> ## Documentation Index
> Fetch the complete documentation index at: https://dicksontsai.com/llms.txt
> Use this file to discover all available pages before exploring further.

# Software Development Posts

> Posts about software development

<Update label="December 1, 2025">
  **[Why 'Just Start Building' Ships Late](/blog/software-development/just-start-building-ships-late)**

  The psychology behind why engineers skip the obvious first step of kicking off
  cross-functional dependencies early.
</Update>

<Update label="May 18, 2025">
  **[Pop Quiz: Software Testing](/blog/software-development/pop-quiz-software-testing)**

  A pop quiz exploring software testing concepts including global state issues,
  flaky tests, production bugs despite passing tests, the 100% code coverage
  paradox, and when mocks become problematic.
</Update>

<Update label="December 7, 2020">
  **[Tutorial: DIY Website-Blocking Focus Timer on MacOS](/blog/software-development/tutorial-diy-focus-timer)**

  Tutorial about using `/etc/hosts` to set up a website-blocking focus timer on
  Mac OS.
</Update>

<Update label="November 25, 2020">
  **[Tutorial: SQL Window Functions](/blog/software-development/tutorial-sql-window-functions)**

  Tutorial about SQL window functios (`PARTITION BY`, `OVER`, `ROW_NUMBER`, etc).
</Update>