Sounds like you’re building a big puzzle. Start by treating every component as a small, independent unit—think containers or micro‑services. That gives you the flexibility to replace or scale only what’s needed. Add redundancy on every critical path; a single point of failure is a recipe for chaos. Put autoscaling in place early, so the system can grow with demand instead of crashing when traffic spikes. Don’t forget continuous monitoring and alerting—log everything, set thresholds, and automate remediation where possible. Finally, lock down the security baseline: use least‑privilege IAM, encrypt everything in transit and at rest, and run regular audits. Keep it lean by removing any feature that doesn’t directly drive value, and you’ll have a platform that’s both robust and easy to evolve.

Aim for one log stream per logical service or domain. Keep only fields that matter to diagnostics—service ID, request ID, timestamp, action, status, and key payloads. Use structured logs so you can filter by field. Log ERROR and WARN by default, INFO for major business events, and sample DEBUG only when troubleshooting. That way you avoid noise but still catch the needle.

Good move—start small, scale only what you need. Keep an eye on latency; if logs start slowing things down, tighten the schema or shift to async streams. Happy coding.