A browser-native interface that turns head movement and eye blinks into full computer control — for people living with MND/ALS, stroke, or acquired brain injury. No specialised hardware. Just a camera.
Every face and every camera is different, so the system builds a threshold around the individual before it does anything else. The whole sequence takes 12 seconds.
The person looks at the screen naturally while the system samples their relaxed eye-aspect-ratio, establishing μ_rest.
4 secondsThe person closes their eyes so the system can find the lower bound of the signal, establishing μ_closed.
3 secondsThe person moves their head through a comfortable range so cursor sensitivity can be scaled to what they can actually do.
5 secondsDeployment is a single bookmarklet. Calibration profiles persist locally on the person's own device, so nothing about their face or their settings ever needs to leave it.
MediaPipe FaceMesh reads head position in real time and maps it to cursor movement, scaled to each person's range from calibration.
A deliberate blink or wink triggers a click, judged against the person's own threshold rather than a fixed default.
No install, no app store, no IT approval chain. One bookmarklet turns any modern browser into an access point.
Calibration settings save to localStorage on the person's device, so return sessions start from where they left off.
If moving a mouse or tapping a screen isn't reliable anymore, this gives you a way back into email, messages, browsing and more — using movements you already make. Set up takes one 12‑second calibration, and the system remembers your settings next time.
MND / ALS, stroke, and acquired brain injury, where hand and voice control become unreliable but head movement and blink control often remain.
For clinicians and allied health teams assessing access technology for patients with severe motor impairment, the calibration procedure and threshold formula are explicit and reproducible, not a black box.
Clinical staff briefing and patient/family guide documents are already prepared for teams evaluating this as part of an access technology assessment.
A provisional patent application is filed with a specific, examined‑in‑mind claim: the proportional‑offset calibration formula and its three‑phase sampling procedure, distinguished from the closest prior art. The Independence Stack v1.0 is complete and browser‑deployable today.
Outreach is structured across five categories, each with a different value proposition.
Dr. Manas Swain, Founder & Director, Aussi‑Nexus Group. Based in Gold Coast, Queensland, Australia.