Star Formation and Quenching in High-redshift Clusters: A view of gas, mass, and stars

The effect of the cluster environment on the star formation and quenching of high redshift galaxies has been elusive. However, technological capabilities and dedicated spectroscopic campaigns have opened a new window onto these processes within massive, virialized clusters at z~1 and all the way back to filamentary, extended protoclusters at z>2.  I will review progress we have made on these fronts through the lens of gas, mass, and stars within high-redshift (proto)cluster galaxies, focusing in particular on recent clues into environmental quenching from ALMA.