diff --git a/.editorconfig b/.editorconfig
index ff9b6fc..03c17bf 100644
--- a/.editorconfig
+++ b/.editorconfig
@@ -8,5 +8,4 @@ insert_final_newline = true
 trim_trailing_whitespace = true
 
 [*.md]
-max_line_length = off
 trim_trailing_whitespace = false
diff --git a/package.json b/package.json
index 020da30..307b300 100644
--- a/package.json
+++ b/package.json
@@ -20,8 +20,8 @@
     "test:all": "pnpm test:vitest:jsdom && pnpm test:vitest:happy-dom && pnpm test:jest && pnpm test:examples",
     "test:all:legacy": "pnpm test:vitest:jsdom && pnpm test:vitest:happy-dom && pnpm test:jest",
     "build": "pnpm build:types && pnpm build:docs",
-    "build:types": "tsc --build && cp packages/svelte/src/core/types.d.ts packages/svelte/dist/core",
-    "build:docs": "remark --output --use remark-toc --use remark-code-import --use unified-prettier README.md examples && cp -f README.md packages/svelte",
+    "build:types": "tsc --build",
+    "build:docs": "remark --output --use remark-toc --use remark-code-import --use unified-prettier README.md packages/*/README.md examples && cp -f README.md packages/svelte",
     "contributors:add": "all-contributors add",
     "contributors:generate": "all-contributors generate",
     "install:3": "./scripts/install-dependencies 3",
diff --git a/packages/svelte-core/README.md b/packages/svelte-core/README.md
new file mode 100644
index 0000000..98ad590
--- /dev/null
+++ b/packages/svelte-core/README.md
@@ -0,0 +1,147 @@
+# @testing-library/svelte-core
+
+Do you want to build your own Svelte testing library? You may want to use our
+rendering core, which abstracts away differences in Svelte versions to provide a
+simple API to render Svelte components into the document and clean them up
+afterwards
+
+## Table of Contents
+
+- [Example Usage](#example-usage)
+- [API](#api)
+  - [`setup`](#setup)
+  - [`mount`](#mount)
+  - [`cleanup`](#cleanup)
+  - [`addCleanupTask`](#addcleanuptask)
+  - [`removeCleanupTask`](#removecleanuptask)
+  - [Utility types](#utility-types)
+
+## Example Usage
+
+```ts
+import { beforeEach } from 'vitest'
+import { cleanup, mount, setup } from '@testing-library/svelte-core'
+import type {
+  Component,
+  ComponentType,
+  ComponentOptions,
+  Props,
+  Exports,
+} from '@testing-library/svelte-core/types'
+
+import { bindQueries, type Screen } from './bring-your-own-queries.js'
+
+beforeEach(() => {
+  cleanup()
+})
+
+export interface RenderResult<C extends Component> {
+  screen: Screen
+  component: Exports<C>
+  target: HTMLElement
+  rerender: (props: Partial<Props<C>>) => Promise<void>
+  unmount: () => void
+}
+
+export const render = <C extends Component>(
+  component: ComponentType<C>,
+  options: ComponentOptions<C>
+): RenderResult<C> => {
+  const { baseElement, target, mountOptions } = setup(options)
+  const { component, unmount, rerender } = mount(component, mountOptions)
+  const screen = bindQueries(baseElement)
+
+  return { screen, component, target, rerender, unmount }
+}
+```
+
+## API
+
+### `setup`
+
+Validate options and prepare document elements for rendering.
+
+```ts
+const { baseElement, target, mountOptions } = setup(options, renderOptions)
+```
+
+| Argument           | Type                                     | Description                                    |
+| ------------------ | ---------------------------------------- | ---------------------------------------------- |
+| `componentOptions` | `Props` or partial [component options][] | Options for how the component will be rendered |
+| `setupOptions`     | `{ baseElement?: HTMLElement }`          | Optionally override `baseElement`              |
+
+| Result         | Type                  | Description                                 | Default                             |
+| -------------- | --------------------- | ------------------------------------------- | ----------------------------------- |
+| `baseElement`  | `HTMLElement`         | The base element                            | `document.body`                     |
+| `target`       | `HTMLElement`         | The component's `target` element            | `<div>` appended to `document.body` |
+| `mountOptions` | [component options][] | Validated Svelte options to pass to `mount` | `{ target, props: {} }`             |
+
+[component options]: https://svelte.dev/docs/client-side-component-api
+
+### `mount`
+
+Mount a Svelte component into the document.
+
+```ts
+const { component, unmount, rerender } = mount(Component, options)
+```
+
+| Argument    | Type                  | Description                  |
+| ----------- | --------------------- | ---------------------------- |
+| `Component` | [Svelte component][]  | An imported Svelte component |
+| `options`   | [component options][] | Svelte component options     |
+
+| Result      | Type                                       | Description                                        |
+| ----------- | ------------------------------------------ | -------------------------------------------------- |
+| `component` | [component instance][]                     | The component instance                             |
+| `unmount`   | `() => void`                               | Unmount the component from the document            |
+| `rerender`  | `(props: Partial<Props>) => Promise<void>` | Update the component's props and wait for rerender |
+
+[Svelte component]: https://svelte.dev/docs/svelte-components
+[component instance]: https://svelte.dev/docs/client-side-component-api
+
+### `cleanup`
+
+Cleanup rendered components and added elements. Call this when your tests are
+over.
+
+```ts
+cleanup()
+```
+
+### `addCleanupTask`
+
+Add a custom cleanup task to be called with `cleanup()`
+
+```ts
+addCleanupTask(() => {
+  // ...reset something
+})
+```
+
+### `removeCleanupTask`
+
+Remove a cleanup task from `cleanup()`. Useful if a cleanup task can only be run
+once and may be run outside of `cleanup`
+
+```ts
+const customCleanup = () => {
+  // ...reset something
+}
+
+addCleanupTask(customCleanup)
+
+const manuallyCleanupEarly = () => {
+  customCleanup()
+  removeCleanupTask(customCleanup)
+}
+```
+
+### Utility types
+
+This module exports various utility types from
+`@testing-library/svelte-core/types`. They adapt to whatever Svelte version is
+installed, and can be used to get type signatures for imported components,
+props, events, etc.
+
+See [`./types.d.ts`](./types.d.ts) for the full list of types available.
diff --git a/packages/svelte-core/package.json b/packages/svelte-core/package.json
new file mode 100644
index 0000000..1d7e4ce
--- /dev/null
+++ b/packages/svelte-core/package.json
@@ -0,0 +1,52 @@
+{
+  "name": "@testing-library/svelte-core",
+  "version": "0.0.0-semantically-released",
+  "description": "Core rendering and cleanup logic for Svelte testing utilities.",
+  "exports": {
+    ".": {
+      "types": "./dist/index.d.ts",
+      "default": "./src/index.js"
+    },
+    "./types": {
+      "types": "./types.d.ts"
+    }
+  },
+  "type": "module",
+  "license": "MIT",
+  "homepage": "https://github.com/testing-library/svelte-testing-library#readme",
+  "repository": {
+    "type": "git",
+    "url": "git+https://github.com/testing-library/svelte-testing-library.git",
+    "directory": "packages/svelte-core"
+  },
+  "bugs": {
+    "url": "https://github.com/testing-library/svelte-testing-library/issues"
+  },
+  "engines": {
+    "node": ">=16"
+  },
+  "keywords": [
+    "testing",
+    "svelte",
+    "ui",
+    "dom",
+    "jsdom",
+    "unit",
+    "integration",
+    "functional",
+    "end-to-end",
+    "e2e"
+  ],
+  "files": [
+    "dist",
+    "src",
+    "types.d.ts"
+  ],
+  "peerDependencies": {
+    "svelte": "^3 || ^4 || ^5 || ^5.0.0-next.0"
+  },
+  "publishConfig": {
+    "access": "public",
+    "provenance": true
+  }
+}
diff --git a/packages/svelte/src/core/cleanup.js b/packages/svelte-core/src/cleanup.js
similarity index 100%
rename from packages/svelte/src/core/cleanup.js
rename to packages/svelte-core/src/cleanup.js
diff --git a/packages/svelte/src/core/index.js b/packages/svelte-core/src/index.js
similarity index 100%
rename from packages/svelte/src/core/index.js
rename to packages/svelte-core/src/index.js
diff --git a/packages/svelte/src/core/mount.js b/packages/svelte-core/src/mount.js
similarity index 89%
rename from packages/svelte/src/core/mount.js
rename to packages/svelte-core/src/mount.js
index 6e5d1c5..4d65f82 100644
--- a/packages/svelte/src/core/mount.js
+++ b/packages/svelte-core/src/mount.js
@@ -62,13 +62,13 @@ const mountComponent = IS_MODERN_SVELTE ? mountModern : mountLegacy
 /**
  * Render a Svelte component into the document.
  *
- * @template {import('./types.js').Component} C
- * @param {import('./types.js').ComponentType<C>} Component
- * @param {import('./types.js').MountOptions<C>} options
+ * @template {import('../types.js').Component} C
+ * @param {import('../types.js').ComponentType<C>} Component
+ * @param {import('../types.js').MountOptions<C>} options
  * @returns {{
  *   component: C
  *   unmount: () => void
- *   rerender: (props: Partial<import('./types.js').Props<C>>) => Promise<void>
+ *   rerender: (props: Partial<import('../types.js').Props<C>>) => Promise<void>
  * }}
  */
 const mount = (Component, options) => {
diff --git a/packages/svelte/src/core/props.svelte.js b/packages/svelte-core/src/props.svelte.js
similarity index 100%
rename from packages/svelte/src/core/props.svelte.js
rename to packages/svelte-core/src/props.svelte.js
diff --git a/packages/svelte/src/core/setup.js b/packages/svelte-core/src/setup.js
similarity index 82%
rename from packages/svelte/src/core/setup.js
rename to packages/svelte-core/src/setup.js
index 25466be..4008c24 100644
--- a/packages/svelte/src/core/setup.js
+++ b/packages/svelte-core/src/setup.js
@@ -27,9 +27,9 @@ class UnknownSvelteOptionsError extends TypeError {
 /**
  * Validate a component's mount options.
  *
- * @template {import('./types.js').Component} C
- * @param {import('./types.js').ComponentOptions<C>} options - props or mount options
- * @returns {Partial<import('./types.js').MountOptions<C>>}
+ * @template {import('../types.js').Component} C
+ * @param {import('../types.js').ComponentOptions<C>} options - props or mount options
+ * @returns {Partial<import('../types.js').MountOptions<C>>}
  */
 const validateOptions = (options) => {
   const isProps = !Object.keys(options).some((option) =>
@@ -55,16 +55,16 @@ const validateOptions = (options) => {
 /**
  * Set up the document to render a component.
  *
- * @template {import('./types.js').Component} C
- * @param {import('./types.js').ComponentOptions<C>} componentOptions - props or mount options
+ * @template {import('../types.js').Component} C
+ * @param {import('../types.js').ComponentOptions<C>} componentOptions - props or mount options
  * @param {{ baseElement?: HTMLElement | undefined }} setupOptions - base element of the document to bind any queries
  * @returns {{
  *   baseElement: HTMLElement,
  *   target: HTMLElement,
- *   mountOptions: import('./types.js).MountOptions<C>
+ *   mountOptions: import('../types.js').MountOptions<C>
  * }}
  */
-const setup = (componentOptions, setupOptions) => {
+const setup = (componentOptions, setupOptions = {}) => {
   const mountOptions = validateOptions(componentOptions)
 
   const baseElement =
diff --git a/packages/svelte/src/core/svelte-version.js b/packages/svelte-core/src/svelte-version.js
similarity index 100%
rename from packages/svelte/src/core/svelte-version.js
rename to packages/svelte-core/src/svelte-version.js
diff --git a/packages/svelte-core/tsconfig.json b/packages/svelte-core/tsconfig.json
new file mode 100644
index 0000000..9e5fee6
--- /dev/null
+++ b/packages/svelte-core/tsconfig.json
@@ -0,0 +1,15 @@
+{
+  "compilerOptions": {
+    "module": "node16",
+    "allowJs": true,
+    "skipLibCheck": true,
+    "strict": true,
+    "composite": true,
+    "declaration": true,
+    "declarationMap": true,
+    "emitDeclarationOnly": true,
+    "rootDir": "src",
+    "outDir": "dist"
+  },
+  "include": ["src", "types.d.ts"]
+}
diff --git a/packages/svelte/src/core/types.d.ts b/packages/svelte-core/types.d.ts
similarity index 100%
rename from packages/svelte/src/core/types.d.ts
rename to packages/svelte-core/types.d.ts
diff --git a/packages/svelte/package.json b/packages/svelte/package.json
index 11837b0..098d966 100644
--- a/packages/svelte/package.json
+++ b/packages/svelte/package.json
@@ -50,7 +50,7 @@
   ],
   "files": [
     "src",
-    "types"
+    "dist"
   ],
   "peerDependencies": {
     "svelte": "^3 || ^4 || ^5 || ^5.0.0-next.0",
@@ -66,6 +66,11 @@
     }
   },
   "dependencies": {
-    "@testing-library/dom": "9.x.x || 10.x.x"
+    "@testing-library/dom": "9.x.x || 10.x.x",
+    "@testing-library/svelte-core": "workspace:*"
+  },
+  "publishConfig": {
+    "access": "public",
+    "provenance": true
   }
 }
diff --git a/packages/svelte/src/pure.js b/packages/svelte/src/pure.js
index 8ae70f4..ca39998 100644
--- a/packages/svelte/src/pure.js
+++ b/packages/svelte/src/pure.js
@@ -5,15 +5,14 @@ import {
   getQueriesForElement,
   prettyDOM,
 } from '@testing-library/dom'
+import * as Core from '@testing-library/svelte-core'
 import * as Svelte from 'svelte'
 
-import * as Core from './core/index.js'
-
 /**
  * Customize how Svelte renders the component.
  *
- * @template {import('./core/types.js').Component} C
- * @typedef {import('./core/types.js').ComponentOptions<C>} SvelteComponentOptions
+ * @template {import('@testing-library/svelte-core/types').Component} C
+ * @typedef {import('@testing-library/svelte-core/types').ComponentOptions<C>} SvelteComponentOptions
  */
 
 /**
@@ -29,15 +28,15 @@ import * as Core from './core/index.js'
 /**
  * The rendered component and bound testing functions.
  *
- * @template {import('./core/types.js').Component} C
+ * @template {import('@testing-library/svelte-core/types').Component} C
  * @template {import('@testing-library/dom').Queries} [Q=typeof import('@testing-library/dom').queries]
  *
  * @typedef {{
  *   container: HTMLElement
  *   baseElement: HTMLElement
- *   component: import('./core/types.js').Exports<C>
+ *   component: import('@testing-library/svelte-core/types').Exports<C>
  *   debug: (el?: HTMLElement | DocumentFragment) => void
- *   rerender: (props: Partial<import('./core/types.js').Props<C>>) => Promise<void>
+ *   rerender: (props: Partial<import('@testing-library/svelte-core/types').Props<C>>) => Promise<void>
  *   unmount: () => void
  * } & {
  *   [P in keyof Q]: import('@testing-library/dom').BoundFunction<Q[P]>
@@ -47,10 +46,10 @@ import * as Core from './core/index.js'
 /**
  * Render a component into the document.
  *
- * @template {import('./core/types.js').Component} C
+ * @template {import('@testing-library/svelte-core/types').Component} C
  * @template {import('@testing-library/dom').Queries} [Q=typeof import('@testing-library/dom').queries]
  *
- * @param {import('./core/types.js').ComponentType<C>} Component - The component to render.
+ * @param {import('@testing-library/svelte-core/types').ComponentType<C>} Component - The component to render.
  * @param {SvelteComponentOptions<C>} options - Customize how Svelte renders the component.
  * @param {RenderOptions<Q>} renderOptions - Customize how Testing Library sets up the document and binds queries.
  * @returns {RenderResult<C, Q>} The rendered component and bound testing functions.
@@ -155,5 +154,5 @@ for (const [key, baseEvent] of Object.entries(baseFireEvent)) {
   fireEvent[key] = async (...args) => act(() => baseEvent(...args))
 }
 
-export { UnknownSvelteOptionsError } from './core/index.js'
+export { UnknownSvelteOptionsError } from '@testing-library/svelte-core'
 export { act, cleanup, fireEvent, render, setup }
diff --git a/packages/svelte/src/vite.js b/packages/svelte/src/vite.js
index b57c886..b859b59 100644
--- a/packages/svelte/src/vite.js
+++ b/packages/svelte/src/vite.js
@@ -1,6 +1,8 @@
 import path from 'node:path'
 import url from 'node:url'
 
+const STL_PACKAGES = ['@testing-library/svelte', '@testing-library/svelte-core']
+
 /**
  * Vite plugin to configure @testing-library/svelte.
  *
@@ -107,17 +109,25 @@ const addNoExternal = (config) => {
     return
   }
 
-  for (const rule of noExternal) {
-    if (typeof rule === 'string' && rule === '@testing-library/svelte') {
-      return
-    }
+  const missingPackages = []
 
-    if (rule instanceof RegExp && rule.test('@testing-library/svelte')) {
-      return
+  for (const packageName of STL_PACKAGES) {
+    const isIncluded = noExternal.some(
+      (rule) =>
+        (typeof rule === 'string' && rule === packageName) ||
+        (rule instanceof RegExp && rule.test(packageName))
+    )
+
+    if (!isIncluded) {
+      missingPackages.push(packageName)
     }
   }
 
-  noExternal.push('@testing-library/svelte')
+  if (missingPackages.length === 0) {
+    return
+  }
+
+  noExternal.push(...missingPackages)
   ssr.noExternal = noExternal
   config.ssr = ssr
 }
diff --git a/packages/svelte/tsconfig.json b/packages/svelte/tsconfig.json
index 66fe363..2e23d68 100644
--- a/packages/svelte/tsconfig.json
+++ b/packages/svelte/tsconfig.json
@@ -1,4 +1,5 @@
 {
+  "references": [{ "path": "../svelte-core" }],
   "compilerOptions": {
     "module": "node16",
     "allowJs": true,
diff --git a/prettier.config.js b/prettier.config.js
index 55343f2..19919d0 100644
--- a/prettier.config.js
+++ b/prettier.config.js
@@ -13,7 +13,6 @@ export default {
     {
       files: 'examples/**/*.md',
       options: {
-        printWidth: 80,
         proseWrap: 'always',
       },
     },
diff --git a/tests/vite-plugin.test.js b/tests/vite-plugin.test.js
index 92fc8f5..480a260 100644
--- a/tests/vite-plugin.test.js
+++ b/tests/vite-plugin.test.js
@@ -147,19 +147,47 @@ describe.skipIf(IS_JEST)('vite plugin', () => {
   test.each([
     {
       config: () => ({ ssr: { noExternal: [] } }),
-      expectedNoExternal: ['@testing-library/svelte'],
+      expectedNoExternal: [
+        '@testing-library/svelte',
+        '@testing-library/svelte-core',
+      ],
     },
     {
       config: () => ({}),
-      expectedNoExternal: ['@testing-library/svelte'],
+      expectedNoExternal: [
+        '@testing-library/svelte',
+        '@testing-library/svelte-core',
+      ],
     },
     {
       config: () => ({ ssr: { noExternal: 'other-file.js' } }),
-      expectedNoExternal: ['other-file.js', '@testing-library/svelte'],
+      expectedNoExternal: [
+        'other-file.js',
+        '@testing-library/svelte',
+        '@testing-library/svelte-core',
+      ],
     },
     {
       config: () => ({ ssr: { noExternal: /other/u } }),
-      expectedNoExternal: [/other/u, '@testing-library/svelte'],
+      expectedNoExternal: [
+        /other/u,
+        '@testing-library/svelte',
+        '@testing-library/svelte-core',
+      ],
+    },
+    {
+      config: () => ({ ssr: { noExternal: '@testing-library/svelte' } }),
+      expectedNoExternal: [
+        '@testing-library/svelte',
+        '@testing-library/svelte-core',
+      ],
+    },
+    {
+      config: () => ({ ssr: { noExternal: '@testing-library/svelte-core' } }),
+      expectedNoExternal: [
+        '@testing-library/svelte-core',
+        '@testing-library/svelte',
+      ],
     },
   ])('adds noExternal rule', ({ config, expectedNoExternal }) => {
     const subject = svelteTesting({
@@ -183,10 +211,6 @@ describe.skipIf(IS_JEST)('vite plugin', () => {
       config: () => ({ ssr: { noExternal: true } }),
       expectedNoExternal: true,
     },
-    {
-      config: () => ({ ssr: { noExternal: '@testing-library/svelte' } }),
-      expectedNoExternal: '@testing-library/svelte',
-    },
     {
       config: () => ({ ssr: { noExternal: /svelte/u } }),
       expectedNoExternal: /svelte/u,
diff --git a/tsconfig.json b/tsconfig.json
index 493e5db..a36e1bf 100644
--- a/tsconfig.json
+++ b/tsconfig.json
@@ -1,4 +1,7 @@
 {
-  "references": [{ "path": "packages/svelte" }],
+  "references": [
+    { "path": "packages/svelte" },
+    { "path": "packages/svelte-core" }
+  ],
   "files": []
 }