bpmn-io/bpmn-js

App Ideas Collection is a GitHub repository maintained by Florin Pop and Jim Medlock that catalogs application ideas developers can build to practice their skills, organized into three difficulty tiers. Each entry defines an objective, user stories, optional bonus features, and resource links rather than a bare project name, and the repository is sponsored by CodeRabbit and licensed under MIT.

Strapi is a self-hosted headless CMS that auto-generates REST and GraphQL APIs from content model definitions you build visually with the Content-Type Builder — no code required on the API side. It ships with authentication, granular roles and permissions, a media library, i18n, and draft/publish workflows out of the box, and the request pipeline (Routes → Middlewares → Controllers → Services) is fully overridable at each layer. TypeScript is first-class and you can pair it with SQLite for local dev or PostgreSQL/MySQL/MariaDB in production. The plugin system and customizable admin panel are real extensibility points, not marketing. The tradeoff: there's no official Docker image (you roll your own from your project), and major version upgrades have been historically painful — the migration docs are thorough but the process still demands attention. Worth it if you need full control over your content infrastructure and don't mind owning the deployment; less ideal if you want something you can set and forget.

33 JavaScript Concepts organizes core JavaScript topics -- from primitive types to the event loop to design patterns -- into a linked list of focused explanations with code examples, aimed at developers filling gaps in their fundamentals.

Docusaurus is a static-site generator built by Meta that turns Markdown files into a self-hosted documentation website with a docs section, an optional blog, and i18n support baked in from the start.