openCode is Germany’s nationwide platform through which federal, state and local government authorities can search for and use open source software, provide their own code or contribute to existing projects. openCode aims to create an infrastructure that promotes the use of sustainable open source solutions for the public sector. A crucial aspect of achieving this goal is implementing a secure software development life cycle (SDLC). openCode offers an ideal environment for developing secure and reliable applications. One such application is openDesk, an all-in-one solution for collaborative office work in the public sector that integrates trusted open-source tools. openDesk’s source code is published on openCode and serves as an example to demonstrate how openCode supports its secure development.