libsynthesis-dev 3.4.0.47.5+syncevolution-1.5.3-1build1 (s390x binary) in ubuntu jammy

 The Synthesis SyncML engine supports SyncML versions 1.0, 1.1 and 1.2
 including complex features like data filtering, suspend & resume,
 vCard/vCalendar format conversion in a way completely transparent to
 the user of the library.
 .
 These are the development files, only needed if you are compiling applications.