Stefan Oltmann

Building apps with Kotlin 🚀

#95098412 followers 3 following

✨ 3 day streak

#49,878All time

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About

Kotlin developer. Multiplatform enthusiast. Builder of practical software.

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Maker History

MapsNotIncluded - ONI Seed BrowserEasily find the best maps for Oxygen Not Included
Apr 2026

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Joined Product HuntMarch 3rd, 2026

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15h ago

MapsNotIncluded - ONI Seed Browser - Easily find the best maps for Oxygen Not Included

The tool allows a large database of maps to be quickly searched using complex criteria, making it easy to discover interesting maps. Each map’s properties are presented in a clear and visually appealing way, enabling quick overviews and easy comparisons. It's free for everyone.

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1d ago

Thumbnail Fixer Pro - Repair & enhance embedded thumbnails

Slow photo browsing is often caused by broken or low-quality thumbnails. Thumbnail Fixer rebuilds embedded thumbnails for instant, sharp previews across Windows Explorer, Apple Finder, Mylio, ACDSee, Ashampoo Photo Organizer, and more.