With .tar.gz software usually the steps are:

1. Extract the archive
2. Find a file with the .sh extention - that’s the shell script. It will most likely be named something like install.sh
3. Make it executable - by right clicking and enabling it in the properties or by opening a terminal in this folder and using a command:

chmod +x install.sh

4. Run the installer in the terminal:

./install.sh

It might ask you to run it as root and quit. In that case put a sudo before the command above and it will ask you for your password

sudo ./install.sh

And tbat’s it, installation should begin. Follow the instructions in your terminal.

Is that an issue when using Borg for backups? Doesn’t it checksum everything at each operation?

Backup server