# aosabook/aosabook

The Architecture of Open Source Applications

Repository: https://github.com/aosabook/aosabook
Canonical: https://ross.abutalabs.com/products/aosabook
Language: HTML
License: NOASSERTION
License Family: other
Last push: 2025-08-30T16:53:27+00:00

## Health v2 (maintenance only)
Score: 50/100 (v2, computed 2026-09-03T02:20:16.233290+00:00)
- activity 39, release rhythm 35, longevity 100
- inputs: {"age_days": 4713, "days_push": 368, "days_rel": null, "gap_med": null, "n_releases_24m": 0}
- flags: no_releases, no_license
- formula: round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10)

## Adoption (not part of the score)
Stars 1445, forks 243 (observed 2026-08-28T04:04:45.198190+00:00)

## What it is
The source for 'The Architecture of Open Source Applications', a book series analyzing how well-known open source projects are designed and built. The repository contains the book's LaTeX/HTML sources and build tooling.

## Use cases
- learn how large open source systems are architected
- study real-world software design case studies
- find reading material on software architecture
- understand internals of projects like nginx, LLVM, and matplotlib
- contribute corrections or chapters to an open architecture book

## When to choose
- you want in-depth architectural walkthroughs of real open source projects
- you prefer free, openly licensed educational material
- you are teaching or studying software design patterns at scale

## When to avoid
- you need hands-on tutorials or runnable code examples
- you want current documentation for a specific tool's latest version
- you need a quick reference rather than long-form chapters

## Facets
- artifact type: learning-resource
- maturity: stable
- function: documentation
- domain: developer-tools, tutorials, programming-languages
- platform: -
- tags: book, open-source-architecture, case-studies, software-design, latex, architecture, web

## Member repositories
- aosabook/aosabook (main) score 50

## Provenance
- Observed fields: from GitHub, fetched 2026-08-28T04:04:45.198190+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 2026-08-30T04:36:13.288061+00:00, confidence not recorded.
  - readme: https://github.com/aosabook/aosabook (fetched 2026-08-28T04:04:45.198190+00:00, sha 3fa92f9cf2bd)
- Data as of 2026-08-30T08:39:29.467469+00:00.