1. Download the file.
2. Right-click the file, open Properties, and allow it to run as a program.
3. Double-click the file. HandWallet sets itself up on the first run.

Or, in a terminal:
chmod +x HandWallet-PC-Linux-x86_64.AppImage && ./HandWallet-PC-Linux-x86_64.AppImage

Requirements: a 64-bit computer with virtualization (VT-x / AMD-V) enabled in the BIOS, and 3 GB of free disk space.

Press here for the user manual.