# duojs/duo

A next-generation package manager for the front-end

Repository: https://github.com/duojs/duo
Canonical: https://ross.abutalabs.com/products/duo
Language: JavaScript
License Family: other
Archived: true
Last push: 2017-12-31T06:40:40+00:00

## Health v2 (maintenance only)
Score: 10/100 (v2, computed 2026-09-03T02:20:16.233290+00:00)
- activity 0, release rhythm 35, longevity 100
- inputs: {"age_days": 4529, "days_push": 3167, "days_rel": null, "gap_med": null, "n_releases_24m": 0}
- flags: no_releases, archived, no_license
- formula: round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10)

## Adoption (not part of the score)
Stars 3395, forks 114 (observed 2026-08-28T04:08:02.403105+00:00)

## What it is
Duo is a front-end package manager and build tool that pulls JavaScript, CSS, and HTML dependencies directly from GitHub with semantic versioning, bundling them without requiring a manifest file. It blends ideas from Component, Browserify, and Go's import system and supports source transforms like CoffeeScript and Sass.

## Use cases
- manage front-end dependencies without a package manifest
- bundle javascript and css for the browser from a single command
- install npm packages straight from github repositories
- compile coffeescript or sass as part of a front-end build
- replace browserify or component for front-end asset bundling

## When to avoid
- you are starting a new front-end project - use npm, yarn, pnpm, or vite instead
- you need actively maintained tooling or security updates
- you need a package registry with lockfiles and broad ecosystem support

## Facets
- artifact type: cli-tool
- maturity: abandoned
- function: package-manager, build-tool, cli
- domain: frontend, web-development, developer-tools
- platform: cli, cross-platform
- tags: frontend-package-manager, javascript-bundler, css-bundling, github-dependencies, source-transforms, browserify-alternative, command-line, nodejs

## Member repositories
- duojs/duo (main) score 10

## Provenance
- Observed fields: from GitHub, fetched 2026-08-28T04:08:02.403105+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 2026-08-29T18:38:56.328929+00:00, confidence not recorded.
  - readme: https://github.com/duojs/duo (fetched 2026-08-28T04:08:02.403105+00:00, sha 6f32f5d2cb5c)
  - registry_npm: https://registry.npmjs.org/duo (fetched 2026-08-29T09:33:01.574294+00:00, sha 49f6a4c2b17f)
- Data as of 2026-08-30T08:39:29.467469+00:00.