# composer/installers

A Multi-Framework Composer Library Installer

Repository: https://github.com/composer/installers
Canonical: https://ross.abutalabs.com/products/installers
Language: PHP
License: MIT
License Family: permissive
Last push: 2026-07-01T21:02:33+00:00

## Health v2 (maintenance only)
Score: 63/100 (v2, computed 2026-09-03T02:20:16.233290+00:00)
- activity 90, release rhythm 8, longevity 100
- inputs: {"age_days": 5189, "days_push": 63, "days_rel": null, "gap_med": null, "n_releases_24m": 0}
- flags: none
- formula: round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10)

## Adoption (not part of the score)
Stars 1441, forks 400 (observed 2026-08-28T04:04:44.275945+00:00)

## What it is
A Composer plugin that lets PHP package authors install their packages into framework-specific directories based on declared package types. It supports install path mapping and customization for dozens of PHP frameworks and CMSes.

## Use cases
- install composer packages into framework-specific directories
- define custom install paths per package in composer.json
- distribute plugins and themes for PHP frameworks via composer
- avoid writing a custom composer installer for a framework
- map package types like cakephp-plugin or bitrix-module to install locations

## When to choose
- you maintain a PHP framework or CMS whose packages need non-vendor install paths
- you publish framework plugins/themes and want standard composer installability
- you need per-package install path customization in composer

## When to avoid
- your framework already works with the default composer vendor directory
- you are on Composer 2.1+ and can use getInstalledPackagesByType instead of custom installers
- your package needs special installation handling beyond path mapping

## Facets
- artifact type: library
- maturity: maintenance
- function: package-manager, plugin-system, developer-tools
- domain: developer-tools, web-development
- platform: php, cli, cross-platform
- tags: composer, composer-plugin, package-types, install-paths, php-frameworks, php

## Member repositories
- composer/installers (main) score 63

## Provenance
- Observed fields: from GitHub, fetched 2026-08-28T04:04:44.275945+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 2026-08-30T04:36:27.871754+00:00, confidence not recorded.
  - readme: https://github.com/composer/installers (fetched 2026-08-28T04:04:44.275945+00:00, sha 4c3335c4d0a7)
- Data as of 2026-08-30T08:39:29.467469+00:00.