airbnb/lottie-ios
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GradeB

A top-tier open source project. Docs, tests, and CI are all in excellent shape.

Top 22% of 5,156 graded repos

An iOS library to natively render After Effects vector animations

Documentation85
Engineering79
Health100
Swift26,765Apache-2.01mo ago

Top fixes

Highest-impact changes first, ranked by point weight

7 to address
  1. 1
    Tests18pt

    Wire your tests to a documented command (e.g. a test script in your build config) so the suite is reproducible.

  2. 2
    Install and run instructions9pt

    Add a .env.example listing all required environment variables so contributors know what to set up.

  3. 3
    Reproducibility6pt

    Add a Dockerfile, .nvmrc, or .python-version to pin the runtime version and make the environment reproducible.

  4. 4
    Reproducibility6pt

    Add .github/dependabot.yml with at least one package-ecosystem entry so dependencies are updated automatically.

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Scorecard

Every check, grouped by category and sorted worst-first

Documentation

85

Contributing guide5pt25

Contributing guidance is in the README, not a dedicated CONTRIBUTING.md (−20 pts).

→ Moving it to a CONTRIBUTING.md makes it easier to find and keeps the README focused. A dedicated file earns +47 pts base.

Install and run instructions9pt90

README documents how to install the project.

README12pt100

README is present.

License6pt100

Licensed under Apache-2.0.

Engineering

79

Linting and formatting5pt0

No linter or formatter config found.

→ Add a linter config such as .eslintrc.json, .prettierrc, ruff.toml, or .golangci.yml to enforce consistent code style.

Reproducibility6pt70

Lockfile present (Gemfile.lock). Installs are reproducible.

Tests18pt80

Test files detected (Tests).

CI/CD14pt100

CI is configured (.github/workflows/main.yml).

Issue and PR templates6pt100

Issue or PR templates present.

Project health

100

Dependency manifest6pt100

Dependency manifest found (Gemfile).

Repository metadata5pt100

Repository has a description.

Activity5pt100

Actively maintained (pushed within the last month).

Housekeeping3pt100

.gitignore present.

Repository files23 root entries
  • _AeFiles
  • _Gifs
  • .github
    Good: CI is configured (.github/workflows/main.yml).
    Good: Issue or PR templates present.
  • Example
  • Lottie.xcodeproj
  • Lottie.xcworkspace
  • script
  • Sources
  • Tests
    Good: Test files detected (Tests).
  • .gitignore
    Good: .gitignore present.
  • .npmignore
  • .spi.yml
  • Gemfile
    Good: Dependency manifest found (Gemfile).
  • Gemfile.lock
    Good: Lockfile present (Gemfile.lock). Installs are reproducible.
  • index.js
  • LICENSE
    Good: Licensed under Apache-2.0.
  • lottie-ios.podspec
  • package.json
  • Package.resolved
  • Package.swift
  • Rakefile
  • README.md
    Good: README is present.
    Good: README is well structured with multiple sections.
    Good: README includes screenshots or visuals. Great for first impressions.
    Good: README has code examples.
    Good: README links to a live demo or deployed app.
    Good: README includes status badges.
    Good: README documents how to install the project.
    Good: README documents how to run the project.
  • Version.xcconfig
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