The source code for SD is maintained on Github. When you download SD, you will get all the source code and an install script for Debian and Ubuntu based distros. The current version has been tested on Debian 12, Ubuntu 24.04 and Mint 22. You can also install it on Ubuntu runnning under the Windows Subsystem for Linux and on the Raspberry Pi 5.
To download the installation package as a zip file, just point your browser to:
https://github.com/stringdatabase/sdb64
Click on the green "<> Code" button and choose "Download Zip".
In a terminal or console session, Unzip the resulting zip file, sdb64-main.zip.
Change to the resulting sdb64 directory and run the "ubuntu-installsd.sh" script.
If you have git installed, you can just issue this command:
git clone -b main https://github.com/stringdatabase/sdb64.