Draft: Resolve "Add option to fit an (at least constant) background while modelling the psf"
requested to merge 59-add-option-to-fit-an-at-least-constant-background-while-modelling-the-psf into main
Improper subtraction of the background of the stars used to model the PSF could lead to systematic photometric errors (question mark). As part of my little tests I'll just add an option to automatically fit a constant background on top of the PSF model.