In low-resource settings, governments struggle to keep pace with the service digitalization trend. Emerging challenges include problems in coordination, securing funding, scaling solutions, and the creation of silos resulting in duplication of effort. The GovStack-Initiative addresses these challenges by promoting a building block approach to the digitization of government services. As part of a community-led effort, we develop specifications for foundational software building blocks, identify products and prototype first use cases. The GovStack initiative is a multi-stakeholder initiative led by the Federal Ministry for Economic Cooperation and Development, Gesellschaft für Internationale Zusammenarbeit (GIZ), the Government of Estonia, the International Telecommunication Union (ITU) and the Digital Impact Alliance (DIAL).