I love building apps and reusable frameworks. In my spare time I like to collect and restore old beautiful products.

Apps and code

All my freelance work and indie apps and open source frameworks are done under CoolYellowOwl.

To see some of the apps and frameworks I've done, check out

Cool Yellow Owl logo


I love old Apple products and over the past few years I have collected quite a few old devices, computers and accessories.

Some of them are on display in my home office. To take a virtual tour on

You can follow @macseumdk on Twitter to get updates when I find "new" products or try to restore them to their former glory.