https://omeryanbas.com/blog/ Field notes on enterprise systems, automation, performance, data and integrations: the problem, the diagnosis and the fix. en https://omeryanbas.com/blog/technical-debt-visible/ https://omeryanbas.com/blog/technical-debt-visible/ Mon, 14 Sep 2026 09:00:00 GMT Debt nobody can see never gets budget. Give each item a cost, an interest rate and a place on the same list as features, then pay it inside feature work. https://omeryanbas.com/blog/where-decisions-are-written/ https://omeryanbas.com/blog/where-decisions-are-written/ Fri, 28 Aug 2026 09:00:00 GMT Decisions live in chat threads and in people's heads until they vanish. A one paragraph record next to the code keeps the reasons where the work is. https://omeryanbas.com/blog/five-questions-first-meeting/ https://omeryanbas.com/blog/five-questions-first-meeting/ Tue, 11 Aug 2026 09:00:00 GMT Ask what success is in numbers, what must keep running, who owns the accounts, what was tried before, and who decides. Then write the answers down. https://omeryanbas.com/blog/debugging-measure-first/ https://omeryanbas.com/blog/debugging-measure-first/ Tue, 28 Jul 2026 09:00:00 GMT The order that finds bugs is reproduce, narrow, measure, then theorise. Here is how to bisect changes and inputs, and why the first theory costs the most. https://omeryanbas.com/blog/small-reversible-steps/ https://omeryanbas.com/blog/small-reversible-steps/ Sat, 11 Jul 2026 09:00:00 GMT How to cut a large piece of work into steps that can each ship and each be undone, with feature flags, expand and contract migrations and a real rollback. https://omeryanbas.com/blog/measure-before-optimising/ https://omeryanbas.com/blog/measure-before-optimising/ Wed, 24 Jun 2026 09:00:00 GMT A synthetic audit, real user data and a phone in your hand answer three different questions. Here is when each one lies and how to measure a change. https://omeryanbas.com/blog/static-site-still-good/ https://omeryanbas.com/blog/static-site-still-good/ Wed, 10 Jun 2026 09:00:00 GMT What pre rendering buys you, what it costs, and the build pipeline, page weight budget and caching rules that keep a static site small and boring. https://omeryanbas.com/blog/cron-timezone/ https://omeryanbas.com/blog/cron-timezone/ Sun, 24 May 2026 09:00:00 GMT A schedule written in one zone on a machine running another, plus daylight saving twice a year, makes a nightly job run late, twice or not at all. https://omeryanbas.com/blog/restore-drills-zero-byte-backup/ https://omeryanbas.com/blog/restore-drills-zero-byte-backup/ Thu, 07 May 2026 09:00:00 GMT Backups fail quietly: a missing tool in the container, a permission, a full disk. Check the size and the row counts, and restore on a schedule. https://omeryanbas.com/blog/logs-worth-reading/ https://omeryanbas.com/blog/logs-worth-reading/ Thu, 23 Apr 2026 09:00:00 GMT Most logs cannot answer the one question an incident asks. A correlation id, the subject being worked on and an outcome with a reason fix that. https://omeryanbas.com/blog/llm-fallback-when-credit-ends/ https://omeryanbas.com/blog/llm-fallback-when-credit-ends/ Mon, 06 Apr 2026 09:00:00 GMT A model provider can fail for billing, quota or an outage. Without a fallback ladder every user sees the same generic error. How to degrade on purpose. https://omeryanbas.com/blog/ai-cost-control/ https://omeryanbas.com/blog/ai-cost-control/ Fri, 20 Mar 2026 09:00:00 GMT An AI feature that works can still produce a bill nobody planned for. Where the tokens go, what to cache, what to trim and how to cap spend per user. https://omeryanbas.com/blog/payment-webhook-security/ https://omeryanbas.com/blog/payment-webhook-security/ Fri, 06 Mar 2026 09:00:00 GMT Verify the signature over the raw body, reject old timestamps, store the event id, never trust the amount. A compact handler and the checks around it. https://omeryanbas.com/blog/slow-query-to-right-index/ https://omeryanbas.com/blog/slow-query-to-right-index/ Tue, 17 Feb 2026 09:00:00 GMT Find the query, read the plan, then choose the column order. A practical route from a slow page to an index that actually gets used, and its cost. https://omeryanbas.com/blog/idempotent-jobs/ https://omeryanbas.com/blog/idempotent-jobs/ Sat, 31 Jan 2026 09:00:00 GMT Queues and webhooks deliver at least once, so every handler runs twice eventually. How to make the second run harmless with a key and a constraint. https://omeryanbas.com/blog/two-accessibility-classics/ https://omeryanbas.com/blog/two-accessibility-classics/ Sat, 17 Jan 2026 09:00:00 GMT Heading levels chosen to match the layout, and an aria-label that hides the visible text. Both break keyboard and voice users, and both are cheap to fix. https://omeryanbas.com/blog/self-hosted-fonts-privacy/ https://omeryanbas.com/blog/self-hosted-fonts-privacy/ Wed, 31 Dec 2025 09:00:00 GMT A hosted font stylesheet hands every visitor IP address to another company before your page renders. Self hosting removes the transfer and a round trip. https://omeryanbas.com/blog/responsive-images-audit/ https://omeryanbas.com/blog/responsive-images-audit/ Sun, 14 Dec 2025 09:00:00 GMT The audit compares the file you sent with the pixels the device needs, which is layout width times pixel ratio. Here is how to read it and what to change. https://omeryanbas.com/blog/macos-tar-appledouble/ https://omeryanbas.com/blog/macos-tar-appledouble/ Sun, 30 Nov 2025 09:00:00 GMT Extended attributes become AppleDouble files inside archives made on a Mac, land in your web root and get served. How to spot, stop and clean them up. https://omeryanbas.com/blog/rsync-delete-well-known/ https://omeryanbas.com/blog/rsync-delete-well-known/ Thu, 13 Nov 2025 09:00:00 GMT A mirroring deploy removes everything the build did not create, including the path a certificate authority reads. How to catch it weeks before the expiry.