Desktop application↗
Use the managed app for installation, profile selection, updates, trust, and supported system setup. Start with the guided setup.
Overview
404 coordinates supported browser and network fingerprint signals around a profile you select. Its browsing components run locally, between a supported browser and the sites you visit.
Understand 404
Start with Architecture to follow a request through the system, see what STATIC and Rose each handle, and understand where 404’s control ends.
Choose your path
Self-hosted CLI↗
Install the open source stack yourself. Choose the Windows, macOS, or Linux guide and follow the steps for your platform.
Find a specific detail
Read STATIC for the proxy and its component pages, Rose for the Windows Linux runtime, and API for the local control endpoints.
For common setup questions, privacy boundaries, troubleshooting, and support, read the FAQ. Developers can start with the resource map.