Let’s Talk Software

Learning to explain software, one idea at a time.

I’m Justin. These are small experiments in making technical ideas clearer—with my voice, a diagram, and something we can actually run.

Work in progress

Why would your browser trust my root CA?

Anyone can create a root certificate authority. This short pilot explores why creating one and getting a client to trust it are different things.

First cut · about 90 seconds · My narration, diagrams, and a replay of real OpenSSL output. Captions and a checked transcript will accompany the finished episode.

A self-signature doesn’t establish trust. The client’s configured trust anchor does.