Pygmtsar, Sbas, Insar, Linear Algebra, Sentinel 1.
or so. In the notebook on GitHub, I showed examples of calculating errors caused by atmospheric effects and how simple exclusion of the corresponding images can significantly improve results, see Live Example S1A_Stack_CPGF_T173 on Google Colab and Live Example S1A_Stack_CPGF_T173 Plus on Google