Replit Known Pitfalls Overview Real gotchas when building on Replit. Each pitfall includes what goes wrong, why, and the correct pattern. Based on common failures in Replit's ephemeral container model, Nix-based environment, and cloud hosting platform. Pitfall Reference 1. Writing to Local Filesystem for Persistence What happens: Data is lost when the container restarts, deploys, or sleeps. Rule: Anything written to the filesystem is ephemeral. Use PostgreSQL, KV Database, or Object Storage for data that must survive restarts. --- 2. Hardcoding Secrets in Source Code What happens: Secrets are…