In 2025, configs belong in files — YAML, TOML, JSON — not buried in code.
✅ Clear separation of logic and behavior
✅ Easy environment switching without redeploys
✅ Human-readable, version-controlled, and CI-validated
Dive into layered configs, merging helpers, and modern schema validation. Your 3 a.m. self will thank you.
https://levelup.gitconnected.com/config-files-in-2025-a-complete-hands-on-guide-4497bee957b3
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