Connect to a sing-box server straight from Quick Settings: import connections from a share link, a subscription URL, or a QR code image, then pick a server from the menu. Subscriptions are cached, so connecting never waits on the network. The extension runs no background processes; the sing-box backend runs as a systemd user service set up by the project's install script. The optional QR-image import runs the zbarimg tool once, when you pick an image.

Extension Homepage

https://github.com/vipinus/ext-singbox