Lessons appear in the game the moment they're saved here — no redeploy. Each lesson is a stack of blocks (text, heading, image, video, code, callout, hands-on steps). Text and callouts support **bold**, *italic*, `code`, "- " bullet lines, and blank-line paragraphs. Videos accept a YouTube/Vimeo link, or a direct https link to an .mp4/.webm/.ogg file. Lesson numbers order the lessons inside a topic; the capstone hosts the level exam and takes no lessons.

Site settings

Switches take effect immediately - both in the UI (buttons and flows hide themselves) and at the API (disabled providers and flows refuse server-side). Turning phone verification off lets finished learners claim their certificate directly, with the same earned-it checks (all capstones + all six exams passed).

Certificate designer

These fields shape both the public certificate page and the PNG learners download. The preview below is drawn by the exact same routine as the download. Changes are live the moment you save.