- Download and run the installer.
- On the blue “Windows protected your PC” screen: More info, then Run anyway.
- Answer Yes to the unknown-publisher prompt, then Next, Next, Finish.
The test build is not signed with a publisher certificate, so Windows warns about it. Windows 10 or 11, 64-bit.
Already installed an earlier test build? Save your shows, remove the old LIGHTBOOKSHOW first (Settings → Apps), then install 0.13.0 — otherwise Windows keeps both copies side by side.
0.13.0 adds drawings and groups. A show saved here opens in older versions without them — update every device you share shows with.
SHA-256 checksum
b02d3054cf78227bcd114aee029fa98eef22c727823d1c83706937c12d6923fe