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A collection of games teaching web-development concepts

Native macOS context engineering and agent orchestration app

Headless, open source editor framework with paid add-ons for AI, collaboration and document conversion.

Programming study alongside practice and contests

Coding practice grouped by technical skill

A coding problem bank with topic and difficulty choices

Data and AI courses organized around career paths

Free introductory open courses including software engineering

Coding programs centered on algorithms and web development

A commercial knowledge-base system for publishing and maintaining internal or customer-facing articles.

Client requests, practice workflows and QuickBooks transaction follow-up

Convert AsciiDoc source into HTML and other publishing formats with the Ruby-based reference implementation.

Write with a stylus in flexible notebooks that can also hold and annotate PDFs.

Write naturally by hand and add PDF pages to notes for markup.

A database engine with an AQL query workflow for collections and connected data.

Search financial documents and trace research back to its sources

Keep construction project plans, schedules, and progress information connected across the building lifecycle.

A multimodal note workspace for handwriting, audio, documents, PDFs, and study materials.

A zoomable handwriting and planning notebook with sub-pages and document annotation.

Share a collaborative whiteboard URL and work across unlimited pages with live audio, video, and document annotation.

Create a managed MongoDB deployment, connect with mongosh or a driver, and scale from a small shared tier.

Composes Python components into retrieval, search, and agent pipelines for AI applications.

A source editor for LilyPond scores with music view, MIDI playback and score-building tools.

AI localization hub with multi-agent translation and quality review.