Digital humanities research software and infrastructures are typically designed around highly specific scholarly requirements. While effective for particular research practices, they often lack transferability across domains. The Text+ Registry, developed within the Text+ consortium of the German National Research Data Infrastructure (NFDI), proposes an alternative approach. Rather than serving solely as a catalogue for editions, lexical resources, and collections, it is conceived as a reusable infrastructural component adaptable to diverse scholarly and institutional contexts.

This paper examines three architectural principles underlying the Registry: metamodelling, model-driven design, and information layering.

Furthermore, two application scenarios demonstrate broader reuse: a transnational meta-archive of German archival materials on modern India (MIDA) and a planned NFDI-wide helpdesk catalogue for research data management services.

Technically, the Registry harvests distributed data via standard protocols while aligning heterogeneous schemas through configurable mappings.

The Text+ Registry thus models an infrastructural philosophy that supports pluralism: different conceptual frameworks can coexist and interoperate without enforced standardization. This approach reconciles disciplinary specificity, interoperability, automation, and curation, offering a sustainable model for digital humanities infrastructures and potentially for research infrastructures beyond the humanities.