4 open-source apps I install on every Windows PC

If you’re not familiar with the concept, “open-source” refers to app code that the public is free not just to look at, but to modify and republish as something else. You’re obligated to return the favor, even if you’re just incorporating material into a commercial product with your own proprietary code. There’s a surprising amount of open-source components in Windows 11 and macOS Tahoe, although some of the best features are, naturally, under lock and key.