Using Pydantic for ETL - Clean, Validate, and Transform Data with Confidence
Build cleaner, more reliable ETL pipelines with Pydantic. Learn how to validate, transform, and load data with confidence using Python....
Python Logging vs Print - Why Logging Is Better for Debugging
print() works for quick debugging, but it quickly falls apart in real projects. Python’s logging gives you structure, context, and professionalism....
How I Log ESPHome Device Data to CSV with Python (and Why You Should Too)
I built a Python logger for my ESPHome devices to capture raw updates into daily CSV files, perfect for deep-sleeping ESP32s and reliable long-term logs....
How QR Codes Work (and How to Make Your Own in Python)
We scan them daily, at cafés, events, and even on Wi-Fi routers, but how do QR codes work?...
Build Your Own Low-Cost Cloud Backup with Hetzner Storage Boxes
In this article, I’ll show you how I set up my own “personal backup drive” using Hetzner Storage Boxes, with a focus on one-way backups (local → remote only)....
Turn Your Photo Library Into a Location-Based Search Engine Using EXIF Metadata
In this article, we’ll explore how to extract EXIF metadata, build an index of your photos, including those on NAS drives, and run location-based searches to find exactly what you’re looking for....