https://blog.argakiig.xyz/ Notes on distributed systems, infrastructure, and production engineering. en-us Tue, 02 Jun 2026 00:00:00 GMT https://blog.argakiig.xyz/posts/the-most-dangerous-engineer/ https://blog.argakiig.xyz/posts/the-most-dangerous-engineer/ Tue, 02 Jun 2026 00:00:00 GMT The most dangerous engineer on a team isn't the junior. It's the one who stopped being curious, because everything underneath them keeps moving whether they keep learning or not. https://blog.argakiig.xyz/posts/distributed-systems-are-mostly-apologies/ https://blog.argakiig.xyz/posts/distributed-systems-are-mostly-apologies/ Mon, 01 Jun 2026 00:00:00 GMT A distributed system is a collection of carefully managed disappointments. The engineering isn't avoiding failure, it's choosing which failures you're willing to tolerate. https://blog.argakiig.xyz/posts/the-review-moved-up-the-stack/ https://blog.argakiig.xyz/posts/the-review-moved-up-the-stack/ Sun, 31 May 2026 00:00:00 GMT AI made the obvious mistakes rare and the expensive ones invisible. Code review didn't get easier. It moved up the stack, from implementation to judgment. https://blog.argakiig.xyz/posts/it-works-is-not-ready/ https://blog.argakiig.xyz/posts/it-works-is-not-ready/ Thu, 28 May 2026 00:00:00 GMT AI is great at getting an app running. It is not the same as getting it ready for real users, real payments, and real data. Here is where the gap hides. https://blog.argakiig.xyz/posts/ai-is-a-tool/ https://blog.argakiig.xyz/posts/ai-is-a-tool/ Tue, 26 May 2026 00:00:00 GMT AI is another abstraction in a long line of them. The real question was never whether engineers use it, but whether they understand what they ship. https://blog.argakiig.xyz/posts/the-operational-reality/ https://blog.argakiig.xyz/posts/the-operational-reality/ Fri, 22 May 2026 00:00:00 GMT Replay storms, cost amplification, cache pressure, and backpressure — what makes a recovery design survive contact with production. https://blog.argakiig.xyz/posts/replay-without-stopping-live-traffic/ https://blog.argakiig.xyz/posts/replay-without-stopping-live-traffic/ Thu, 21 May 2026 00:00:00 GMT Idempotent writes, versioned aggregates, and DO NOTHING vs DO UPDATE — merging historical replay into live state without a maintenance window. https://blog.argakiig.xyz/posts/watermarks-and-intentional-lag/ https://blog.argakiig.xyz/posts/watermarks-and-intentional-lag/ Wed, 20 May 2026 00:00:00 GMT Keep collecting in realtime, but finalize behind the present. A lagged watermark is what buys you deterministic replay. https://blog.argakiig.xyz/posts/postgres-advisory-locks/ https://blog.argakiig.xyz/posts/postgres-advisory-locks/ Wed, 20 May 2026 00:00:00 GMT Postgres advisory locks are useful coordination primitives, but they are not durable leadership or consensus. https://blog.argakiig.xyz/posts/observability-is-runtime-architecture/ https://blog.argakiig.xyz/posts/observability-is-runtime-architecture/ Wed, 20 May 2026 00:00:00 GMT Observability is part of runtime architecture, not just a read-only layer over production systems. https://blog.argakiig.xyz/posts/recovery-is-the-system/ https://blog.argakiig.xyz/posts/recovery-is-the-system/ Tue, 19 May 2026 00:00:00 GMT Live processing is the easy 20% of a streaming system. Deterministic replay is the requirement everything else hangs off of.