Systems programming software: (is mostly written in well-specified, simple languages for which multiple implementations exist, allowing you to pivot from one vendor to another if needed)
Software industry: (is pivoting hard to the destruction of the commons through matrix multiplication)
Certain people who end up in my mentions: "HURRY, GUYS! We need to rewrite everything in a complex incompletely-specified language with one viable implementation/package ecosystem, controlled by a single team that includes AI boosters, and is currently in the news for DHH vibing in it. No time to lose, it's for the secure future of computing."