Presets and entry points

import	contents
sigmx	createSigmx, createStore, reactivity primitives, compile, plugin helpers, utilities (camel, kebab, debounce, throttle, withTiming, …)
sigmx/plugins	every directive, function and handler as named exports, plus morph and morphInner
sigmx/plugins/directives/<file> etc.	individual modules
sigmx/presets/minimal	[signals, text, show, on]
sigmx/presets/essentials	state, rendering, forms, requests and the morph: signals, computed, text, show, className, attr, bind, on, init, indicator, the five request functions, applyElements, applyState
sigmx/presets/all	everything
sigmx/csp	cspCompiler(nonce)
sigmx/server	the Fetch-API server helpers: readSignals, sse, sseStream, html, json, the event builders
sigmx/precompile	the build-time expression compiler
sigmx/scan, sigmx/vite	auto mode: the source scanner and the Vite plugins
sigmx/standalone	creates an instance with every plugin and exposes it as window.sigmx
dist/sigmx.standalone.js	the same, minified, for a script tag

The package is ESM only, ships .d.ts files for every module, and declares sideEffects for the standalone and CLI entries only, so bundlers drop everything you do not import.