# cuixueshe/earthworm

Learning English through the method of constructing sentences with conjunctions

Repository: https://github.com/cuixueshe/earthworm
Canonical: https://ross.abutalabs.com/products/earthworm
Homepage: https://julebu.co
Language: TypeScript
License: AGPL-3.0
License Family: copyleft
Last push: 2024-11-14T23:35:15+00:00

## Health v2 (maintenance only)
Score: 26/100 (v2, computed 2026-09-03T02:20:16.233290+00:00)
- activity 0, release rhythm 35, longevity 68
- inputs: {"age_days": 965, "days_push": 657, "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 11007, forks 1342 (observed 2026-08-28T04:10:45.849447+00:00)

## What it is
Earthworm (now the commercial product 句乐部/Julebu) is an open-source web application for learning English by constructing sentences word-by-word with conjunctions, using gamified mechanics like combos, ratings, and leaderboards. It is a self-hostable full-stack TypeScript app (client + API) backed by Postgres, Redis, Docker, and Logto authentication.

## Use cases
- learn english by typing out sentences word by word
- practice english sentence construction with gamified combos
- self-host an english learning web app
- spaced repetition review of english vocabulary in context
- create custom english courses from any text material
- gamified alternative to flashcard vocabulary apps

## When to choose
- you want a free, self-hosted, gamified English learning tool
- you learn better by producing full sentences than memorizing isolated words
- you want to run the service yourself for a class or personal use

## When to avoid
- you need a mobile app - it is designed for desktop keyboard practice
- you want a turnkey hosted service without running Postgres, Redis, Docker, and Logto yourself
- you need languages other than English

## Facets
- artifact type: application
- maturity: active
- function: web-framework, auth, chatbot, self-hosted, gui
- domain: education, web-development, self-hosted
- platform: self-hosted, cross-platform
- tags: english-learning, language-learning, gamification, sentence-construction, spaced-repetition, self-hosted, vue, nestjs, natural-language-processing, web-server, nodejs, docker

## Member repositories
- cuixueshe/earthworm (main) score 26

## Provenance
- Observed fields: from GitHub, fetched 2026-08-28T04:10:45.849447+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 2026-08-29T17:17:13.777737+00:00, confidence not recorded.
  - readme: https://github.com/cuixueshe/earthworm (fetched 2026-08-28T04:10:45.849447+00:00, sha 80acf0f46d4a)
  - homepage: https://julebu.co (fetched 2026-08-29T08:16:41.432117+00:00, sha 6143950dc160)
  - site_page: https://julebu.co/docs (fetched 2026-08-29T08:16:41.435948+00:00, sha b99993e43f72)
  - site_page: https://julebu.co/about (fetched 2026-08-29T08:16:41.442847+00:00, sha b62fb2ee5c36)
  - site_page: https://julebu.co/releases (fetched 2026-08-29T08:16:41.438330+00:00, sha fb496a5191f5)
- Data as of 2026-08-30T08:39:29.467469+00:00.