After 25 years at Apple, John Geleynse has announced his retirement. During his time at the tech company, Geleynse worked to release platforms and tools, inspire developers, and rewrite the original Apple Human Interface Guidelines for Mac OS X Aqua.
Third-party developers credit Geleynse with shaping, guiding, and defining what it means to be an Apple developer on several platforms. He played a prominent role in co-hosting and co-chiefing the annual Apple Design Awards.
Despite his contributions, not everyone agreed with Geleynse's decisions and strategies. In the early years of Mac OS X, developers openly criticized Apple and Geleynse for their lack of clear decision-making processes and unconsidered design decisions.
Geleynse listened to developer complaints and provided detailed feedback, even meeting with developers to assist with design issues. He is well-regarded in the developer community for his insightful feedback, support, and inspiration.
Sebastiaan de With tweeted that John Geleynse has been an immense support and inspiration throughout his career. Dustin Mierau also tweeted that Geleynse got him excited about various projects and is an Apple legend. Simon Pride recalled when he met Geleynse at an event and found him to be charming and helpful.