xmlcopyeditor 1.3.0.0-1.1build1 (ppc64el binary) in ubuntu noble

 XML Copy Editor is an XML editor focusing on editing document markup
 languages like DITA, DocBook, WordprocessingML. It features DTD/XML
 Schema/RELAX NG validation, XSLT, XPath, pretty-printing, syntax
 highlighting, folding, tag completion/locking, and a spelling/style check.