It is quite helpful to list the packages I installed manually on my machine, especially before perfomring a fresh install, so that I know what to install when the fresh system is up and running. A simple way to do so is to run:
$ dnf history userinstalled > packages.txtA more interesting approach is found
here,
in which a combination of the leaves dnf plugin (which lists packages not
required by other installed packages), and the comm (compare command) is used
in the following manner:
$ # -12: Suppress the lines uniq to the first and second "files"
$ # (only leaves 3, which are the lines found in both)
$
$ comm -12 <(dnf leaves | sort) <(sudo dnf history userinstalled | sort)