JM Net is a small desktop app for Linux, macOS and Windows that puts your own computers on one private network. Each machine you connect gets its own address on that network, and traffic between them goes through the JM Tech Power hub over WireGuard, so they can reach each other wherever they are. Only your own devices are on your network, and JM Net does not carry the rest of your internet traffic.

Before you start

JM Net uses WireGuard, which you install first — the JM Net installer checks for it and stops if it is missing:

• Linux: sudo apt install wireguard-tools (or sudo dnf install wireguard-tools)
• macOS: brew install wireguard-tools
• Windows: install WireGuard from wireguard.com/install

Then get the app from its project page and run ./install.sh (Linux, macOS) or install.ps1 (Windows). Start it with jmnet.

Connect a computer

1. Press Connect.
2. The first time, JM Net asks for an API token — make one under Workspace → API tokens — and a name for this computer.
3. Approve one permission prompt (sudo, the macOS administrator prompt, or UAC on Windows). JM Net sets up the tunnel and joins this computer to your network.

Connected appears only once the hub has actually heard from your computer. If it says the hub has never responded, the usual cause is that your network blocks UDP port 51821.

The JM Net page

Open the Workspace menu and choose JM Net. It shows:

• Your network and the Hub address.
• Relayed this month out of the monthly limit of 50 GB. If a network passes it, its devices are disconnected until the start of the next month — the page says so.
• Your devices: Device, Address, OS and Last seen.

Removing a computer

Press Remove next to it on the JM Net page and confirm. Its address goes back to your network, which has room for 254 devices.

Uninstalling JM Net on Linux or macOS also removes the computer from your network for you. On Windows the uninstaller does not do that yet, so remove it on the JM Net page.

More: API tokens and two-factor sign-in to keep your account safe. More guides at https://jmtechpower.com/articles.