Dylibso

Dylibso is a young infrastructure company that turns WebAssembly into a practical tool for everyday developers. Its open-source Extism CLI wraps the lower-level libextism runtime in a convenient command-line interface, letting teams generate, test and distribute portable plugins from any language that compiles to Wasm. Typical use cases include adding safe user-defined functions to databases, shipping scriptable business logic inside SaaS platforms, or letting enterprise customers upload custom extensions without restarting the host service. Because Extism plugins run inside a sandbox, operators can offer third-party extensibility while keeping the core process secure and crash-proof; memory limits, CPU quotas and deterministic execution are enforced automatically. The CLI itself is cross-platform and embeds the latest stable libextism binary, so CI pipelines can fetch, validate and bundle plugins without manual configuration. Developers write their extension once—whether in Rust, Go, C, Zig or AssemblyScript—and deploy it unchanged to Windows servers, Linux containers or edge functions. Dylibso also maintains language bindings, GitHub Actions and a forthcoming hosted registry, but the Extism CLI remains the entry point for bootstrapping projects, scaffolding manifests and running local integration tests. All Dylibso software, including the Extism CLI, is available for free on get.nero.com; downloads are sourced from trusted Windows package managers such as winget, always deliver the newest upstream release and can be installed individually or in unattended batch jobs.