During April 2025, this developer focused on backend stability for the Aceleradora25/e-acelera-back repository, addressing a critical configuration management issue. They resolved a cross-origin resource sharing (CORS) problem in the staging environment by reverting a previous ALLOWED_ORIGINS change and updating it to use the correct staging URL. This adjustment, implemented in TypeScript, improved environment parity and reduced deployment risks between staging and production. The work was carefully isolated in a single, well-documented commit, enhancing traceability for future audits. Although no new features were added, the targeted bug fix demonstrated a methodical approach to backend configuration and deployment reliability.