#Introduction

Backu puts selected folders from your machines within reach without turning them into a public file share. A small daemon connects to the Backu gateway over encrypted Iroh/QUIC transport, and the web app requests files only when you browse or preview them.

#What makes it different

• Passkey accounts. Your device handles sign-in; there is no account password to remember or leak.
• Email recovery. A short-lived, single-use link lets you enroll a replacement passkey.
• Explicit roots. The daemon exposes only the folders you name.
• Revocable clients. Browser and CLI access appear in one session list.
• Direct transport. Iroh attempts a peer-to-peer path first and falls back to relays when needed.

Continue to Getting started to run Backu locally.