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What I Learned About Monorepos the Hard Way
Naming things well saved us more time than any framework migration. Caches are easy to add and surprisingly hard to remove. Latency percentiles tell a story that averages politely hide. Going further Small pull requests get real reviews, large ones get approvals. Tests are documentation that fails loudly when it goes stale. If the error…
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Ten Notes on Dependency Updates
The fastest query is the one you never send, but the second fastest has a good index. The rollback plan should exist before the rollout plan is approved. Every retry needs a budget, otherwise it is just a slower outage. A small example Feature flags are debt with an expiration date you must actually enforce.…
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A Practical Guide to Dependency Updates
Tests are documentation that fails loudly when it goes stale. Logs answer questions you knew to ask; traces answer the ones you did not. Our on-call rotation improved the day we deleted half of the alerts. A small example If the error message does not say what to do next, it is half an error…
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What I Learned About Database Indexes the Hard Way
Every retry needs a budget, otherwise it is just a slower outage. Small pull requests get real reviews, large ones get approvals. Naming things well saved us more time than any framework migration. Context Feature flags are debt with an expiration date you must actually enforce. Caches are easy to add and surprisingly hard to…
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Why Refactoring Matter More Than You Think
Caches are easy to add and surprisingly hard to remove. The fastest query is the one you never send, but the second fastest has a good index. The best architecture diagram is the one the new hire can redraw from memory. What didn’t Small pull requests get real reviews, large ones get approvals. Our on-call…
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Debugging Refactoring at 3 a.m.
We wrote the migration twice: once to learn, once to ship. Caches are easy to add and surprisingly hard to remove. Logs answer questions you knew to ask; traces answer the ones you did not. The short version Our on-call rotation improved the day we deleted half of the alerts. Tests are documentation that fails…
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Debugging Observability at 3 a.m.
Security is mostly about saying no to defaults that were convenient in 2010. Most production incidents start as a small assumption nobody wrote down. Logs answer questions you knew to ask; traces answer the ones you did not. Lessons Caches are easy to add and surprisingly hard to remove. Security is mostly about saying no…
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What I Learned About Error Budgets the Hard Way
Latency percentiles tell a story that averages politely hide. Security is mostly about saying no to defaults that were convenient in 2010. Naming things well saved us more time than any framework migration. Details Caches are easy to add and surprisingly hard to remove. The fastest query is the one you never send, but the…
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A Practical Guide to API Versioning
Latency percentiles tell a story that averages politely hide. The fastest query is the one you never send, but the second fastest has a good index. The best architecture diagram is the one the new hire can redraw from memory. The short version Most production incidents start as a small assumption nobody wrote down. The…
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Debugging Load Testing at 3 a.m.
Naming things well saved us more time than any framework migration. We measured first, and the bottleneck was not where anyone expected. Tests are documentation that fails loudly when it goes stale. Lessons Tests are documentation that fails loudly when it goes stale. Small pull requests get real reviews, large ones get approvals. Logs answer…
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Why Code Review Matter More Than You Think
The fastest query is the one you never send, but the second fastest has a good index. Naming things well saved us more time than any framework migration. We measured first, and the bottleneck was not where anyone expected. A small example Feature flags are debt with an expiration date you must actually enforce. Most…
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Feature Flags: Mistakes I Keep Seeing
Logs answer questions you knew to ask; traces answer the ones you did not. The fastest query is the one you never send, but the second fastest has a good index. Every retry needs a budget, otherwise it is just a slower outage. Getting started Every retry needs a budget, otherwise it is just a…