This week we’re talking to Andreas Kling about SerenityOS and Ladybird. Andreas started SerenityOS as a means of therapy. It’s self-described as a love letter to “‘90s user interfaces with a custom Unix-like core.” Andreas previously worked at Nokia and later at Apple on the WebKit team, so he had an itch to do something along the lines of a browser, and that’s where Ladybird came from. We get into the details of compilers, OSs, browsers, web specifications, and the love of making software.