In recent years there has been a shift in how diversity and representation are discussed in the German cultural sector. The PostHeimat network, a three-year-long experiment in networked solidarity between major public German theatres and migrant actors and directors, discusses in this volume how to think about Heimat after migration. The contributions document the emergence, frictions, and difficulties in migrant theatre initiatives, being reflexive, research-based, and driven by cultural-policy-developing components. Emerging from encounters and plays, this study incorporates the critical perspectives of practitioners, scholars, activists, and artists from these initiatives and does not shy away from a frank reflection on failure and disappearance.