# evancz/elm-architecture-tutorial

How to create modular Elm code that scales nicely with your app

Repository: https://github.com/evancz/elm-architecture-tutorial
Canonical: https://ross.abutalabs.com/products/elm-architecture-tutorial
Homepage: https://guide.elm-lang.org/
Language: Elm
License: BSD-3-Clause
License Family: permissive
Topics: elm, examples
Last push: 2019-12-30T12:16:10+00:00

## Health v2 (maintenance only)
Score: 32/100 (v2, computed 2026-09-03T02:20:16.233290+00:00)
- activity 0, release rhythm 35, longevity 100
- inputs: {"age_days": 4252, "days_push": 2438, "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 4167, forks 719 (observed 2026-08-28T04:08:37.927812+00:00)

## What it is
The official tutorial repository for The Elm Architecture, containing a collection of runnable examples (Model/Update/View pattern) that accompany the Elm guide. It teaches how to structure modular Elm web applications and influenced patterns like Redux.

## Use cases
- learn the elm architecture pattern
- understand model update view pattern
- find examples of modular elm code
- learn how redux concepts originated
- follow along with the official elm guide
- practice building elm web apps locally

## When to choose
- you are learning Elm and want hands-on compilable examples
- you want to understand the architecture behind Redux-style state management
- you are following the official Elm guide's architecture section

## When to avoid
- you need a production framework or starter template rather than tutorial code
- you are not using or evaluating the Elm language
- you need actively updated examples for the latest Elm tooling

## Facets
- artifact type: learning-resource
- maturity: maintenance
- function: frontend-framework, state-management, developer-tools
- domain: web-development, frontend, tutorials, programming-languages
- platform: browser, cross-platform
- tags: elm, elm-architecture, model-view-update, redux-inspiration, tutorial-examples, functional-programming, web-server

## Member repositories
- evancz/elm-architecture-tutorial (main) score 32

## Provenance
- Observed fields: from GitHub, fetched 2026-08-28T04:08:37.927812+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 2026-08-29T18:22:45.899645+00:00, confidence not recorded.
  - readme: https://github.com/evancz/elm-architecture-tutorial (fetched 2026-08-28T04:08:37.927812+00:00, sha 97347ee882f9)
  - homepage: https://guide.elm-lang.org/ (fetched 2026-08-29T09:13:28.030540+00:00, sha 261d154937c2)
  - site_page: https://guide.elm-lang.org/install (fetched 2026-08-29T09:13:28.039676+00:00, sha 443c842e6ec0)
  - site_page: https://guide.elm-lang.org/install/editor (fetched 2026-08-29T09:13:28.041451+00:00, sha ff774103cb17)
  - site_page: https://guide.elm-lang.org/install/elm (fetched 2026-08-29T09:13:28.043195+00:00, sha 7559e94c767c)
- Data as of 2026-08-30T08:39:29.467469+00:00.