Kora Unveils Linux-Based OS to Challenge Windows in the AI Era

Targeting heavy AI users, not all of Windows

Windows held about 77% of the worldwide desktop OS market in October, according to StatCounter, against nearly 10% for Apple's OS X. McMaster is not trying to win over that whole base. "Microsoft can keep its billion users," he said, pointing to an estimated 45 million to 50 million people who account for much of AI usage and revenue, a group he expects to pass 200 million by 2033.

His time at Cyanogen, which stayed dependent on Google Mobile Services, shaped the approach. "If you are trying to compete with an incumbent but are still reliant on them, you have no chance," he said. Kora plans to support models and services from several providers. Linux and Nix underpin the system, but Cortex and the desktop interface remain proprietary.

Team, partners and funding

The Palo Alto company, formerly the gaming OS maker Playtron, rebranded in July 2025 and builds on its earlier GameOS work. About 50 engineers, many recruited from the Linux gaming community, are developing it with tools such as OpenAI's Codex and Anthropic's Claude, which McMaster says have sped development at least fivefold.

Kora has worked with Qualcomm for nearly a year, including on Snapdragon X2 Elite support, and is building an enterprise edition, Humain OS, with Saudi Arabia's Humain for Snapdragon laptops in 2027. PC maker partnerships are planned but not yet named. Revenue is to come from subscriptions bundling AI models and agentic services. Investors include Samsung Next, Square Enix, Alumni Ventures, Polychain, VanEck and Circle; the company did not disclose its total funding or valuation. Gaming tools and Android app support are on the roadmap.