Blog Posts

Thoughts, tutorials, and insights

Software Testing: A Practitioner's Walkthrough

6/26/2026Kevin Sullivan

A teaching walkthrough of software testing fundamentals: V&V principles, the unit-to-acceptance testing levels, black-box and white-box techniques, regression and performance testing, the automation workbench, and estimating effort with Test Point Analysis (TPA).

software-testingqatest-automationregression-testingfundamentals

Pop!_OS Update is Great but Cannot Resume from Suspend

12/24/2025Kevin Sullivan

Debugging a black screen on resume from suspend in Pop!_OS after a kernel update. A quick guide to identifying NVIDIA driver compatibility issues and booting into an older kernel as a workaround.

popospop!_oslinuxnvidiadriver

My First Blog Post...

5/25/2023Kevin Sullivan

This is the first post of my new Astro blog.

astroblogginglearning in public