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Build JavaScript and TypeScript apps with Bun, an all-in-one toolchain that replaces Node.js, npm, a bundler, and a test runner with one fast binary that executes TypeScript directly.

Build full-stack web apps with Svelte and SvelteKit. Minimal runtime overhead, reactive components, and server-side rendering. The most admired frontend framework of 2025. Svelte compiles components to vanilla JavaScript at build time, resulting in zero runtime overhead and exceptional performance.

Build end-to-end type-safe APIs with tRPC and TypeScript, eliminating code generation and runtime bloat for full-stack applications. tRPC provides end-to-end type safety without code generation, schema stitching, or serialization layers - delivering a lighter, more intuitive developer experience than REST or GraphQL.

TypeScript-first validation skill using Zod — define schemas once, get runtime checks and inferred types for APIs, forms, and data pipelines.

Harden OpenClaw agent environments with secure defaults, policy boundaries, tool governance, and incident response playbooks.

Expert OpenNext + Cloudflare capability skill for Next.js on Workers, runtime constraints, cache strategy, and production-safe deploy architecture.

Secure MCP servers with strict tool boundaries, auth controls, dependency hygiene, and abuse-resistant runtime policies.

Compile Rust, C++, or Go to WebAssembly and run it in the browser, Node.js, and serverless runtimes: wasm-bindgen JS interop, WASI for system access, the Component Model, and SIMD.