The OECD report defines digital public infrastructure as shared, secure and interoperable systems that enable broad access to public and private services. Digital identity, payments, data-sharing systems, registries, notifications and gateways are treated as reusable building blocks rather than isolated applications. The report’s theoretical importance lies in relocating digital government from service digitisation to infrastructural composition: administrative capacity depends upon common protocols that permit multiple institutions to coordinate at scale. Methodologically, comparative country cases are used to identify recurrent governance requirements around funding, public-private collaboration, interoperability, privacy, security, resilience and cross-border cooperation. Efficiency is therefore inseparable from safeguards. The report explicitly warns that common systems can produce exclusion or dependence if governance is weak. Its broader bridge is to platform studies and public administration: “government as a platform” becomes an institutional architecture in which technical components, legal authority and public values must remain aligned for digital systems to function as genuinely public infrastructure.