During December 2025, Dabinaya Fathan enhanced the better-auth/better-auth repository by implementing encryption for OAuth tokens during account linking. Using TypeScript and backend development skills, Dabinaya applied setTokenUtil to encrypt both access and refresh tokens, ensuring sensitive token information remained protected throughout the authentication flow. The update required modifying the account linking process to respect the encryptOAuthTokens configuration, aligning the system with security best practices and OAuth standards. While the work focused on a single feature, it demonstrated a strong understanding of secure token handling and contributed to reducing token exposure risk in the authentication infrastructure. No bugs were reported.