I write for developers who know one thing well and are learning the next one. SQL to Python. Python to AI. Local tools to production systems.
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Learning Paths
SQL for Python Developers
Learn SQL fundamentals using DuckDB and Python. A practical series for Python developers who want to level up their data skills.
I Vibe Coded and Lived to Tell
What happens when you build real AI tools with AI writing the code? Chaos mostly, but also hard-won lessons about what small models can and can't do.
Forging the Truth
Command line for the AI era. The terminal window is a powerful tool that lets you quickly verify what LLMs tell you that they have done
AWS Data Engineer Associate Certification
My honest, unfiltered experience studying for and taking the AWS Certified Data Engineer – Associate exam. The wins, the setbacks, and everything I learned along the way.
Latest Articles
ORM vs Raw SQL: Decision Framework
It's not either/or. Use ORMs for CRUD and migrations; use raw SQL for analytics and complex queries. A practical decision guide.
The Queue Is Full: What I'm Building Next with Local-First AI
After extracting a shared library, starting a new tool went from a day of boilerplate to two imports. The queue got longer, not shorter. Here's what's next.
Parameterized Queries & Security
String formatting in SQL is dangerous. Learn parameterized queries to keep user input safe and prevent SQL injection attacks.
Gemini Forgot Its Plan. I Kept the Makefile.
I ran out of Claude tokens and handed my six-repo codebase to Gemini CLI. It made some mistakes and had one genuinely good idea.
Python + DuckDB: Real ETL Patterns
Build a complete pipeline - fetch from an API, load into DuckDB, transform with SQL, export results. A capstone putting it all together.
Optimizing Queries: EXPLAIN for Python Developers
Read EXPLAIN output to understand why queries are slow. Learn when to add indexes and when to stop worrying about performance.