Then

1. Unpack it and double-click milrad. A window shows its addresses and the overview opens in the browser. Keep the folder anywhere; your lanes stay in it.
2. Add the lane. Click +, then Find cameras, pick the picture that shows the lane's target and type the distance. No camera at hand? Type sim for a simulated one.
3. Scan its QR code. Phones, tablets and laptops on the range's network open the lane with it.

macOS, the first start

milrad is not signed by Apple, so macOS holds back each of its parts once. Before the first start, clear that for the whole folder: open Terminal, type xattr -dr com.apple.quarantine (with the space), drag the unpacked folder into the window and press Return. The first start then takes up to half a minute.

Windows

If SmartScreen warns: More info › Run anyway. Allow the firewall question, so phones reach it.