As a dramaturg, I collaborate with playwrights, directors, actors and designers to help a production to help artists and audiences "contextualize the world of a play" in myriad ways. Most of my dramaturgy work these days is to support Arcadia University Theater productions.
For more on the art of dramaturgy, start with this page from the Literary Managers and Dramaturgs of America (LMDA).
Here are the websites I built for some recent projects:
Arcadia Theater's production of Marisol by José Rivera (November 2021): https://sites.google.com/arcadia.edu/marisol/home
Arcadia Theater's production of The Resistible Rise of Arturo Ui by Bertold Brecht (March 2020): https://sites.google.com/arcadia.edu/arturo-ui/home
Arcadia Theater's production of Circle Mirror Transformation by Annie Baker (October 2019): https://sites.google.com/arcadia.edu/circle-mirror-transformation/home.