Alexander4, LLC
Organisation
A local-first, free, open-source PDF toolkit — merge, split, sign, redact, and more. Runs entirely on the user's machine; nothing leaves the computer.
A local app for music, TV, movies, and photos with automatic metadata matching. A single Go binary with SQLite storage — no accounts, no external services required.
A smooth, configurable gaze target for eye-movement work — a desktop app that plays a playlist of movement patterns. Runs entirely on the user's machine.
A proof of concept for SSH-public-key web authentication: log in to a website by signing a server-issued challenge with the SSH key you already have — no password at all. Includes SDKs in Python,...
Organisation
Alexander4, LLC
