libsopt-dev 3.0.1+dfsg-1build2 (amd64 binary) in ubuntu lunar

 SOPT is a C package to perform Sparse OPTimisation. It solves a
 variety of sparse regularisation problems, including the SARA
 algorithm.
 .
 SOPT is largely provided to support the PURIFY package, a companion
 open-source code to perform radio interferometric imaging, also
 written by the authors of SOPT.
 .
 This package contains the development files.