Notes on engineering leadership, SaaS architecture, and fractional CTO work.https://jonathanmann.tech/https://jonathanmann.tech/blog/keep-your-own-data/https://jonathanmann.tech/blog/keep-your-own-data/The asymmetry no one's fixing: every AI company has your data and you don't. Here's the personal data sovereignty stack I'm building on an Intel Arc Pro B70 and Qwen3.6-35B-A3B.Sat, 23 May 2026 00:00:00 GMThttps://jonathanmann.tech/blog/hello-world/https://jonathanmann.tech/blog/hello-world/Kicking off a writing habit on engineering leadership, fractional CTO work, and the strange shape of small technical teams.Thu, 21 May 2026 00:00:00 GMThttps://jonathanmann.tech/blog/intel-arc-pro-b70-local-llm-llamacpp-qwen3/https://jonathanmann.tech/blog/intel-arc-pro-b70-local-llm-llamacpp-qwen3/Real benchmarks running Qwen3.6-35B-A3B on the Intel Arc Pro B70. Why llama.cpp beats vLLM for this model today, and what's coming next.Thu, 21 May 2026 00:00:00 GMT