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A programming-problem collection with community discussion

Project-oriented coding courses across technical subjects

Programming explanations alongside algorithm practice

A topic-organized collection of programming tutorials

A platform for interactive worksheets with automatic marking and tools for teachers to create activities.

A project-oriented programming editor, code browser, and analyzer for navigating source.

Prepare imported 3D scenes for PDF, web, rendering and VR delivery

Explore data and create statistical summaries and graphics in R's language environment.

A free, open-source engine and editor for creating 2D and 3D games across desktop, mobile, and web targets.

Shape a text editor into a personal development environment using Emacs Lisp and an extension package system.

Interactive R lessons inside the R console

Programming practice that moves from guidance to independent solving

Godot learning with interactive apps and game projects

An interactive browser notebook for mixing executable code, narrative, and rich results in one computational document.

Create narrated, annotated lessons with an interactive whiteboard for students.

Create 3D interactions with object states, events and transition controls

Add interactive, mobile-friendly maps to a web page with a JavaScript library.

Edit Python in a scientific IDE with an interactive console, variable inspection, plots, and debugging tools.

Add interactive choices, prompts, and terminal styling to shell scripts without writing Go code.

Build Python HTTP APIs with typed parameters and automatically generated OpenAPI documentation.

Ingest streaming or batch data into an analytics database built for fast interactive queries.

Interactive email campaigns with AMP forms, journeys and fallback content

Define metrics as code and explore them through dashboards or natural-language analysis.

Website popups with language-specific targeting and interactive design previews.