Add NVIDIA Sync remote management details from build.nvidia.com

Documented installation (macOS/Windows/Linux), SSH key automation,
app launchers (VS Code, Cursor, Dashboard, AI Workbench), custom
port forwarding, and mDNS discovery.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

context/dgx-os-software.md

@@ -40,7 +40,7 @@ The system ships ready to run AI workloads with:
 - **CUDA toolkit + cuDNN** — GPU compute API, compiler, and deep learning primitives
 - **NVIDIA drivers** — optimized for GB10 Blackwell GPU
 - **Docker + NVIDIA Container Runtime** — container support out of the box (T0 Spec)
-- **NVIDIA Sync** — application management and configuration tool
+- **NVIDIA Sync** — cross-platform desktop app for remote device management (see §8)
 - **DGX Dashboard** — system monitoring with integrated JupyterLab
 - **NGC** — access to NVIDIA GPU Cloud containerized applications and models
 - **AI Enterprise** — enterprise-grade AI software assets and services
@@ -101,6 +101,50 @@ Firmware updates take approximately 1-2 minutes plus a reboot.
 - **Package management:** Standard Ubuntu `apt` package manager, plus NVIDIA's own repositories.
 - **NVIDIA kernel:** The system requires NVIDIA's specific kernel for full hardware compatibility.
 
+## 8. NVIDIA Sync (Remote Management App)
+
+NVIDIA Sync is a **cross-platform desktop application** (macOS, Windows, Linux) that connects a laptop/workstation to the DGX Spark / Dell Pro Max GB10 over the local network. (T1 Documented, build.nvidia.com/spark)
+
+### Installation
+
+| Platform | Method |
+|----------|--------|
+| macOS | Download DMG, drag to Applications |
+| Windows | Run installer executable (auto-launches) |
+| Linux (Debian/Ubuntu) | Add NVIDIA repository, `apt install` |
+
+### Connection Setup
+
+1. Device and laptop must be on the **same LAN**
+2. Provide device hostname (mDNS format: `spark-abcd.local`) or IP address
+3. Enter username and password
+4. Sync **generates an SSH keypair**, installs the public key on the device, then **discards the stored password**
+5. Creates an SSH alias for future connections (password-free after setup)
+
+### Features
+
+- **SSH connection control** — toggle device connectivity on/off
+- **Working directory configuration** — set default launch location
+- **Application launchers** — one-click launch for:
+  - Terminal (SSH session)
+  - DGX Dashboard (web UI)
+  - VS Code (remote SSH)
+  - Cursor (remote SSH)
+  - NVIDIA AI Workbench
+- **Custom port forwarding** — map localhost ports to remote services (e.g., JupyterLab on port 8888, API servers, etc.)
+
+### Network Discovery
+
+- Uses **mDNS** (`.local` suffix) for automatic hostname resolution on the LAN
+- Falls back to direct IP address if mDNS fails
+- Requires same network — no WAN/internet remote access built in
+
+### Troubleshooting
+
+- **mDNS resolution failure:** Use IP address instead of hostname
+- **Connection timeout during boot:** Wait for device to fully boot
+- **Authentication failure:** Reconfigure connection in Sync app
+
 ## Key Relationships
 
 - Runs on: [[gb10-superchip]]

context/setup-and-config.md

@@ -87,7 +87,7 @@ Source: [Dell Support — How to Reinstall DGX OS](https://www.dell.com/support/
 ### Access Methods (Post-Setup)
 - **Local:** Keyboard, mouse, monitor directly connected
 - **SSH:** Standard SSH remote access
-- **NVIDIA Sync:** Remote management application
+- **NVIDIA Sync:** Cross-platform desktop app (macOS/Windows/Linux) that automates SSH key setup, launches VS Code/Cursor/Terminal/Dashboard remotely, and supports custom port forwarding. Discovers device via mDNS (`spark-abcd.local`) or IP. See [[dgx-os-software]] §8 for full details.
 - **Remote desktop:** Supported
 - **Hybrid:** Local + network access simultaneously