Henry RauschBlog posts by Henry Rausch — technical explainers and project writeups.https://hra42.com/The Model Is Not the Product: Integrating AI Without the Magichttps://hra42.com/blog/integrating-ai-into-applications/https://hra42.com/blog/integrating-ai-into-applications/A practical guide to integrating AI with controlled data, permissions, verification, and the EU rules that shape the application around it.Wed, 15 Jul 2026 00:00:00 GMTThe Private Generator: Why Local LLMs Aren't for Everyonehttps://hra42.com/blog/local-models-private-generator/https://hra42.com/blog/local-models-private-generator/An honest, hands-on look at the hardware bottlenecks, maintenance costs, and practical realities of running large language models on your own metal.Sat, 11 Jul 2026 00:00:00 GMTFrom Plausible to Proven: Working With LLMs Without the Magichttps://hra42.com/blog/working-with-llms/https://hra42.com/blog/working-with-llms/A practical workflow for giving LLMs the right evidence, bounding what they can do, and checking their work against reality.Thu, 09 Jul 2026 00:00:00 GMTHow LLMs Remember Things: Context, Tools, and RAG Without the Magichttps://hra42.com/blog/llm-memory-tools-rag/https://hra42.com/blog/llm-memory-tools-rag/A plain look at where an LLM answer gets its facts: weights, context, retrieval, tool calls, and app memory.Sun, 05 Jul 2026 00:00:00 GMTWhat Claude Is Actually Doing: LLMs Without the Magichttps://hra42.com/blog/how-llms-work/https://hra42.com/blog/how-llms-work/A high-level, honest look at how large language models like Claude really work: tokens, next-word prediction, and what those probabilities actually mean. With three interactive demos you can play with in your browser.Wed, 01 Jul 2026 00:00:00 GMTBuild, Break, Document: Introducing HR Docshttps://hra42.com/blog/docs-launch/https://hra42.com/blog/docs-launch/A new home at docs.hra42.lol for the how-to side of my projects — install steps, references, and notes I'd otherwise forget.Mon, 11 May 2026 00:00:00 GMTKeeping an Eye on the Master Key: Building or-observerhttps://hra42.com/blog/or-observer/https://hra42.com/blog/or-observer/Why I built a self-hosted LLM observability platform for OpenRouter using Go, DuckDB, and Svelte 5.Sat, 09 May 2026 00:00:00 GMTThe Master Key for LLMs: My Own OpenRouter Go SDKhttps://hra42.com/blog/openrouter-go-sdk/https://hra42.com/blog/openrouter-go-sdk/Why I, as an IT Operator, built a completely custom, dependency-free Go SDK for OpenRouter – and why you're going to love it.Fri, 08 May 2026 00:00:00 GMTThe Minimalist's AI: Shell Commands at the Speed of Thoughthttps://hra42.com/blog/ai-shell-assistant/https://hra42.com/blog/ai-shell-assistant/How 'ai'—a Go-based CLI—bridges the gap between natural language and the terminal without sacrificing security or user agency.Thu, 07 May 2026 00:00:00 GMTAI & Imposter Syndrome: When Your Real Work Doesn't Feel Realhttps://hra42.com/blog/imposter/https://hra42.com/blog/imposter/Exploring how AI and LLMs are amplifying imposter syndrome in developers, and why the problem isn't you—it's the broken yardstick we've been using to measure ourselves.Mon, 27 Oct 2025 00:00:00 GMTHuman-Centric Search Engine Revolutionhttps://hra42.com/blog/kagi-search-engine-review/https://hra42.com/blog/kagi-search-engine-review/Kagi is a privacy-focused, personalized, ad-free search engine, offering an alternative to traditional data-driven search engines Thu, 27 Feb 2025 00:00:00 GMTAbout Me: My Journey in Technology and Beyondhttps://hra42.com/blog/hello-world/https://hra42.com/blog/hello-world/Learn about my professional journey, passions for cinema and gaming, and what drives my creativity in technology.Sun, 26 Jan 2025 00:00:00 GMT