Worked on the luisfelipesena/sistema-de-monitoria-ic repository, focusing on improving system reliability by addressing a critical database connectivity issue. Applied DevOps and scripting skills to update the db:check script, correcting the database port from 5439 to 5432 using Shell scripting. This change resolved persistent connectivity failures, ensuring stable end-to-end communication between the monitoring system and its database. The fix reduced downtime risk and minimized support requests related to database access. All changes were documented and tracked within the repository, supporting future audits and onboarding. No new features were added during this period, with efforts concentrated on robust bug resolution.