gallery popup from single text link

i’d like a photo gallery to pop up from just a single text link. ideally i’d need to have several separate galleries on the same page, each of them opening from only a text link.
i found a few solutions in forums, yet they all involve coding which is not a problem to set it up, but is there a solution that allows to change the galleries later without changing code manually so that a layman can adapt the sets of images without having to code the changes?

thank you all, esp the wordpress team for creating and sharing such an amazing design system…

greetings from guatemala.