# apenwarr/redo

Smaller, easier, more powerful, and more reliable than make.  An implementation of djb's redo.

Repository: https://github.com/apenwarr/redo
Canonical: https://ross.abutalabs.com/products/redo
Homepage: https://redo.rtfd.io/
Language: Python
License: Apache-2.0
License Family: permissive
Topics: djb, makefile, build-system, build-automation, parallel, dependency
Last push: 2023-11-07T13:41:36+00:00

## Health v2 (maintenance only)
Score: 32/100 (v2, computed 2026-09-02T17:46:02.011165+00:00)
- activity 0, release rhythm 35, longevity 100
- inputs: {"age_days": 5772, "days_push": 1030, "days_rel": null, "gap_med": null, "n_releases_24m": 0}
- flags: no_releases
- formula: round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10)

## Adoption (not part of the score)
Stars 1845, forks 139 (observed 2026-08-28T04:05:43.365254+00:00)

## What it is
A Python implementation of Daniel J. Bernstein's redo build system, designed as a smaller, more powerful, and more reliable alternative to make. It supports parallel builds, improved logging, extensive automated tests, and debugging features.

## Use cases
- replace make with a simpler build system
- run parallel builds with dependency tracking
- build software using do scripts instead of makefiles
- incrementally rebuild only changed targets
- learn djb's redo design from a mature implementation

## When to choose
- you find make and makefiles confusing or error-prone
- you want a recursive, script-based build system with parallelism
- you prefer small, composable build tools over heavy build frameworks

## When to avoid
- your project already depends on a mature make-based toolchain
- you need IDE or ecosystem integration built around make or cmake
- you need a build system with a large community and plugin ecosystem

## Facets
- artifact type: cli-tool
- maturity: stable
- function: build-tool, cli
- domain: developer-tools
- platform: python, cli, cross-platform
- tags: build-system, make-alternative, djb-redo, parallel-builds, dependency-tracking, command-line, automation, linux, macos

## Member repositories
- apenwarr/redo (main) score 32

## Provenance
- Observed fields: from GitHub, fetched 2026-08-28T04:05:43.365254+00:00.
- Health v2: computed from the inputs above; adoption is never an input.
- Inferred fields (summary, facets, guidance): AI-extracted, prompt v1, taxonomy v1, on 2026-08-30T03:17:54.424528+00:00, confidence not recorded.
  - readme: https://github.com/apenwarr/redo (fetched 2026-08-28T04:05:43.365254+00:00, sha c5a82bfd6afd)
- Data as of 2026-08-30T08:39:29.467469+00:00.