Chapter title in header + a line separating the header from the body text

declaration-license.tex

+\thispagestyle{plain}
+
 \IfStrEq{de}{\localeinfo{language.tag.bcp47}}{
 \foreignlanguage{ngerman}{
 

scrskoma.cls

@@ -104,7 +104,15 @@
 \setcounter{secnumdepth}{\subsubsectionnumdepth}
 
 % Print chapter titles in the header
-\pagestyle{headings}
+\RequirePackage[
+    % automatic page titles from the chapter name
+    automark,
+    % print a line separating the header from the rest of the text
+    headsepline
+]{scrlayer-scrpage}
+
+% Not required, scrheadings replaces the default headings and plain page styles
+%\pagestyle{scrheadings}
 
 
 %-------------------------------------------------------------------------------