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An open-source collaborative Markdown editor for notes, diagrams, and presentations.

An SSH-administered virtual server for a custom Linux web stack.

Online school-entry practice built around a test, teaching and retest sequence.

Practice resources for a broad catalogue of professional and certification exams.

Turn Markdown source files into a Vue-powered documentation site.

Adaptive online preparation for SAT, ACT, AP and selected graduate and English-language tests.

Preparation programmes for management, undergraduate, engineering and international admissions exams.

Civil-service courses with live online teaching, app resources, MCQ tests and Mains answer practice.

Build component-based web interfaces with a compact library that shares a React-compatible API.

AAMC's official MCAT preparation hub, content outline and study-planning resources.

Australian school-study resources and a community with HSC, VCE, QCE and WACE routes.

Free ACCA and CIMA notes and lectures with forums and tutor-question routes.

Camera-guided tracing onto physical paper

CAT preparation through live online, self-paced and classroom courses.

Healthcare question banks with answer explanations and study-performance analytics.

Turn any process into a step-by-step guide

AI study platform for homework help, notes, flashcards, quizzes and exam prep.

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

Self-marking maths papers, topic drills and courses for secondary-school study.

Turn product usage into invoices with hosted or self-managed billing

Self-host an appointment booking page and team calendar, or use the project’s managed hosting.

Bitcoin payments with distinct Classic and self-custody wallet modes

A dedicated internal messenger offered as air-gapped, self-hosted, on-premises, or cloud-hosted.

A self-hostable team messenger with channels, threads, direct messages, search, and file sharing.