ApuOS provides a browser desktop, file management, storage, applications and backup tools for your NAS. Connect a computer, tablet or phone to the same network and open the NAS in a browser. macOS, Windows and Linux desktop styles are interface styles; they do not mean the NAS can run software packages from those operating systems.

1. Make sure the NAS is powered on and connected. Find its LAN address in your router or with a device discovery tool.
2. Open http://NAS-IP:18080 in a browser, replacing the example address with your own NAS address.
3. Create an administrator on the first-run page. There is no shared default administrator password.
4. After signing in, check storage health and free capacity before creating folders. Creating a new pool may erase selected disks; verify every disk identity.

Set the time zone and display language in Control Panel, then check the current system version. Create a shared folder and separate SMB credentials before connecting a computer as a network drive. NAS desktop, SSH and SMB accounts are separate identities.

Import a small test file first, then download it and compare its contents. Existing RAID, volumes and external disks are not reformatted by opening the management page. Pause any disk operation you do not understand and read the storage guide.

Use File management to confirm where data lives, then protect important content with Backup and recovery. Install a matching version from the Package center. For outside access, read Remote access first; never expose the administrator entry point directly to the Internet for convenience.

ApuSync is the device synchronization service on the NAS. ApuClient is the client used on other devices. The current direct-transfer flow verifies both identities before sending a file directly to the NAS.

The NAS owner enables “Device sync → Direct sync”, chooses an existing writable destination and creates a short-lived pairing code. The client verifies the expected NAS identity. The owner must approve the client identifier and public key; possessing a code alone never grants file access.

The current client supports a single-file upload. It is not yet an automatic background photo backup or multi-directory sync tool. Read single-file upload and platforms and limits before starting.