https://programmerraja.is-a.dev Last 10 notes on K. Boopathi Quartz -- quartz.jzhao.xyz https://programmerraja.is-a.dev/field-guide https://programmerraja.is-a.dev/field-guide Your live reading ledger — points, ranks, series stamps, badges and hidden gems, all kept in your own browser and never sent anywhere. Sat, 05 Sep 2026 04:24:53 GMT https://programmerraja.is-a.dev/ https://programmerraja.is-a.dev/ K. Boopathi Full Stack Developer writing production postmortems as detective stories. Real-time voice agents, Kubernetes, and the outages that taught me everything. Sat, 05 Sep 2026 02:56:45 GMT https://programmerraja.is-a.dev/post/2026/How-We-Doubled-Our-Cache-Hit-Rate-When-Pre-Warming-Wasnt-Enough https://programmerraja.is-a.dev/post/2026/How-We-Doubled-Our-Cache-Hit-Rate-When-Pre-Warming-Wasnt-Enough Quick question. If you run a voice agent, do you know your prompt cache hit rate on turn 1? Not the average across the call. Just turn 1, when the caller has said hello and is sitting in silence waiting for your agent to speak. Fri, 04 Sep 2026 23:58:22 GMT https://programmerraja.is-a.dev/second-brain/ai-engineering/argilla-io https://programmerraja.is-a.dev/second-brain/ai-engineering/argilla-io Domain experts focus on key data for language model fine-tuning, RLHF, and evaluation. AI automates the rest, quickly moving from prototype to ongoing production maintenance where we can store and review data and Annotate dataset Connections No outgoing connections. Tue, 01 Sep 2026 00:00:00 GMT https://programmerraja.is-a.dev/second-brain/ai-engineering/evals-skills https://programmerraja.is-a.dev/second-brain/ai-engineering/evals-skills Skills that guide AI coding agents to help you build product-specific AI evals (not foundation model benchmarks). These skills guard against common mistakes we’ve seen helping 50+ companies and teaching thousands of students in our AI Evals course. Tue, 01 Sep 2026 00:00:00 GMT https://programmerraja.is-a.dev/second-brain/voice-agent/breezeblue https://programmerraja.is-a.dev/second-brain/voice-agent/breezeblue breezeblue Connections No outgoing connections. Tue, 01 Sep 2026 00:00:00 GMT https://programmerraja.is-a.dev/second-brain/voice-agent/audio8-tts https://programmerraja.is-a.dev/second-brain/voice-agent/audio8-tts ... Mon, 31 Aug 2026 00:00:00 GMT https://programmerraja.is-a.dev/second-brain/voice-agent/quipus-0-6-speech https://programmerraja.is-a.dev/second-brain/voice-agent/quipus-0-6-speech ... Mon, 31 Aug 2026 00:00:00 GMT https://programmerraja.is-a.dev/second-brain/ai-engineering/atomic-chat https://programmerraja.is-a.dev/second-brain/ai-engineering/atomic-chat Google TurboQuant built-in Connections No outgoing connections. Fri, 28 Aug 2026 00:00:00 GMT https://programmerraja.is-a.dev/second-brain/ai-engineering/colibri https://programmerraja.is-a.dev/second-brain/ai-engineering/colibri Run frontier MoE models on hardware you already own — pure C, zero deps, experts streamed from disk. Tiny engine, immense model. github.com/JustVugg/colibri Connections alternative_to Atomic chat . Fri, 28 Aug 2026 00:00:00 GMT