diff --git a/packages/core/src/Extension.ts b/packages/core/src/Extension.ts
index 5143f823..499eaede 100644
--- a/packages/core/src/Extension.ts
+++ b/packages/core/src/Extension.ts
@@ -128,6 +128,12 @@ export interface ExtensionSpec<Options = {}, Commands = {}> {
     options: Options,
     editor: Editor,
   }) => Commands,
+  createShortcuts?: (this: {
+    options: Options,
+    editor: Editor,
+  }) => {
+    [key: string]: any
+  },
 }
 
 export type Extension = Required<Omit<ExtensionSpec, 'defaultOptions'> & {
diff --git a/packages/core/src/utils/getAttributesFromExtensions.ts b/packages/core/src/utils/getAttributesFromExtensions.ts
index 4cd83410..5e82ff19 100644
--- a/packages/core/src/utils/getAttributesFromExtensions.ts
+++ b/packages/core/src/utils/getAttributesFromExtensions.ts
@@ -8,7 +8,7 @@ import {
 } from '../types'
 
 export default function getAttributesFromExtensions(extensions: Extensions) {
-  const allAttributes: ExtensionAttribute[] = []
+  const extensionAttributes: ExtensionAttribute[] = []
   const { nodeExtensions, markExtensions } = splitExtensions(extensions)
   const nodeAndMarkExtensions = [...nodeExtensions, ...markExtensions]
   const defaultAttribute: Required<Attribute> = {
@@ -27,16 +27,18 @@ export default function getAttributesFromExtensions(extensions: Extensions) {
 
     globalAttributes.forEach(globalAttribute => {
       globalAttribute.types.forEach(type => {
-        Object.entries(globalAttribute.attributes).forEach(([name, attribute]) => {
-          allAttributes.push({
-            type,
-            name,
-            attribute: {
-              ...defaultAttribute,
-              ...attribute,
-            },
+        Object
+          .entries(globalAttribute.attributes)
+          .forEach(([name, attribute]) => {
+            extensionAttributes.push({
+              type,
+              name,
+              attribute: {
+                ...defaultAttribute,
+                ...attribute,
+              },
+            })
           })
-        })
       })
     })
   })
@@ -48,17 +50,19 @@ export default function getAttributesFromExtensions(extensions: Extensions) {
 
     const attributes = extension.createAttributes.bind(context)() as Attributes
 
-    Object.entries(attributes).forEach(([name, attribute]) => {
-      allAttributes.push({
-        type: extension.name,
-        name,
-        attribute: {
-          ...defaultAttribute,
-          ...attribute,
-        },
+    Object
+      .entries(attributes)
+      .forEach(([name, attribute]) => {
+        extensionAttributes.push({
+          type: extension.name,
+          name,
+          attribute: {
+            ...defaultAttribute,
+            ...attribute,
+          },
+        })
       })
-    })
   })
 
-  return allAttributes
+  return extensionAttributes
 }
diff --git a/packages/core/src/utils/getRenderedAttributes.ts b/packages/core/src/utils/getRenderedAttributes.ts
index e702ee69..6c76c5ca 100644
--- a/packages/core/src/utils/getRenderedAttributes.ts
+++ b/packages/core/src/utils/getRenderedAttributes.ts
@@ -1,18 +1,18 @@
 import { Node, Mark } from 'prosemirror-model'
 import { ExtensionAttribute } from '../types'
 
-export default function getRenderedAttributes(node: Node | Mark, attributes: ExtensionAttribute[]) {
-  return attributes
+export default function getRenderedAttributes(nodeOrMark: Node | Mark, extensionAttributes: ExtensionAttribute[]): { [key: string]: any } {
+  return extensionAttributes
     .filter(item => item.attribute.rendered)
     .map(item => {
       // TODO: fallback if renderHTML doesn’t exist
-      return item.attribute.renderHTML(node.attrs)
+      return item.attribute.renderHTML(nodeOrMark.attrs)
     })
-    .reduce((accumulator, value) => {
+    .reduce((attributes, attribute) => {
       // TODO: add support for "class" and "style" merge
       return {
-        ...accumulator,
-        ...value,
+        ...attributes,
+        ...attribute,
       }
     }, {})
 }
diff --git a/packages/extension-document/index.ts b/packages/extension-document/index.ts
index 90a08e89..0bd04b43 100644
--- a/packages/extension-document/index.ts
+++ b/packages/extension-document/index.ts
@@ -1,27 +1,7 @@
 import { createNode } from '@tiptap/core'
 
-// export default new Node()
-//   .name('document')
-//   .topNode()
-//   .schema(() => ({
-//     content: 'block+',
-//   }))
-//   .create()
-
-// export default class Document extends Node {
-
-//   name = 'document'
-
-//   topNode = true
-
-//   content = 'block+'
-
-// }
-
 export default createNode({
   name: 'document',
-
   topNode: true,
-
   content: 'block+',
 })
diff --git a/packages/extension-paragraph/index.ts b/packages/extension-paragraph/index.ts
index 891a9685..03af6596 100644
--- a/packages/extension-paragraph/index.ts
+++ b/packages/extension-paragraph/index.ts
@@ -1,5 +1,4 @@
 import { createNode } from '@tiptap/core'
-// import { DOMOutputSpecArray } from 'prosemirror-model'
 // import ParagraphComponent from './paragraph.vue'
 
 // export type ParagraphCommand = () => Command
@@ -10,54 +9,6 @@ import { createNode } from '@tiptap/core'
 //   }
 // }
 
-// export default new Node()
-//   .name('paragraph')
-//   .schema(() => ({
-//     content: 'inline*',
-//     group: 'block',
-//     parseDOM: [{ tag: 'p' }],
-//     toDOM: () => ['p', 0],
-//     // toVue: ParagraphComponent,
-//   }))
-//   .commands(({ name }) => ({
-//     [name]: () => ({ commands }) => {
-//       return commands.toggleBlockType(name, 'paragraph')
-//     },
-//   }))
-//   .keys(({ editor }) => ({
-//     'Mod-Alt-0': () => editor.paragraph(),
-//   }))
-//   .create()
-
-// export default class Paragraph extends Node implements INode {
-
-//   name = 'paragraph'
-
-//   group = 'block'
-
-//   content = 'inline*'
-
-//   createAttributes() {
-//     return {
-//       // default rendering
-//       class: {
-//         default: 'jooo',
-//       },
-//     }
-//   }
-
-//   parseHTML() {
-//     return [
-//       { tag: 'p' },
-//     ]
-//   }
-
-//   renderHTML() {
-//     return ['p', 0] as const
-//   }
-
-// }
-
 export default createNode({
   name: 'paragraph',
 
@@ -88,7 +39,7 @@ export default createNode({
         default: '123',
         rendered: true,
         renderHTML: attributes => ({
-          // class: `foo-${attributes.id}`,
+          class: `foo-${attributes.id}`,
           id: 'foo',
         }),
       },
@@ -104,4 +55,18 @@ export default createNode({
   renderHTML({ attributes }) {
     return ['p', attributes, 0]
   },
+
+  createCommands() {
+    return {
+      paragraph: () => ({ commands }) => {
+        return commands.toggleBlockType('paragraph', 'paragraph')
+      },
+    }
+  },
+
+  createShortcuts() {
+    return {
+      'Mod-Alt-0': () => this.editor.paragraph(),
+    }
+  },
 })
diff --git a/packages/extension-text/index.ts b/packages/extension-text/index.ts
index 65d5878d..e94a24ac 100644
--- a/packages/extension-text/index.ts
+++ b/packages/extension-text/index.ts
@@ -1,22 +1,6 @@
 import { createNode } from '@tiptap/core'
 
-// export default new Node()
-//   .name('text')
-//   .schema(() => ({
-//     group: 'inline',
-//   }))
-//   .create()
-
-// export default class Text extends Node {
-
-//   name = 'text'
-
-//   group = 'inline'
-
-// }
-
 export default createNode({
   name: 'text',
-
   group: 'inline',
 })