Didactic caseSlow Spring Boot API: separating symptoms from causes
A practical diagnostic route to investigate API latency through logs, database behavior, external calls, payloads and infrastructure.
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Technical case studies for comparing symptoms, evidence and decisions.
These scenarios are didactic and do not expose real clients. They help readers compare common technical problems before changing infrastructure, rewriting code or hiring support.
Didactic case
Didactic caseDocker deployment on a VPS with port and proxy conflicts
How to organize Docker, Nginx, DNS, SSL and containers when more than one system shares the same VPS.
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Didactic caseLegacy system without documentation: where to begin
A route to turn an old system into an initial technical map and reduce dependency on memory or a single person.
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Didactic caseKnowledge base for AI: organize documents before RAG
How to evaluate whether a small business is ready to connect AI to its own documents without increasing confusion and risk.
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