Lessons take place in the panel on chatgpt.com, not on this page.
Desktop: chrome://extensions → Developer mode → Load unpacked → select TUTOR/pc-extension. No Tampermonkey required.
Already installed? Reload ChatGPT. The existing Safari loader updates automatically; no new file or website permission is needed.
First installation only: save tutor.txt and rename it to the EXACT filename of your existing TUTOR script in the Userscripts folder, replacing that file (normally tutor.user.js). Do not keep two copies. Open the Userscripts extension popup, then reload ChatGPT. Future panel updates load on page reload, never during a lesson.
View standalone source (manual updates)
Open the panel on ChatGPT and select Sign in with Google.