What this page is. Riserbo runs on your own machine: the Apertus model never leaves it, so it cannot run on a public website. This page replays the real output of Apertus 1.5 8B (computed on –) on the three sample letters, with the same rules and the same merge as the app. Restoring placeholders runs for real in your browser. To redact your own text, run Riserbo locally: quick start (make run, one command, offline after the first model download).