`, `nixpkgsArchive`, `aptPkgs`, `dependsOn`, `cacheDirectories`, `onlyIncludeFiles`, and `paths`. Plans can be saved and replayed via `nixpacks build --plan plan.json` to guarantee reproducible image builds.

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aid: nixpacks:build-plan
name: Nixpacks Build Plan
description: The Nixpacks build plan is the JSON representation of how a source directory will be turned
  into a container image. A plan declares the list of providers used, top-level `variables`, `staticAssets`,
  `buildImage`, and an ordered set of phases (`setup`, `install`, `build`, plus any provider- or user-defined
  phases) along with a `start` phase. Each phase carries `cmds`, `nixPkgs`, `nixLibs`, `nixOverlays`,
  `nixpkgsArchive`, `aptPkgs`, `dependsOn`, `cacheDirectories`, `onlyIncludeFiles`, and `paths`. Plans
  can be saved and replayed via `nixpacks build --plan plan.json` to guarantee reproducible image builds.
humanURL: https://nixpacks.com/docs/how-it-works
tags:
- Build Plan
- JSON
- Phases
- Reproducible Builds
properties:
- type: Documentation
  url: https://nixpacks.com/docs/how-it-works
- type: Reference
  url: https://nixpacks.com/docs/configuration/file