I built Felix myself. With a lot of help.

The vibe coding workflow goes like this: you have an itch, you describe it to Claude, you argue back and forth about implementation details you half-understand and Claude half-understands, and eventually something exists that didn’t before. Felix exists this way. A small personal app I’ve been nudging and extending for a few months, named for Felix the Catalog (a nod to the ancient Aussie penned cartoon series).

The original brief was modest. A way to manage all the bookmarks I was accumulating by starring items in RSS lists I read. The problem with list apps is they’re either too simple to be useful or too powerful to be fast. Felix landed exactly where I needed it.

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Geir Isene sat down at his computer last week and realised something unusual. Almost every program he touched - the window manager, the text editor, the file manager, the terminal, the email client, the calendar - was software he wrote himself. In a few weeks, with Claude Code as his engineering partner, he had replaced his entire desktop computing environment. All of it command line. All of it terminal-native. All of it his.

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