https://bugzilla.redhat.com/show_bug.cgi?id=2172068
--- Comment #5 from Ben Beasley code@musicinmybrain.net --- I have asked upstream[1] to clarify GPL-3.0-only vs. GPL-3.0-or-later and add license trove classifiers to the metadata.
[1] https://gitlab.com/nshephard/tcx2gpx/-/issues/8