# fastbuild/fastbuild

High performance build system for Windows, OSX and Linux. Supporting caching, network distribution and more.

Repository: https://github.com/fastbuild/fastbuild
Canonical: https://ross.abutalabs.com/products/fastbuild
Homepage: https://fastbuild.org
Language: C++
License Family: other
Last push: 2026-08-13T10:00:21+00:00

## Health v2 (maintenance only)
Score: 88/100 (v2, computed 2026-09-03T02:20:16.233290+00:00)
- activity 97, release rhythm 69, longevity 100
- inputs: {"age_days": 4183, "days_push": 20, "days_rel": 129, "gap_med": 73.5, "n_releases_24m": 7}
- flags: no_license
- formula: round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10)

## Adoption (not part of the score)
Stars 1389, forks 418 (observed 2026-08-28T04:04:35.488111+00:00)

## What it is
FASTBuild is a high-performance open-source build system for Windows, macOS, and Linux, focused on minimizing compile times for full builds and local iteration. It supports object caching and distributed network compilation across a wide range of compilers and target architectures.

## Use cases
- speed up large C++ project builds
- distribute compilation across network machines
- cache build objects to avoid recompilation
- build games on Windows, OSX and Linux
- reduce iteration compile times for game studios

## When to choose
- you have large C/C++ codebases with slow compile times
- you want distributed builds and object caching without expensive tooling
- you are a game studio or team needing fast full and incremental builds

## When to avoid
- you need a general-purpose build tool with a large plugin ecosystem
- your project relies on build-system features like complex dependency graphs outside C/C++ compilation
- you require AI-assisted contribution workflows (the project bans LLM-generated code)

## Facets
- artifact type: cli-tool
- maturity: active
- function: build-tool, caching, compiler
- domain: developer-tools, performance
- platform: windows, cpp, cli
- tags: distributed-compilation, build-cache, game-development, c-plus-plus, macos, linux

## Member repositories
- fastbuild/fastbuild (main) score 88

## Provenance
- Observed fields: from GitHub, fetched 2026-08-28T04:04:35.488111+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 2026-08-30T04:39:42.331775+00:00, confidence not recorded.
  - readme: https://github.com/fastbuild/fastbuild (fetched 2026-08-28T04:04:35.488111+00:00, sha df6007f31030)
  - homepage: https://fastbuild.org (fetched 2026-08-29T11:54:52.232756+00:00, sha 44136fa355b3)
- Data as of 2026-08-30T08:39:29.467469+00:00.