• September 7, 2026

  5 design patterns used in my new habit tracker app

  There are plenty of habit trackers, but I wanted to build mine with constraints, a calendar view and habit streaks. So I built commitgraph: a small Django + HTMX app. Here are five Python design and testing patterns from building it.

• August 22, 2026

  Unsubscribe links without a login: Django signing

  Django has a signing module that makes it easy to build an unsubscribe link that works with no login and no session: token = signing.dumps(recipient.pk, salt=UNSUBSCRIBE_SALT). The token itself is the credential, and it ships with Django out of the box.

• June 20, 2026

  Profile First: A 10x Faster Django Test Suite

  The Rust Platform Django test suite took 30 seconds to run. I had a hunch it was database-related. Of course I was wrong. I profiled it with cProfile and cut it from 30 to 3 seconds.

• June 5, 2026

  How to Update Multiple Page Elements from One htmx Request

  A button submits code, tests run, feedback appears. Standard htmx. But the submissions dropdown stays stale; the new submission is in the database, just not in the dropdown. One request, two elements to update.

• May 26, 2026

  From Python Script to Production: A Django Coaching Case Study

  Six weeks of 1:1 coaching. The output: a Django app in production on Fly.io, covering movies, anime, and manga, with user accounts, a save library, Docker, and CI/CD on every push. Daniele started with Python skills and a project idea. Here's what the work actually looked like.