When running a frontend dev server and a backend API server on different ports, configuring the frontend's dev proxy to forward API requests eliminates CORS issues during development without touching production configuration.
When application code wraps stored values in a specific structure (like `{"v": value}` for JSONB), seed migrations must use the same structure. Format mismatches between seed data and application code are invisible until runtime and often survive testing because tests use the application layer, not...
A multi-repo content pipeline must handle mixed visibility gracefully — token scope, clone failure semantics, and local fallbacks all need explicit design.
Configuring a custom domain for GitHub Pages requires coordinating DNS, repo settings, build tool config, and deployment mode — each can silently break the others.
Three cloud stacks (AWS, Azure, GCP) built in separate phases with OIDC federation, avoiding cross-cloud coupling while sharing a common authentication pattern.
Designing a GitHub Actions workflow that harvests, validates, builds, indexes, and deploys a static site.
The twelve-factor methodology provides a concrete checklist for building deployable, scalable web applications — most violations surface as production incidents.