Max Seelemann

Co-founder and executive lead at Ulysses. Occasional speaker, full-time nerd.

coding

Fast Thumbnails with CGImageSource

When working with images, we rarely need to show them at full size — most often ist’s rather as a thumbnail or preview. Using fully loaded images for this is quite slow, so we implemented a thumbnail cache. While modernizing this component, I remembered user reports about slow image loading.

And now I blog

I’ve been running a software company for over 22 years now, and always managed to go without a personal blog. We’ve had company blogs on and off over the years, where I wrote a thing or two, but they all faced challenges. Too little time, too many distractions,