René Welches

TECH NOTES TO MYSELF

Back to the Future: Bringing Ollama Date-Blind Models to the Present

My local Ollama model was stuck in 2024 and treated the real present as a fake future — here's the Open WebUI filter that gets it current

A local LLM stuck at its 2024 training cutoff accused me of faking the future when web search returned same-day results. Here is why it happens in Open WebUI and a small filter function that drives any model back to the present.

Posted by Rene Welches on Saturday, June 13, 2026
Last Modified on Monday, June 15, 2026

My Local AI Stack: Mac Mini + Proxmox LXCs

Ollama on the Mac mini, Open WebUI on Proxmox, and SearXNG keeping the web search private

How I run a fully self-hosted AI stack split across a Mac mini M4 Pro for inference and a Proxmox cluster for the frontend — Ollama, Docling, Caddy, Open WebUI and SearXNG, all behind TLS.

Posted by Rene Welches on Tuesday, May 26, 2026

Beyond API Standardization: MCP and Agent Auth

How a job interview reframed the question for me: from API consistency to MCP capability layers and agent authorization

A job interview for an API Technical Lead role reframed the question for me: not how to standardize APIs, but how to authenticate and authorize AI agents. Exploring MCP, OAuth 2.1, and the authorization architecture that enterprise AI integrations actually need.

Posted by Rene Welches on Friday, May 22, 2026

Building an LLM-Powered Job Search Workflow with Claude and Obsidian

From RAG-at-query-time to a compiled knowledge wiki that actually compounds

How I built an Application (Tracking) System backed by Obsidian vault and Claude Code skills.

Posted by Rene Welches on Thursday, April 9, 2026
Last Modified on Friday, April 10, 2026