https://ertyurk.com Tech lover from Idea to Delivery en Tue, 14 Apr 2026 14:25:58 GMT https://ertyurk.com/posts/user-configurable-cache-ttl-for-multi-tenant-saas/ How I gave each workspace control over its own cache lifetime, with auto-flush on TTL decrease, cross-entity invalidation, and E2E tests that prove it works. Sun, 05 Apr 2026 00:00:00 GMT https://ertyurk.com/posts/user-configurable-cache-ttl-for-multi-tenant-saas/ https://ertyurk.com/posts/practical-allocation-hunting-in-rust/ Real before-and-after patterns for eliminating unnecessary heap allocations in production Rust, from ByteCounter to LazyLock. Fri, 03 Apr 2026 00:00:00 GMT https://ertyurk.com/posts/practical-allocation-hunting-in-rust/ https://ertyurk.com/posts/query-time-media-resolution-in-surrealdb/ Push media URL resolution into SurrealDB functions instead of post-processing API responses in your application layer. Wed, 01 Apr 2026 00:00:00 GMT https://ertyurk.com/posts/query-time-media-resolution-in-surrealdb/ https://ertyurk.com/posts/managing-concurrency-in-ai-workflows/ How we handle concurrent workflow execution in Rust using tokio::spawn and RwLock, the limitations we've hit, and where we're going next. Sun, 15 Mar 2026 00:00:00 GMT https://ertyurk.com/posts/managing-concurrency-in-ai-workflows/ https://ertyurk.com/posts/stop-writing-monolithic-system-prompts-the-skills-architecture/ System prompts don't scale. Here's how I structure agent instructions as modular, versioned graph nodes in a database. Tue, 10 Mar 2026 00:00:00 GMT https://ertyurk.com/posts/stop-writing-monolithic-system-prompts-the-skills-architecture/ https://ertyurk.com/posts/surrealdb-ids-why-we-use-table-id-everywhere/ Stripping table prefixes from IDs is a common mistake that breaks multi-model databases. Here is why we keep the full SurrealDB ID format across Rust, the API, and the Frontend. Sat, 07 Mar 2026 00:00:00 GMT https://ertyurk.com/posts/surrealdb-ids-why-we-use-table-id-everywhere/ https://ertyurk.com/posts/tdd-is-the-only-way-to-survive-ai-coding-agents/ AI agents write code faster than you can review it. If you don't write the tests first, you're just generating legacy code at scale. Thu, 05 Mar 2026 00:00:00 GMT https://ertyurk.com/posts/tdd-is-the-only-way-to-survive-ai-coding-agents/ https://ertyurk.com/posts/building-ai-interfaces-why-we-went-all-in-on-the-tanstack-ecosystem/ Rendering streaming LLM responses and complex agent workflows breaks standard React patterns. Here's why the entire TanStack ecosystem was the right choice. Mon, 02 Mar 2026 00:00:00 GMT https://ertyurk.com/posts/building-ai-interfaces-why-we-went-all-in-on-the-tanstack-ecosystem/ https://ertyurk.com/posts/permissioned-tools-for-ai-agents/ An agent with every tool is a liability. Here's how I design scopes, budgets, and audit trails so agents stay useful without being dangerous. Sat, 28 Feb 2026 00:00:00 GMT https://ertyurk.com/posts/permissioned-tools-for-ai-agents/ https://ertyurk.com/posts/eval-harnesses-for-ai-agents/ If you can't measure your agent, you can't trust it. This is the evaluation harness I use to keep agents honest in production. Tue, 24 Feb 2026 00:00:00 GMT https://ertyurk.com/posts/eval-harnesses-for-ai-agents/ https://ertyurk.com/posts/observability-for-ai-agent-systems-is-not-just-logging/ Logs tell you what happened. Traces tell you why. Here's how to build observability that actually works for multi-agent AI systems. Sun, 22 Feb 2026 00:00:00 GMT https://ertyurk.com/posts/observability-for-ai-agent-systems-is-not-just-logging/ https://ertyurk.com/posts/surrealdb-for-ai-agents/ I replaced three databases with one. Here's why SurrealDB works for AI agent systems and what I gave up. Fri, 20 Feb 2026 00:00:00 GMT https://ertyurk.com/posts/surrealdb-for-ai-agents/ https://ertyurk.com/posts/shipping-20000-lines-in-a-day/ It's not about typing speed. It's about the infrastructure, the structure, and the discipline that let you move fast without breaking things. Wed, 18 Feb 2026 00:00:00 GMT https://ertyurk.com/posts/shipping-20000-lines-in-a-day/ https://ertyurk.com/posts/polyglot-monorepos-when-your-backend-and-frontend-speak-different-languages/ Rust and TypeScript in one repo. Different languages, one source of truth. Here's how to make it work. Mon, 16 Feb 2026 00:00:00 GMT https://ertyurk.com/posts/polyglot-monorepos-when-your-backend-and-frontend-speak-different-languages/ https://ertyurk.com/posts/why-your-ai-agent-needs-an-immutable-audit-trail-for-memory/ If an agent learns something wrong, you need to know why. Here's how we built a versioned, immutable memory system with a human-in-the-loop audit trail. Mon, 16 Feb 2026 00:00:00 GMT https://ertyurk.com/posts/why-your-ai-agent-needs-an-immutable-audit-trail-for-memory/ https://ertyurk.com/posts/human-in-the-loop-done-right/ Most HITL implementations are an afterthought. Here's how to build human oversight that actually works in production AI systems. Sat, 14 Feb 2026 00:00:00 GMT https://ertyurk.com/posts/human-in-the-loop-done-right/ https://ertyurk.com/posts/agentic-payments-the-fraud-surface-nobody-is-talking-about/ When AI agents start making payments on behalf of humans, every traditional fraud signal breaks. Authorization, behavior, and identity all need rethinking. Fri, 13 Feb 2026 00:00:00 GMT https://ertyurk.com/posts/agentic-payments-the-fraud-surface-nobody-is-talking-about/ https://ertyurk.com/posts/full-stack-vertical-slices-the-only-way-to-ship-with-ai/ Stop building in horizontal layers. Vertical slices — from database to UI in one shot — are how you actually ship with AI agents. Thu, 12 Feb 2026 00:00:00 GMT https://ertyurk.com/posts/full-stack-vertical-slices-the-only-way-to-ship-with-ai/ https://ertyurk.com/posts/context-management-is-the-real-bottleneck/ Your AI coding agent is only as good as the context you give it. Here's how I structure information so agents actually ship useful code. Tue, 10 Feb 2026 00:00:00 GMT https://ertyurk.com/posts/context-management-is-the-real-bottleneck/ https://ertyurk.com/posts/what-gets-exploited-during-gateway-migrations/ Payment gateway migrations are the most dangerous period for fraud. Here's what attackers probe, what breaks, and how to survive the transition. Mon, 09 Feb 2026 00:00:00 GMT https://ertyurk.com/posts/what-gets-exploited-during-gateway-migrations/ https://ertyurk.com/posts/circuit-breakers-rate-limits-and-cost-ceilings/ AI in production needs more than retry logic. Here's the engineering behind keeping AI systems safe, predictable, and affordable. Sun, 08 Feb 2026 00:00:00 GMT https://ertyurk.com/posts/circuit-breakers-rate-limits-and-cost-ceilings/ https://ertyurk.com/posts/false-positives-are-a-revenue-leak-not-a-security-metric/ Every fraud rule you tighten kills real revenue. Here's how to think about false positives as a P&L problem, not a security dashboard number. Fri, 06 Feb 2026 00:00:00 GMT https://ertyurk.com/posts/false-positives-are-a-revenue-leak-not-a-security-metric/ https://ertyurk.com/posts/building-a-chat-system-thats-actually-a-workflow-engine/ Most AI chat UIs are just message lists. Mine is a thin layer over a deterministic workflow engine. The UX is better for it. Thu, 05 Feb 2026 00:00:00 GMT https://ertyurk.com/posts/building-a-chat-system-thats-actually-a-workflow-engine/ https://ertyurk.com/posts/the-15-second-window-behavioral-fraud-detection-without-friction/ 95% of legitimate users don't act within 15 seconds of a deposit. That single insight changed how I think about fraud detection forever. Tue, 03 Feb 2026 00:00:00 GMT https://ertyurk.com/posts/the-15-second-window-behavioral-fraud-detection-without-friction/ https://ertyurk.com/posts/why-a-monorepo-when-building-with-ai-agents/ AI agents work better when your codebase has clear boundaries. A monorepo gives them that. Here's how. Mon, 02 Feb 2026 00:00:00 GMT https://ertyurk.com/posts/why-a-monorepo-when-building-with-ai-agents/ https://ertyurk.com/posts/multi-agent-patterns-that-actually-work/ Not everything needs multiple agents. But when it does, here are the patterns I've found useful. Fri, 10 Jan 2025 00:00:00 GMT https://ertyurk.com/posts/multi-agent-patterns-that-actually-work/ https://ertyurk.com/posts/the-cost-problem-in-ai-nobody-talks-about/ AI demos are free. AI at scale is expensive. Here's how I think about building cost-predictable agent systems. Tue, 03 Dec 2024 00:00:00 GMT https://ertyurk.com/posts/the-cost-problem-in-ai-nobody-talks-about/ https://ertyurk.com/posts/why-i-chose-rust-for-ai-infrastructure/ TypeScript was easier. Python was expected. I went with Rust anyway. Here's why. Tue, 12 Nov 2024 00:00:00 GMT https://ertyurk.com/posts/why-i-chose-rust-for-ai-infrastructure/ https://ertyurk.com/posts/quantum-resistant-encryption-why-it-matters-and-how-to-be-prepared/ Your current encryption will be breakable. Here's what you need to know and do about it — from someone who's built payment systems handling real money. Tue, 15 Oct 2024 00:00:00 GMT https://ertyurk.com/posts/quantum-resistant-encryption-why-it-matters-and-how-to-be-prepared/ https://ertyurk.com/posts/agents-as-colleagues-not-features/ The mental model shift that changes how you build AI systems. Sat, 05 Oct 2024 00:00:00 GMT https://ertyurk.com/posts/agents-as-colleagues-not-features/ https://ertyurk.com/posts/building-ai-that-remembers/ Most AI systems are goldfish. Here's how I think about memory for agents that need to learn and persist knowledge. Sun, 22 Sep 2024 00:00:00 GMT https://ertyurk.com/posts/building-ai-that-remembers/ https://ertyurk.com/posts/why-most-ai-agents-fail-in-production/ Everyone's building AI agents. Almost none of them work reliably. Here's what I've learned building production agent systems. Thu, 15 Aug 2024 00:00:00 GMT https://ertyurk.com/posts/why-most-ai-agents-fail-in-production/ https://ertyurk.com/posts/deterministic-ai-workflows/ Let the AI figure it out is not a production strategy. Here's why separating control flow from reasoning matters. Sun, 28 Jul 2024 00:00:00 GMT https://ertyurk.com/posts/deterministic-ai-workflows/ https://ertyurk.com/posts/building-products-that-scale/ I've built systems that scaled to millions of users and systems that collapsed at thousands. The difference is boring. Sat, 08 Jun 2024 00:00:00 GMT https://ertyurk.com/posts/building-products-that-scale/ https://ertyurk.com/posts/technical-debt-is-not-the-enemy/ Every engineer complains about tech debt. Most of them are wrong about what to do about it. Tue, 14 May 2024 00:00:00 GMT https://ertyurk.com/posts/technical-debt-is-not-the-enemy/ https://ertyurk.com/posts/the-first-90-days-as-a-technical-leader/ What I actually do when taking over a new team or organization. Spoiler - it's mostly listening. Tue, 02 Apr 2024 00:00:00 GMT https://ertyurk.com/posts/the-first-90-days-as-a-technical-leader/ https://ertyurk.com/posts/saying-no-is-your-job/ The most important skill in product and engineering leadership is saying no. Here's how to do it without being an asshole. Mon, 18 Mar 2024 00:00:00 GMT https://ertyurk.com/posts/saying-no-is-your-job/ https://ertyurk.com/posts/hiring-engineers-what-actually-matters/ I've hired dozens of engineers. Here's what predicts success and what's just noise. Sun, 25 Feb 2024 00:00:00 GMT https://ertyurk.com/posts/hiring-engineers-what-actually-matters/ https://ertyurk.com/posts/managing-up-without-selling-out/ Your relationship with your boss determines more than your technical skills. Here's how to navigate it. Tue, 30 Jan 2024 00:00:00 GMT https://ertyurk.com/posts/managing-up-without-selling-out/ https://ertyurk.com/posts/when-to-build-vs-buy/ Every engineering leader faces this question constantly. Here's my framework for thinking about it. Wed, 15 Nov 2023 00:00:00 GMT https://ertyurk.com/posts/when-to-build-vs-buy/ https://ertyurk.com/posts/running-effective-one-on-ones/ Most 1:1s are status meetings. They should be so much more. Sun, 08 Oct 2023 00:00:00 GMT https://ertyurk.com/posts/running-effective-one-on-ones/ https://ertyurk.com/posts/strategy-is-what-you-say-no-to/ Most product strategies aren't strategies. They're wish lists. Here's the difference. Tue, 12 Sep 2023 00:00:00 GMT https://ertyurk.com/posts/strategy-is-what-you-say-no-to/ https://ertyurk.com/posts/stakeholder-management-for-technical-leaders/ The code is the easy part. Getting alignment with humans is where it gets hard. Sun, 20 Aug 2023 00:00:00 GMT https://ertyurk.com/posts/stakeholder-management-for-technical-leaders/ https://ertyurk.com/posts/developer-experience-is-product-work/ Your internal tools and processes are products. Treat them that way. Wed, 05 Jul 2023 00:00:00 GMT https://ertyurk.com/posts/developer-experience-is-product-work/ https://ertyurk.com/posts/building-engineering-culture/ Culture isn't the poster on the wall. It's what happens when leadership isn't watching. Sun, 18 Jun 2023 00:00:00 GMT https://ertyurk.com/posts/building-engineering-culture/ https://ertyurk.com/posts/a-manifest-for-better-logging/ Most logging is useless noise. Here's how I think about logs that actually help when things break at 3am. Sat, 17 Dec 2022 00:00:00 GMT https://ertyurk.com/posts/a-manifest-for-better-logging/ https://ertyurk.com/posts/leadership-for-building-a-successful-software-company/ What I've learned leading engineering teams across 3 time zones — the systems that work and the mistakes I made along the way. Thu, 14 Apr 2022 00:00:00 GMT https://ertyurk.com/posts/leadership-for-building-a-successful-software-company/ https://ertyurk.com/posts/the-evolution-and-applications-of-behavioral-fraud-detection/ I built fraud detection systems for iGaming and payments. Here's what actually works — and what's just vendor marketing. Mon, 14 Mar 2022 00:00:00 GMT https://ertyurk.com/posts/the-evolution-and-applications-of-behavioral-fraud-detection/ https://ertyurk.com/posts/the-pros-and-cons-of-making-your-product-dynamic-prioritizing-flexibility-budget-and-time/ When to build configurable systems vs. hardcode it. Real examples of when I got this right, and when I over-engineered. Mon, 14 Mar 2022 00:00:00 GMT https://ertyurk.com/posts/the-pros-and-cons-of-making-your-product-dynamic-prioritizing-flexibility-budget-and-time/ https://ertyurk.com/posts/how-to-select-the-best-software-tool-for-your-needs/ I've evaluated hundreds of tools for teams. Here's the framework I actually use — not the vendor's checklist. Tue, 08 Mar 2022 00:00:00 GMT https://ertyurk.com/posts/how-to-select-the-best-software-tool-for-your-needs/ https://ertyurk.com/posts/risk-management-on-product-management/ Every project has risks. Here's how I identify them early and keep them from killing the product. Mon, 07 Mar 2022 00:00:00 GMT https://ertyurk.com/posts/risk-management-on-product-management/ https://ertyurk.com/posts/balancing-speed-and-quality-in-technical-product-management-a-guide-to-success/ Ship fast or ship right? It's a false choice. Here's how I actually make the tradeoff. Sat, 05 Mar 2022 00:00:00 GMT https://ertyurk.com/posts/balancing-speed-and-quality-in-technical-product-management-a-guide-to-success/ https://ertyurk.com/posts/maximizing-value-and-minimizing-waste-applying-lean-principles-to-technical-product-management-in-software-development/ Lean isn't just for factories. Here's how I apply it to software — and where it breaks down. Tue, 01 Mar 2022 00:00:00 GMT https://ertyurk.com/posts/maximizing-value-and-minimizing-waste-applying-lean-principles-to-technical-product-management-in-software-development/ https://ertyurk.com/posts/why-measuring-and-analyzing-the-workload-and-efficiency-of-software-engineers-is-important/ Measuring engineering productivity is tricky. Here's what to track, what to avoid, and how not to destroy morale in the process. Sun, 27 Feb 2022 00:00:00 GMT https://ertyurk.com/posts/why-measuring-and-analyzing-the-workload-and-efficiency-of-software-engineers-is-important/ https://ertyurk.com/posts/effective-strategies-for-managing-a-full-remote-software-team/ I've managed teams across 3+ time zones for years. Here's what actually works — and the mistakes I made learning. Wed, 23 Feb 2022 00:00:00 GMT https://ertyurk.com/posts/effective-strategies-for-managing-a-full-remote-software-team/ https://ertyurk.com/posts/end-to-end-release-management/ How I manage releases from planning to post-deploy monitoring. No chaos, no 2am fires. Mon, 14 Feb 2022 00:00:00 GMT https://ertyurk.com/posts/end-to-end-release-management/ https://ertyurk.com/posts/post-mortem-analysis-investigating-a-website-outage/ Most post-mortems are theater. Here's how I run them so they actually prevent the next incident. Sun, 13 Feb 2022 00:00:00 GMT https://ertyurk.com/posts/post-mortem-analysis-investigating-a-website-outage/ https://ertyurk.com/posts/key-metrics-for-measuring-success-as-a-digital-product-manager/ Most product metrics are vanity. Here are the ones I actually track — and why. Fri, 11 Feb 2022 00:00:00 GMT https://ertyurk.com/posts/key-metrics-for-measuring-success-as-a-digital-product-manager/ https://ertyurk.com/posts/rescuing-a-digital-project-a-step-by-step-guide-to-turning-things-around/ I've walked into projects that were 6 months behind with no clear path forward. Here's how I turn them around. Thu, 03 Feb 2022 00:00:00 GMT https://ertyurk.com/posts/rescuing-a-digital-project-a-step-by-step-guide-to-turning-things-around/ https://ertyurk.com/posts/creating-clear-and-comprehensive-digital-product-documentation/ I've written docs that saved projects and docs that nobody ever opened. Here's the difference. Mon, 31 Jan 2022 00:00:00 GMT https://ertyurk.com/posts/creating-clear-and-comprehensive-digital-product-documentation/ https://ertyurk.com/posts/navigating-decision-making-in-project-management-managing-risk-budget-bottlenecks-and-problems/ Most project decisions are made with incomplete information. Here's how I think through risk, budget, and trade-offs. Sat, 29 Jan 2022 00:00:00 GMT https://ertyurk.com/posts/navigating-decision-making-in-project-management-managing-risk-budget-bottlenecks-and-problems/ https://ertyurk.com/posts/step-by-step-guide-to-product-development-from-idea-to-launch-and-beyond/ The textbook version of product development is neat and linear. Reality is messier. Here's what it actually looks like. Thu, 27 Jan 2022 00:00:00 GMT https://ertyurk.com/posts/step-by-step-guide-to-product-development-from-idea-to-launch-and-beyond/ https://ertyurk.com/posts/creating-targeted-user-personas-understanding-your-customers/ I've seen personas that transformed product thinking. I've also seen personas that were pure fiction. Here's the difference. Tue, 25 Jan 2022 00:00:00 GMT https://ertyurk.com/posts/creating-targeted-user-personas-understanding-your-customers/ https://ertyurk.com/posts/prioritizing-your-product-roadmap-with-the-ice-and-rice-frameworks-an-introduction/ Prioritization is hard. These frameworks help — if you don't overthink them. Wed, 05 Jan 2022 00:00:00 GMT https://ertyurk.com/posts/prioritizing-your-product-roadmap-with-the-ice-and-rice-frameworks-an-introduction/