Manifesto

Principles

• Free

  Every book, every chapter, every learner — no paywalls, no premium unlocks, no subscription that gates the syllabus. Free is not a trial; it is the product, forever.

• Open

  Source on GitHub, improvements via pull requests, forks for classrooms and regions. Open means you can see how the book was made, fix a typo today, and ship a better edition tomorrow — not a PDF locked behind a login.

• Curriculum

  Not a wiki. Wikis excel at scattered facts; they do not carry a learner from prerequisite to mastery. We publish opinionated paths: ordered chapters, assessed skills, and a point of view about what to teach next — structure on purpose, not everything about X.

• Independent

  Built for learners and teachers, not for ad networks or investor growth charts. Sustainability comes from community contribution and shared infrastructure, not from turning students into the product.

• Durable

  Static HTML in an open repository — readable in a browser today, archivable tomorrow, forkable for decades. Your syllabus should not vanish when a vendor sunsets digital textbooks or changes the terms.

• Crafted

  Books are authored HTML with care: figures, interactives, and Mermaid maps where they help understanding — not generated slop or print PDFs pasted on the web. Quality is a deliberate choice on every page.

• Inspectable

  Every change has a commit. Teachers can adapt a fork for their syllabus with diffs and review, not opaque exports from a CMS. If something is wrong, you can find who wrote it and fix it.

• Web-native

  The medium is the open web: links, search, accessibility, and embeddable demos — not a file you download once and never update. Textbooks should behave like the rest of the internet learners already use.