https://lykonhold.com/ Writing by Markus Lykonhold on building Kaldryn, on-premises AI, data sovereignty, and software engineering. en https://lykonhold.com/blog/build-vs-buy-ai-math/ https://lykonhold.com/blog/build-vs-buy-ai-math/ Sun, 19 Jul 2026 08:00:00 GMT Break-even numbers for self-hosted AI vs API in 2026: token volumes, hardware and staff costs, and the risks that never make the spreadsheet. https://lykonhold.com/blog/running-llms-on-premises-2026/ https://lykonhold.com/blog/running-llms-on-premises-2026/ Sun, 19 Jul 2026 08:00:00 GMT A hands-on guide to on-premises LLM deployment in 2026: hardware, quantization, vLLM serving, and the failure modes I see building Kaldryn One. https://lykonhold.com/blog/why-i-founded-kaldryn/ https://lykonhold.com/blog/why-i-founded-kaldryn/ Sun, 19 Jul 2026 08:00:00 GMT The 2021 origin story of Kaldryn: why I left consulting to build an on-premises AI appliance for European companies that cannot send data to the cloud.