gltfpack 0.19+dfsg-1 (s390x binary) in ubuntu mantic

 gltfpack is a tool that can automatically optimize glTF files to reduce the
 download size and improve loading and rendering speed.
 .
 It substantially changes the glTF data by optimizing the meshes for
 vertex fetch and transform cache, quantizing the geometry to reduce the
 memory consumption and size, merging meshes to reduce the draw call count,
 quantizing and resampling animations to reduce animation size and simplify
 playback, and pruning the node tree by removing or collapsing redundant
 nodes. It will also simplify the meshes when requested to do so.