Worked on stabilizing the HybridSample authentication flow within the AzureAD/microsoft-authentication-library-for-js repository, focusing on resolving critical runtime blockers that impacted developer onboarding and reliability. Addressed a missing yargs dependency, corrected localhost URIs to use http for local testing, and removed unnecessary authentication parameters to resolve AADSTS errors. These targeted bug fixes enabled seamless cloning, installation, and startup of the HybridSample path, ensuring the authentication process functioned as intended. The work leveraged JavaScript and Node.js, with a strong emphasis on authentication flows, resulting in a more robust and accessible development experience for contributors working with the library.