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API Versioning in Small Teams
Most production incidents start as a small assumption nobody wrote down. Small pull requests get real reviews, large ones get approvals. The fastest query is the one you never send, but the second fastest has a good index. The short version We measured first, and the bottleneck was not where anyone expected. Latency percentiles tell…
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Refactoring Without the Hype
Feature flags are debt with an expiration date you must actually enforce. Tests are documentation that fails loudly when it goes stale. The rollback plan should exist before the rollout plan is approved. Details Naming things well saved us more time than any framework migration. Small pull requests get real reviews, large ones get approvals.…
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Debugging Database Indexes at 3 a.m.
Logs answer questions you knew to ask; traces answer the ones you did not. We wrote the migration twice: once to learn, once to ship. The rollback plan should exist before the rollout plan is approved. The short version Our on-call rotation improved the day we deleted half of the alerts. If the error message…
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API Versioning Without the Hype
Feature flags are debt with an expiration date you must actually enforce. Most production incidents start as a small assumption nobody wrote down. Small pull requests get real reviews, large ones get approvals. Details If the error message does not say what to do next, it is half an error message. The best architecture diagram…
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A Practical Guide to Observability
Naming things well saved us more time than any framework migration. Security is mostly about saying no to defaults that were convenient in 2010. Our on-call rotation improved the day we deleted half of the alerts. Going further Caches are easy to add and surprisingly hard to remove. A boring deploy pipeline is a feature,…
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Feature Flags Without the Hype
Logs answer questions you knew to ask; traces answer the ones you did not. Security is mostly about saying no to defaults that were convenient in 2010. The best architecture diagram is the one the new hire can redraw from memory. Lessons A boring deploy pipeline is a feature, not a lack of ambition. If…
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Ten Notes on Observability
Every retry needs a budget, otherwise it is just a slower outage. We wrote the migration twice: once to learn, once to ship. 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 message.…
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Debugging Caching at 3 a.m.
Logs answer questions you knew to ask; traces answer the ones you did not. The best architecture diagram is the one the new hire can redraw from memory. We measured first, and the bottleneck was not where anyone expected. Context Logs answer questions you knew to ask; traces answer the ones you did not. Tests…
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A Practical Guide to Load Testing
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. Security is mostly about saying no to defaults that were convenient in 2010. What worked Our on-call rotation improved the day we deleted half of the alerts.…
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Why Feature Flags Matter More Than You Think
Every retry needs a budget, otherwise it is just a slower outage. Our on-call rotation improved the day we deleted half of the alerts. Most production incidents start as a small assumption nobody wrote down. What didn’t The best architecture diagram is the one the new hire can redraw from memory. Small pull requests get…
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A Practical Guide to Type Systems
The fastest query is the one you never send, but the second fastest has a good index. Feature flags are debt with an expiration date you must actually enforce. Caches are easy to add and surprisingly hard to remove. What didn’t Every retry needs a budget, otherwise it is just a slower outage. Latency percentiles…
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What I Learned About Background Jobs the Hard Way
Feature flags are debt with an expiration date you must actually enforce. Latency percentiles tell a story that averages politely hide. A boring deploy pipeline is a feature, not a lack of ambition. Context Feature flags are debt with an expiration date you must actually enforce. A boring deploy pipeline is a feature, not a…