linux

Open source software underpins the global internet, powering 96% of Fortune 500 companies' web servers, the entire Linux ecosystem, and billions of devices from Android phones to cloud infrastructure. Yet 'open source' means something precise: source code publicly available under a legal license that permits modification, redistribution, and private use, with no single vendor lock-in. This article examines the three dominant license models (GPL, MIT, Apache), how projects sustain themselves through sponsorship and foundations, the economics that make open source viable, and why enterprises depend on it despite the paradox of free software powering trillion-dollar industries.

Linux holds roughly 3% of the global desktop market in 2026 — a number that sounds unimpressive until you realize it represents more active machines than all versions of macOS combined in some monthly surveys, and that the Steam gaming survey now records Linux at 5.33% of its user base. The shift isn't happening in corporate IT departments or on the evening news. It's happening one Steam Deck purchase, one developer workstation, and one Windows 10 end-of-life migration at a time.