Low-Light Retinal Layer

A photosensitive retinal film that lifts detail from dim corridors without painting the world military green. For several days after install, every status lamp blooms like a small sun and sleep wants a proper mask. The layer needs no external camera and runs offline-only once calibrated — no deck, no mesh — but it cannot invent detail in absolute darkness. Bright flashes leave longer afterimages; bouncers and boarding crews both know that tell. Glassnerve schedules follow-up through the patient key and the clinic serial. A secondhand layer carries the prior owner's calibration ghosts; Glassnerve charges to erase them, while alley installers call the residual twitches a personality feature.