Data engineering · Automation
David Häggström Pérez-Flecha
Data analyst with a software development background. I build ETL pipelines in Python and SQL, automate processes that used to be done by hand, and write about what I learn along the way.
Featured projects
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crawlview ★
Paste a URL and watch a site draw its own shape while it gets crawled, with broken links marked as they are found.
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mcp-agent-mailbox ★
A mailbox for AI agents on different machines. Each agent connects over SSH with its own key and gets MCP tools to send messages, reply and read threads.
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tapesketch ★
Draw a room to exact measure and move the furniture around until it fits. One HTML file, no account, nothing leaves your browser.
Latest posts
- How I cleaned a 120-notebook mess
From 120+ Jupyter notebooks and `sys.path` hacks to an installable package with snapshot tests, and the unexpected payoff for AI coding.