docs: link to invisible_playwright, the project this became

Author: feder-cr

README.md

@@ -25,3 +25,21 @@ AIHawk has been featured by major media outlets for revolutionizing how job seek
 [**Vanity Fair**](https://www.vanityfair.it/article/intelligenza-artificiale-candidature-di-lavoro)
 [**404 Media**](https://www.404media.co/i-applied-to-2-843-roles-the-rise-of-ai-powered-job-application-bots/)
 
+---
+
+</div>
+
+## Other projects
+
+Most of my work now goes into [invisible_playwright](https://github.com/feder-cr/invisible_playwright),
+a Playwright replacement built on a Firefox patched at the source level, so the browser
+fingerprint is set inside the engine rather than injected from the page - the same
+automation-detection problem AIHawk ran into at scale, solved one layer lower.
+
+A few pages from its docs, if you're curious how any of it actually works:
+
+- [The checklist for being detected on one site](https://github.com/feder-cr/invisible_playwright/blob/main/docs/playwright-detected-as-bot.md)
+- [Why an attached debugger makes automation detectable](https://github.com/feder-cr/invisible_playwright/blob/main/docs/debugger-timing-detection.md)
+- [Three ways to make Playwright undetected](https://github.com/feder-cr/invisible_playwright/blob/main/docs/playwright-stealth-levels.md)
+- [Why automating the login form is riskier than reusing a session](https://github.com/feder-cr/invisible_playwright/blob/main/docs/automating-login-vs-session-reuse.md)
+