Node Caged halves Node.js memory use

This is a real infrastructure win, not a benchmark gimmick: same Node apps, materially lower RAM bills if your workload is object-heavy. The tradeoff is that teams need to treat it like a specialized runtime, not a drop-in default for every Node service.

• –Benchmarks in the repo show roughly 50-51% savings across arrays of objects, nested objects, linked lists, and arrays of arrays
• –Platformatic ships prebuilt multi-architecture Docker images, which lowers the adoption barrier compared with compiling a custom Node build yourself
• –The key constraint is V8 pointer compression’s 4GB heap ceiling per isolate, so very large single-process workloads still have to be designed carefully
• –N-API addons are reported to work, but older V8-native addons such as better-sqlite3 can crash, making addon compatibility the main operational risk