Worked on the goauthentik/authentik repository to enhance OAuth2 device code flow authentication by enabling client ID transmission through the HTTP Authorization header as well as the POST body. This update required modifying the authentication extraction logic to support both sources, consolidating the process to reduce edge-case failures and improve reliability. The work included comprehensive updates to tests, ensuring HTTP Basic Auth-based client_id passing was covered, and thorough documentation to guide users on the new authentication patterns. Leveraged Python, Django, and API development skills to deliver a focused, security-oriented feature that improves compatibility with diverse client implementations.