Signal(X) — SignalX, a fine-grained reactive TypeScript framework

Fine-grained reactivity with signals and effects, plus a tiny TSX component runtime.

Nested routes, navigation guards and reactive params — isomorphic by default.

Predictable, derived state for larger apps — built on the same reactive core.

Tree-shakable composables built on signals — sensors, storage, timing and more, SSR-safe across every target.

Namespaces, a master locale with automatic fallback, locale detection and SSR-safe state transfer — renderer-neutral, so it runs on web, lynx and terminal alike.

npm create @sigx@latest — project scaffolding, plugin discovery and platform commands.

A browser panel to trace the reactive graph, time-travel effects and inspect components.

File-based routing, MDX content collections and island hydration for content sites.

Type-safe RPC you call like a function, resumable SSR that ships almost no JS, streaming render with islands, and a codec that carries your own types across the wire. Reach for Actors when a call needs identity and memory as well.

Virtual actors for SignalX — addressable, persistent server objects that ride the serverFn wire. Lazy activation, turn-based concurrency so a method body never races itself, pluggable storage with optimistic concurrency, durable reminders, and clustering across hosts when one machine stops being enough.

Accessible buttons, forms, modals and more with full DaisyUI theme support.

A pluggable Monaco wrapper powering the live, runnable code samples in these docs.

A <Mermaid> component for any sigx app, plus drop-in ```mermaid fence support for @sigx/ssg — loaded lazily, only on pages that have a diagram.

First-class Vite integration — HMR for components, optimized production builds.

Ship your SSR app anywhere — one WinterCG fetch handler plus build adapters for Cloudflare Workers, Vercel and Netlify, and documented Node, Deno and Bun entries.

Write one SignalX component tree, render it to real native views on iOS and Android.

The reactive model, rendered to the terminal — flexbox layout, input and a cell renderer.