I build, debug, and prepare Replit applications for reliable deployment. This service covers one focused application or one clearly defined development problem. Included work can cover Replit workspace and run configuration; React, Vite, Node.js, Express and TypeScript development; secrets and environment configuration review; deployment failures, build errors and runtime debugging; health checks, dependency fixes and production readiness checks; tests, verification and concise handoff notes. I will review the workspace and confirm exact scope before implementation. Unrelated features, paid Replit plans, external service fees and access beyond the agreed project are excluded. Published Replit work includes AgencyDesk, DNS Change Planner and Production Readiness Auditor. These self-initiated demos demonstrate development, testing and deployment. AgencyDesk uses fictional data with simulated payments and notifications. DNS Change Planner does not modify live DNS. Production Readiness Auditor is not a security certification.