A new job posting published by Apple mentions the word “homeOS,” which is the first time we’ve heard of it as an Apple operating system.

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Spotted by developer Javier Lacort, Apple's job posting for a Senior iOS Engineer at Apple Music explicitly mentions "homeOS" on two occasions, along with Apple's other operating systems (iOS, watchOS, and tvOS).
You'll work with systems 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 built-in "Apple Music" experience across all mobile platforms: iOS, watchOS, and homeOS.
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Interestingly, the job posting refers to homeOS as a “mobile platform,” which emphasizes that it is ostensibly similar to iOS and watchOS instead of macOS and tvOS, but it’s unclear why that is.
The operating system could be a new brand of Apple's current smart home software – in the same way that iOS for iPad was renamed to iPadOS and OS X changed to macOS – or possibly an entirely new operating system.
Earlier this year, Bloomberg’s Mark Gurman commented that Apple still lacks a “unified strategy” for the smart home market. It’s possible that homeOS is software designed to lead a more centralized smart home strategy, perhaps unifying the HomePod’s audioOS and the tvOS . Apple is also rumored to be developing a combined Apple TV and HomePod device and a HomePod with a display.
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Apple's homeOS could debut as soon as next week at WWDC, where the company is expected to unveil major updates to its various operating systems.
Source of information: macrumors.com
