The development tree is available through a Git repository hosted at GitHub.

To retrieve the current development tree, use the following command:

$ git clone git://github.com/networkupstools/nut.git

The configure script and its dependencies are not stored in Git. To generate them, ensure that autoconf, automake and libtool are installed, then run the following script in the directory you just checked out:

$ ./autogen.sh

Then refer to the NUT user manual for more information.

You can browse the "vanilla NUT" code at the Main GitHub repository for NUT sources, and some possibly modified copies as part of packaging recipe sources of operating system distributions, as listed below.

GitHub has several download links for repository snapshots (for particular tags or branches), but you will need a number of tools such as autoconf, automake and libtool to use these snapshots to generate the configure script and some other files.

After you configure the source workspace, a make dist-hash recipe would create the snapshot tarballs which do not require the auto* tools, and their checksum files, such as those available on the NUT website and attached to GitHub Releases page.