WASI

The WebAssembly System Interface is a standardized, capability-scoped set of host calls (files, clocks, sockets) that lets WASM modules access system resources portably and sandboxed, inside or outside the browser.

grounded in: HN 'WebAssembly in the browser' theme + notable 'Firefox in WebAssembly: a full web browser compiled to run inside WASM' — running heavyweight software client-side requires a standardized WASM system

Connected concepts

WebAssembly, Capability-Based Security, Portable single-file executable, Syscall filtering, Cosmopolitan Libc / APE