massmappy recovers convergence mass maps on the celestial sphere from weak lensing cosmic shear observations. It relies on SSHT (ascl:2207.034) and HEALPix (ascl:1107.018) to handle sampled data on the sphere. The spherical Kaiser-Squires estimator is implemented.
https://ui.adsabs.harvard.edu/abs/2022MNRAS.509.4480W and a link to https://astro-informatics.github.io/massmappy/