Joel Posti focused on improving documentation accuracy for the openid/OpenID4VP repository, addressing a key issue in the example client ID scheme. He identified and corrected a mismatch in the Documentation/Examples section, updating the client ID to use the x509_san_dns format in line with the project specification. Working primarily with text-based documentation, Joel ensured that the example now reflects real-world usage, which helps streamline developer onboarding and reduces potential support queries. His targeted, non-breaking update maintained repository stability while enhancing clarity for users. The work demonstrated attention to detail and a commitment to aligning documentation with technical standards.