Complex sentence: Many academic users have migrated to using LaTeX as modern editors have made that system increasingly user-friendly, another alternative is Scribus, a desktop publishing (DTP) application; released under the GNU General Public License.
Split into simpler sentences: Many academic users now use LaTeX because modern editors have made that system increasingly user-friendly. Another alternative is Scribus, a desktop publishing (DTP) application that is released under the GNU General Public License.