See the canonical version of this blog post at the Microsoft Open Source Blog! Ten years ago, Microsoft released the source for MS-DOS 1.25 and 2.0 to the Computer History Museum, and then later republished them for reference purposes. This code holds an important place in history and is a fascinating read of an operating system that was written entirely...

I've been doing not just Unit Testing for my sites but full on Integration Testing and Browser Automation Testing as early as 2007 with Selenium. Lately, however, I've been using the faster and generally more compatible Playwright. It has one API and can test on Windows, Linux, Mac, locally, in a container (headless), in my CI/CD pipeline, on Azure...

There are many let's encrypt automatic tools for azure but I also wanted to see if I could use certbot in wsl to generate a wildcard certificate for the azure Friday website and then upload the resulting certificates to azure app service. Azure app service ultimately needs a specific format called dot PFX that includes the full certificate path and...

GitHub Next has this cool project that is basically Copilot for the CLI (command line interface). You can sign up for their waitlist at the Copilot for CLI site. Copilot for CLI provides three shell commands: ??, git? and gh? This is cool and all, but I use PowerShell. Turns out these ?? commands are just router commands to a larger EXE called github-copilot-cli....

Mastodon is a free, open-source social networking service that is decentralized and distributed. It was created in 2016 as an alternative to centralized social media platforms such as Twitter and Facebook. One of the key features of Mastodon is the use of the WebFinger protocol, which allows users to discover and access information about other users...

I have been blogging here for the last 20 years. Every Tuesday and Thursday, quite consistently, for two decades. But last year, without planning it, I got tired and stopped. Not sure why. It didn't correspond with any life events. Nothing interesting or notable happened. I just stopped. I did find joy on TikTok and amassed a small group of like-minded...