How to put a series of terminal commands in a shortcut icon on the taskbar in kde?

Is there a way to make a icon shortcut on the taskbar to open emacs by running SNAP=1 SNAP_NAME=1 SNAP_REVISION=1 /home/felipe/emacs/src/emacs in the terminal when I click on it? I asked this on the emas stack exchange wrongly, and was redirected to specifications.freedesktop.org/desktop-entry-spec/latest and to use a .desktop file to do this, but this doesn't really answer my question, how do I do this? And is there a way to make it so that when I run emacs by this method the terminal doesn't keep open as a window on the background?