William Saar
saarw.bsky.social
William Saar
@saarw.bsky.social
Freelancer | Backend and data engineering for Spotify and Candy Crush, helped build SF-based appsec startup, financial trading tech. Website: updab.com
Sovereign Al is a hot topic, so I built a RAG agent that lets you compare OpenAl's GPT-4o Mini with models you can host yourself in a simulated recruitment agency scenario.

Try the demo and reach out if you need to build Al or data engineering solutions!
testagent.updab.com
May 24, 2025 at 9:46 AM
Built a Model Context Protocol (MCP) server for Kafka management tool AKHQ to let AI assistants like Claude and Cursor work alongside human users in AKHQ

Screenshot is an example interaction in Cursor. Code and installation instructions at github.com/saarw/akhq-m...
April 18, 2025 at 6:42 PM
Last day of my enterprise contract today, so downloaded Cursor and vibe coded with Claude

Built a web app for inverted viewing of photo negatives. Also records videos like the one below

Posted app at negviewer.com
Runs entirely in the browser
March 1, 2025 at 12:03 AM