An Apple job listing has mentioned “homeOS,” an otherwise never-before heard of Apple operating system, ahead of WWDC next week.

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Spotted by developer Javier Lacort, the Apple job listing for an Senior iOS Engineer in Apple Music explicitly mentions “homeOS” on two occasions, alongside Apple’s other operating systems including iOS, watchOS, and tvOS.

You’ll get to work with system engineers across Apple, learning the inner-workings of iOS, watchOS, tvOS and homeOS, and optimizing your code for performance in ways only Apple can. Come join our team and make a real difference for music lovers worldwide.

The ‌Apple Music‌ Frameworks team owns the technology stack that enables the system-integrated ‌Apple Music‌ experience on all of our mobile platforms: iOS, watchOS, and homeOS.

Interestingly, the job listing mentions homeOS as a “mobile platform,” seemingly highlighting it as more akin to iOS and watchOS than systems like macOS and tvOS.

The operating system could simply be a rebranding of its current smart home software, in much the same way iOS for iPad was rebranded iPadOS and OS X was changed to macOS, or potentially an entirely new OS.

Apple’s homeOS could feasibly debut as soon as next week at WWDC, where Apple is expected to unveil major updates to its various operating systems.