diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index 35a7c15..9d44a3b 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -21,7 +21,7 @@ jobs:
       - uses: pnpm/action-setup@v4
         name: Install pnpm
         with:
-          version: 8
+          version: 9.4.0+sha512.f549b8a52c9d2b8536762f99c0722205efc5af913e77835dbccc3b0b0b2ca9e7dc8022b78062c17291c48e88749c70ce88eb5a74f1fa8c4bf5e18bb46c8bd83a
           run_install: false
 
       - name: Install Node.js
diff --git a/src-old/Button.js b/src-old/Button.js
deleted file mode 100644
index 7769e57..0000000
--- a/src-old/Button.js
+++ /dev/null
@@ -1,129 +0,0 @@
-const React = require('react');
-const PropTypes = require('prop-types');
-const ManagerContext = require('./ManagerContext');
-const { refType } = require("./propTypes");
-const specialAssign = require('./specialAssign');
-
-const checkedProps = {
-  ambManager: PropTypes.object.isRequired,
-  children: PropTypes.node.isRequired,
-  disabled: PropTypes.bool,
-  forwardedRef: refType,
-  tag: PropTypes.string
-};
-
-// List retrieved from https://www.w3schools.com/tags/att_disabled.asp
-const disabledSupportedTags = () => [
-  'button',
-  'fieldset',
-  'input',
-  'optgroup',
-  'option',
-  'select',
-  'textarea'
-];
-
-class AriaMenuButtonButton extends React.Component {
-  static propTypes = checkedProps;
-
-  static defaultProps = { tag: 'span' };
-
-  ref = React.createRef();
-
-  componentDidMount() {
-    this.props.ambManager.button = this;
-  }
-
-  componentWillUnmount() {
-    this.props.ambManager.destroy();
-  }
-
-  handleKeyDown = event => {
-    if (this.props.disabled) return;
-
-    const ambManager = this.props.ambManager;
-
-    switch (event.key) {
-      case 'ArrowDown':
-        event.preventDefault();
-        if (!ambManager.isOpen) {
-          ambManager.openMenu();
-        } else {
-          ambManager.focusItem(0);
-        }
-        break;
-      case 'Enter':
-      case ' ':
-        event.preventDefault();
-        ambManager.toggleMenu();
-        break;
-      case 'Escape':
-        ambManager.handleMenuKey(event);
-        break;
-      default:
-        // (Potential) letter keys
-        ambManager.handleButtonNonArrowKey(event);
-    }
-  };
-
-  handleClick = () => {
-    if (this.props.disabled) return;
-    this.props.ambManager.toggleMenu({}, { focusMenu: false });
-  };
-
-  setRef = instance => {
-    this.ref.current = instance;
-    if (typeof this.props.forwardedRef === "function") {
-      this.props.forwardedRef(instance);
-    } else if (this.props.forwardedRef) {
-      this.props.forwardedRef.current = instance;
-    }
-  };
-
-  render() {
-    const props = this.props;
-    const ambManager = this.props.ambManager;
-
-    const buttonProps = {
-      // "The menu button itself has a role of button."
-      role: 'button',
-      tabIndex: props.disabled ? '' : '0',
-      // "The menu button has an aria-haspopup property, set to true."
-      'aria-haspopup': true,
-      'aria-expanded': ambManager.isOpen,
-      'aria-disabled': props.disabled,
-      onKeyDown: this.handleKeyDown,
-      onClick: this.handleClick
-    };
-
-    const reserved = {};
-    specialAssign(reserved, checkedProps);
-    // The disabled property should be passed down to the Button element
-    // if the tag has support for disabled attribute. So it needs to be removed
-    // from the reserved property object
-    if (disabledSupportedTags().indexOf(props.tag) >= 0) {
-      delete reserved.disabled;
-    }
-    if (ambManager.options.closeOnBlur) {
-      buttonProps.onBlur = ambManager.handleBlur;
-    }
-    specialAssign(buttonProps, props, reserved);
-    specialAssign(buttonProps, { ref: this.setRef });
-
-    return React.createElement(props.tag, buttonProps, props.children);
-  }
-}
-
-module.exports = React.forwardRef((props, ref) => React.createElement(
-  ManagerContext.Consumer,
-  null,
-  (ambManager) => {
-    const buttonProps = { ambManager, forwardedRef: ref };
-    specialAssign(buttonProps, props, {
-      ambManager: checkedProps.ambManager,
-      children: checkedProps.children,
-      forwardedRef: checkedProps.forwardedRef
-    });
-    return React.createElement(AriaMenuButtonButton, buttonProps, props.children);
-  }
-));
diff --git a/src-old/ManagerContext.js b/src-old/ManagerContext.js
deleted file mode 100644
index 1e18078..0000000
--- a/src-old/ManagerContext.js
+++ /dev/null
@@ -1,5 +0,0 @@
-const React = require('react');
-
-const AriaMenuButtonManagerContext = React.createContext();
-
-module.exports = AriaMenuButtonManagerContext;
diff --git a/src-old/Menu.js b/src-old/Menu.js
deleted file mode 100644
index 52e0c8a..0000000
--- a/src-old/Menu.js
+++ /dev/null
@@ -1,118 +0,0 @@
-const React = require('react');
-const PropTypes = require('prop-types');
-const createTapListener = require('teeny-tap');
-const ManagerContext = require('./ManagerContext');
-const { refType } = require("./propTypes");
-const specialAssign = require('./specialAssign');
-
-const checkedProps = {
-  ambManager: PropTypes.object.isRequired,
-  children: PropTypes.oneOfType([PropTypes.func, PropTypes.node]).isRequired,
-  forwardedRef: refType,
-  tag: PropTypes.string
-};
-
-class AriaMenuButtonMenu extends React.Component {
-  static propTypes = checkedProps;
-  static defaultProps = { tag: 'div' };
-
-  ref = React.createRef();
-
-  componentDidMount() {
-    this.props.ambManager.menu = this;
-  }
-
-  componentDidUpdate() {
-    const ambManager = this.props.ambManager;
-    if (!ambManager.options.closeOnBlur) return;
-    if (ambManager.isOpen && !this.tapListener) {
-      this.addTapListener();
-    } else if (!ambManager.isOpen && this.tapListener) {
-      this.tapListener.remove();
-      delete this.tapListener;
-    }
-
-    if (!ambManager.isOpen) {
-      // Clear the ambManager's items, so they
-      // can be reloaded next time this menu opens
-      ambManager.clearItems();
-    }
-  }
-
-  componentWillUnmount() {
-    if (this.tapListener) this.tapListener.remove();
-    this.props.ambManager.destroy();
-  }
-
-  addTapListener = () => {
-    const el = this.ref.current;
-    if (!el) return;
-    const doc = el.ownerDocument;
-    if (!doc) return;
-    this.tapListener = createTapListener(doc.documentElement, this.handleTap);
-  };
-
-  handleTap = event => {
-    if (this.ref.current.contains(event.target)) return;
-    if (
-      this.props.ambManager.button.ref.current.contains(
-        event.target
-      )
-    )
-      return;
-    this.props.ambManager.closeMenu();
-  };
-
-  setRef = instance => {
-    this.ref.current = instance;
-    if (typeof this.props.forwardedRef === "function") {
-      this.props.forwardedRef(instance);
-    } else if (this.props.forwardedRef) {
-      this.props.forwardedRef.current = instance;
-    }
-  };
-
-  render() {
-    const props = this.props;
-    const ambManager = this.props.ambManager;
-
-    const childrenToRender = (function() {
-      if (typeof props.children === 'function') {
-        return props.children({ isOpen: ambManager.isOpen });
-      }
-      if (ambManager.isOpen) return props.children;
-      return false;
-    })();
-
-    if (!childrenToRender) return false;
-
-    const menuProps = {
-      onKeyDown: ambManager.handleMenuKey,
-      role: 'menu',
-      tabIndex: -1
-    };
-
-    if (ambManager.options.closeOnBlur) {
-      menuProps.onBlur = ambManager.handleBlur;
-    }
-
-    specialAssign(menuProps, props, checkedProps);
-    specialAssign(menuProps, { ref: this.setRef });
-
-    return React.createElement(props.tag, menuProps, childrenToRender);
-  }
-}
-
-module.exports = React.forwardRef((props, ref) => React.createElement(
-  ManagerContext.Consumer,
-  null,
-  (ambManager) => {
-    const buttonProps = { ambManager, forwardedRef: ref };
-    specialAssign(buttonProps, props, {
-      ambManager: checkedProps.ambManager,
-      children: checkedProps.children,
-      forwardedRef: checkedProps.forwardedRef
-    });
-    return React.createElement(AriaMenuButtonMenu, buttonProps, props.children);
-  }
-));
diff --git a/src-old/MenuItem.js b/src-old/MenuItem.js
deleted file mode 100644
index eb47cf1..0000000
--- a/src-old/MenuItem.js
+++ /dev/null
@@ -1,84 +0,0 @@
-const React = require('react');
-const PropTypes = require('prop-types');
-const ManagerContext = require('./ManagerContext');
-const { refType } = require("./propTypes");
-const specialAssign = require('./specialAssign');
-
-const checkedProps = {
-  ambManager: PropTypes.object.isRequired,
-  children: PropTypes.node.isRequired,
-  forwardedRef: refType,
-  tag: PropTypes.string,
-  text: PropTypes.string,
-  value: PropTypes.any
-};
-
-class AriaMenuButtonMenuItem extends React.Component {
-  static propTypes = checkedProps;
-  static defaultProps = { tag: 'div' };
-
-  ref = React.createRef();
-
-  componentDidMount() {
-    this.props.ambManager.addItem({
-      node: this.ref.current,
-      text: this.props.text
-    });
-  }
-
-  handleKeyDown = event => {
-    if (event.key !== 'Enter' && event.key !== ' ') return;
-    if (this.props.tag === 'a' && this.props.href) return;
-    event.preventDefault();
-    this.selectItem(event);
-  };
-
-  selectItem = event => {
-    // If there's no value, we'll send the child
-    const value = typeof this.props.value !== 'undefined'
-      ? this.props.value
-      : this.props.children;
-    this.props.ambManager.handleSelection(value, event);
-  };
-
-  setRef = instance => {
-    this.ref.current = instance;
-    if (typeof this.props.forwardedRef === "function") {
-      this.props.forwardedRef(instance);
-    } else if (this.props.forwardedRef) {
-      this.props.forwardedRef.current = instance;
-    }
-  };
-
-  render() {
-    const menuItemProps = {
-      onClick: this.selectItem,
-      onKeyDown: this.handleKeyDown,
-      role: 'menuitem',
-      tabIndex: '-1',
-      ref: this.setRef
-    };
-
-    specialAssign(menuItemProps, this.props, checkedProps);
-
-    return React.createElement(
-      this.props.tag,
-      menuItemProps,
-      this.props.children
-    );
-  }
-}
-
-module.exports = React.forwardRef((props, ref) => React.createElement(
-  ManagerContext.Consumer,
-  null,
-  (ambManager) => {
-    const buttonProps = { ambManager, forwardedRef: ref };
-    specialAssign(buttonProps, props, {
-      ambManager: checkedProps.ambManager,
-      children: checkedProps.children,
-      forwardedRef: checkedProps.forwardedRef
-    });
-    return React.createElement(AriaMenuButtonMenuItem, buttonProps, props.children);
-  }
-));
diff --git a/src-old/Wrapper.js b/src-old/Wrapper.js
deleted file mode 100644
index e813af7..0000000
--- a/src-old/Wrapper.js
+++ /dev/null
@@ -1,62 +0,0 @@
-const React = require('react');
-const PropTypes = require('prop-types');
-const createManager = require('./createManager');
-const ManagerContext = require('./ManagerContext');
-const { refType } = require("./propTypes");
-const specialAssign = require('./specialAssign');
-
-const checkedProps = {
-  children: PropTypes.node.isRequired,
-  forwardedRef: refType,
-  onMenuToggle: PropTypes.func,
-  onSelection: PropTypes.func,
-  closeOnSelection: PropTypes.bool,
-  closeOnBlur: PropTypes.bool,
-  tag: PropTypes.string
-};
-
-const managerOptionsFromProps = (props) => {
-  return {
-    onMenuToggle: props.onMenuToggle,
-    onSelection: props.onSelection,
-    closeOnSelection: props.closeOnSelection,
-    closeOnBlur: props.closeOnBlur,
-    id: props.id
-  }
-}
-
-class AriaMenuButtonWrapper extends React.Component {
-  static propTypes = checkedProps;
-  static defaultProps = { tag: 'div' };
-
-  constructor(props) {
-    super(props);
-    this.manager = createManager(managerOptionsFromProps(props));
-  }
-
-  componentDidUpdate() {
-    this.manager.updateOptions(managerOptionsFromProps(this.props))
-  }
-
-  render() {
-    const wrapperProps = {};
-    specialAssign(wrapperProps, this.props, checkedProps);
-
-    return React.createElement(
-      ManagerContext.Provider,
-      { value: this.manager },
-      React.createElement(
-        this.props.tag,
-        wrapperProps,
-        this.props.children,
-      ),
-    );
-  }
-}
-
-module.exports = React.forwardRef((props, ref) => {
-  const wrapperProps = { forwardedRef: ref };
-  specialAssign(wrapperProps, props, { children: checkedProps.children, forwardedRef: checkedProps.forwardedRef });
-  specialAssign(wrapperProps, { forwardedRef: ref });
-  return React.createElement(AriaMenuButtonWrapper, wrapperProps, props.children);
-});
diff --git a/src-old/__tests__/Button.test.js b/src-old/__tests__/Button.test.js
deleted file mode 100644
index dad92b3..0000000
--- a/src-old/__tests__/Button.test.js
+++ /dev/null
@@ -1,169 +0,0 @@
-const React = require('react');
-const ReactDOMServer = require('react-dom/server');
-const shallow = require('enzyme').shallow;
-const shallowToJson = require('enzyme-to-json').shallowToJson;
-const Button = require('../Button');
-const ManagerContext = require('../ManagerContext');
-const MockWrapper = require('./helpers/MockWrapper');
-const createMockKeyEvent = require('./helpers/createMockKeyEvent');
-const createMockManager = require('./helpers/createMockManager');
-const createManager = require('../createManager');
-
-const el = React.createElement;
-
-describe('<Button>', function() {
-  let shallowOptions;
-  let ambManager;
-  let downEvent;
-  let enterEvent;
-  let spaceEvent;
-  let escapeEvent;
-  let fEvent;
-
-  beforeEach(function() {
-    ambManager = createMockManager();
-    shallowOptions = {
-      wrappingComponent: ManagerContext.Provider,
-      wrappingComponentProps: { value: ambManager },
-    };
-    downEvent = createMockKeyEvent('ArrowDown');
-    enterEvent = createMockKeyEvent('Enter');
-    spaceEvent = createMockKeyEvent(' ');
-    escapeEvent = createMockKeyEvent('Escape');
-    fEvent = createMockKeyEvent(null, 70);
-  });
-
-  test('DOM with only required props and text child', function() {
-    const wrapper = shallow(el(Button, null, 'foo'), shallowOptions).dive().dive();
-    expect(shallowToJson(wrapper)).toMatchSnapshot();
-  });
-
-  test('no onBlur prop when closeOnBlur is false', function() {
-    const manager = createManager({ closeOnBlur: false });
-    const shallowOptions = {
-      wrappingComponent: ManagerContext.Provider,
-      wrappingComponentProps: { value: manager }
-    };
-    const wrapper = shallow(el(Button, null, ''), shallowOptions).dive().dive();
-    expect(shallowToJson(wrapper).props).not.toHaveProperty('onBlur');
-  });
-
-  test('DOM with all possible props and element child', function() {
-    const button = el(
-      Button,
-      {
-        id: 'foo',
-        className: 'bar',
-        style: { top: 2 },
-        tag: 'button',
-        disabled: true,
-        'data-something-something': 'seven' // arbitrary prop
-      },
-      el('span', null, 'hooha')
-    );
-    const wrapper = shallow(button, shallowOptions).dive().dive();
-    expect(shallowToJson(wrapper)).toMatchSnapshot();
-  });
-
-  test('click', function() {
-    const wrapper = shallow(el(Button, null, 'foo'), shallowOptions).dive().dive();
-    wrapper.simulate('click');
-
-    expect(ambManager.toggleMenu).toHaveBeenCalledTimes(1);
-  });
-
-  test('click when disabled', function() {
-    const wrapper = shallow(
-      el(Button, { disabled: true }, 'foo'),
-      shallowOptions
-    ).dive().dive();
-    wrapper.simulate('click');
-
-    expect(ambManager.toggleMenu).not.toHaveBeenCalled();
-  });
-
-  test('element has disabled attribute when disabled property is set to true', function() {
-    const wrapper = shallow(
-      el(Button, { disabled: true, tag: 'button' }, 'foo'),
-      shallowOptions
-    ).dive().dive();
-
-    expect(wrapper.props().disabled).toBeTruthy();
-  });
-
-  test('down arrow when closed', function() {
-    const wrapper = shallow(el(Button, null, 'foo'), shallowOptions).dive().dive();
-    wrapper.simulate('keyDown', downEvent);
-
-    expect(downEvent.preventDefault).toHaveBeenCalledTimes(1);
-    expect(ambManager.openMenu).toHaveBeenCalledTimes(1);
-    expect(ambManager.openMenu).toHaveBeenCalledWith();
-  });
-
-  test('down arrow when open', function() {
-    const wrapper = shallow(el(Button, null, 'foo'), shallowOptions).dive().dive();
-    ambManager.isOpen = true;
-    wrapper.simulate('keyDown', downEvent);
-
-    expect(downEvent.preventDefault).toHaveBeenCalledTimes(1);
-    expect(ambManager.openMenu).not.toHaveBeenCalled();
-  });
-
-  test('enter key', function() {
-    const wrapper = shallow(el(Button, null, 'foo'), shallowOptions).dive().dive();
-    wrapper.simulate('keyDown', enterEvent);
-
-    expect(enterEvent.preventDefault).toHaveBeenCalledTimes(1);
-    expect(ambManager.toggleMenu).toHaveBeenCalledTimes(1);
-  });
-
-  test('space key', function() {
-    const wrapper = shallow(el(Button, null, 'foo'), shallowOptions).dive().dive();
-    wrapper.simulate('keyDown', spaceEvent);
-
-    expect(spaceEvent.preventDefault).toHaveBeenCalledTimes(1);
-    expect(ambManager.toggleMenu).toHaveBeenCalledTimes(1);
-  });
-
-  test('escape key', function() {
-    const wrapper = shallow(el(Button, null, 'foo'), shallowOptions).dive().dive();
-    wrapper.simulate('keyDown', escapeEvent);
-
-    expect(ambManager.handleMenuKey).toHaveBeenCalledTimes(1);
-    expect(ambManager.handleMenuKey.mock.calls[0][0].key).toBe('Escape');
-  });
-
-  test('f key', function() {
-    const wrapper = shallow(el(Button, null, 'foo'), shallowOptions).dive().dive();
-    wrapper.simulate('keyDown', fEvent);
-
-    expect(ambManager.handleButtonNonArrowKey).toHaveBeenCalledTimes(1);
-    expect(ambManager.handleButtonNonArrowKey.mock.calls[0][0].keyCode).toBe(
-      70
-    );
-  });
-
-  test('enter key when disabled', function() {
-    const wrapper = shallow(
-      el(Button, { disabled: true }, 'foo'),
-      shallowOptions
-    ).dive().dive();
-    wrapper.simulate('keyDown', enterEvent);
-
-    expect(enterEvent.preventDefault).not.toHaveBeenCalled();
-    expect(ambManager.toggleMenu).not.toHaveBeenCalled();
-  });
-});
-
-describe('<Button> rendered via renderToString', function() {
-  test('does not throw', function() {
-    const output = ReactDOMServer.renderToString(
-      el(
-        MockWrapper,
-        { mockManager: createMockManager() },
-        el(Button, null, 'foo')
-      )
-    );
-    expect(output).toMatchSnapshot();
-  });
-});
diff --git a/src-old/__tests__/Menu.test.js b/src-old/__tests__/Menu.test.js
deleted file mode 100644
index c7a62bd..0000000
--- a/src-old/__tests__/Menu.test.js
+++ /dev/null
@@ -1,130 +0,0 @@
-const React = require('react');
-const ReactDOMServer = require('react-dom/server');
-const shallow = require('enzyme').shallow;
-const mount = require('enzyme').mount;
-const shallowToJson = require('enzyme-to-json').shallowToJson;
-const ManagerContext = require('../ManagerContext');
-const Menu = require('../Menu');
-const MockWrapper = require('./helpers/MockWrapper');
-const createMockManager = require('./helpers/createMockManager');
-const createManager = require('../createManager');
-
-const el = React.createElement;
-
-describe('<Menu>', function() {
-  let shallowOptions;
-  let ambManager;
-
-  beforeEach(function() {
-    ambManager = createMockManager();
-    shallowOptions = {
-      wrappingComponent: ManagerContext.Provider,
-      wrappingComponentProps: { value: ambManager }
-    };
-  });
-
-  test('closed Menu DOM with only required props and element child', function() {
-    const menuEl = el(Menu, null, el('div', null, 'foo'));
-    const wrapper = shallow(menuEl, shallowOptions).dive().dive();
-    expect(shallowToJson(wrapper)).toMatchSnapshot();
-  });
-
-  test('no onBlur prop when closeOnBlur is false', function() {
-    const manager = createManager({ closeOnBlur: false });
-    manager.isOpen = true;
-    const shallowOptions = {
-      wrappingComponent: ManagerContext.Provider,
-      wrappingComponentProps: { value: manager }
-    };
-    const menuEl = el(Menu, null, el('div', null, 'foo'));
-    const wrapper = shallow(menuEl, shallowOptions).dive().dive();
-    expect(shallowToJson(wrapper).props).not.toHaveProperty('onBlur');
-  });
-
-  test('open Menu DOM with only required props and element child', function() {
-    ambManager.isOpen = true;
-    const menuEl = el(Menu, null, el('div', null, el('div', null, 'foo')));
-    const wrapper = shallow(menuEl, shallowOptions).dive().dive();
-    expect(shallowToJson(wrapper)).toMatchSnapshot();
-  });
-
-  test('closed menu DOM with all possible props and function child', function() {
-    const childFunction = jest.fn().mockImplementation(function(menuState) {
-      return 'isOpen = ' + menuState.isOpen;
-    });
-    const menuEl = el(
-      Menu,
-      {
-        id: 'foo',
-        className: 'bar',
-        style: { bottom: 1 },
-        tag: 'ul',
-        'data-something-something': 'seven' // arbitrary prop
-      },
-      childFunction
-    );
-    const wrapper = shallow(menuEl, shallowOptions).dive().dive();
-    expect(shallowToJson(wrapper)).toMatchSnapshot();
-    expect(childFunction).toHaveBeenCalledTimes(1);
-    expect(childFunction.mock.calls[0]).toEqual([{ isOpen: false }]);
-  });
-
-  test('open menu DOM with all possible props and function child', function() {
-    ambManager.isOpen = true;
-    const childFunction = jest.fn().mockImplementation(function(menuState) {
-      return 'isOpen = ' + menuState.isOpen;
-    });
-    const menuEl = el(
-      Menu,
-      {
-        id: 'bar',
-        className: 'foo',
-        style: { left: 1 },
-        tag: 'section'
-      },
-      childFunction
-    );
-    const wrapper = shallow(menuEl, shallowOptions).dive().dive();
-    expect(shallowToJson(wrapper)).toMatchSnapshot();
-    expect(childFunction).toHaveBeenCalledTimes(1);
-    expect(childFunction.mock.calls[0]).toEqual([{ isOpen: true }]);
-  });
-
-  test('menu updating', function() {
-    ambManager.menuItems = [1, 2];
-    const childFunction = jest.fn();
-
-    class LittleApp extends React.Component {
-      state = { open: false };
-
-      toggleMenu = () => {
-        this.setState({ open: !this.state.open });
-      };
-
-      render() {
-        return el(
-          MockWrapper,
-          { mockManager: ambManager },
-          el(Menu, null, childFunction)
-        );
-      }
-    }
-
-    const wrapper = mount(el(LittleApp));
-    wrapper.instance().toggleMenu();
-    expect(ambManager.clearItems).toHaveBeenCalledTimes(1);
-  });
-});
-
-describe('<Menu> rendered via renderToString', function() {
-  test('does not throw', function() {
-    const output = ReactDOMServer.renderToString(
-      el(
-        MockWrapper,
-        { mockManager: createMockManager() },
-        el(Menu, null, el('div', null, 'foo'))
-      )
-    );
-    expect(output).toMatchSnapshot();
-  });
-});
diff --git a/src-old/__tests__/MenuItem.test.js b/src-old/__tests__/MenuItem.test.js
deleted file mode 100644
index 4833697..0000000
--- a/src-old/__tests__/MenuItem.test.js
+++ /dev/null
@@ -1,106 +0,0 @@
-const React = require('react');
-const ReactDOMServer = require('react-dom/server');
-const shallow = require('enzyme').shallow;
-const shallowToJson = require('enzyme-to-json').shallowToJson;
-const ManagerContext = require('../ManagerContext');
-const MenuItem = require('../MenuItem');
-const MockWrapper = require('./helpers/MockWrapper');
-const createMockKeyEvent = require('./helpers/createMockKeyEvent');
-const createMockManager = require('./helpers/createMockManager');
-
-const el = React.createElement;
-
-describe('<MenuItem>', function() {
-  let shallowOptions;
-  let ambManager;
-
-  beforeEach(function() {
-    ambManager = createMockManager();
-    shallowOptions = {
-      wrappingComponent: ManagerContext.Provider,
-      wrappingComponentProps: { value: ambManager }
-    };
-  });
-
-  it('DOM with only required props', function() {
-    const menuItem = el(MenuItem, null, 'foo');
-    const wrapper = shallow(menuItem, shallowOptions).dive().dive();
-    expect(shallowToJson(wrapper)).toMatchSnapshot();
-  });
-
-  it('DOM with all possible props and element child', function() {
-    const menuItem = el(
-      MenuItem,
-      {
-        className: 'foobar',
-        id: 'hogwash',
-        tag: 'li',
-        style: { right: '1em' },
-        text: 'horse',
-        value: 'lamb',
-        'data-something-something': 'seven' // arbitrary prop
-      },
-      el('a', { href: '#' }, 'foo')
-    );
-    const wrapper = shallow(menuItem, shallowOptions).dive().dive();
-    expect(shallowToJson(wrapper)).toMatchSnapshot();
-  });
-
-  it('click without specified value prop', function() {
-    const mockEvent = { bee: 'baa' };
-    const menuItem = el(MenuItem, null, 'foo');
-    const wrapper = shallow(menuItem, shallowOptions).dive().dive();
-    wrapper.simulate('click', mockEvent);
-    expect(ambManager.handleSelection).toHaveBeenCalledTimes(1);
-    expect(ambManager.handleSelection.mock.calls[0]).toEqual([
-      'foo',
-      mockEvent
-    ]);
-  });
-
-  it('click with specified value prop', function() {
-    const mockEvent = { bee: 'baa' };
-    const menuItem = el(MenuItem, { value: 'bar' }, 'foo');
-    const wrapper = shallow(menuItem, shallowOptions).dive().dive();
-    wrapper.simulate('click', mockEvent);
-    expect(ambManager.handleSelection).toHaveBeenCalledTimes(1);
-    expect(ambManager.handleSelection.mock.calls[0]).toEqual([
-      'bar',
-      mockEvent
-    ]);
-  });
-
-  it('click with specified value prop', function() {
-    const mockEnterEvent = createMockKeyEvent('Enter');
-    const mockSpaceEvent = createMockKeyEvent(' ');
-    const mockEscapeEvent = createMockKeyEvent('Escape');
-    const menuItem = el(MenuItem, null, 'foo');
-    const wrapper = shallow(menuItem, shallowOptions).dive().dive();
-
-    wrapper.simulate('keyDown', mockEnterEvent);
-    wrapper.simulate('keyDown', mockSpaceEvent);
-    wrapper.simulate('keyDown', mockEscapeEvent);
-    expect(ambManager.handleSelection).toHaveBeenCalledTimes(2);
-    expect(ambManager.handleSelection.mock.calls[0]).toEqual([
-      'foo',
-      mockEnterEvent
-    ]);
-    expect(ambManager.handleSelection.mock.calls[1]).toEqual([
-      'foo',
-      mockSpaceEvent
-    ]);
-  });
-});
-
-describe('<MenuItem> rendered via renderToString', function() {
-  it('does not throw', function() {
-    const output = ReactDOMServer.renderToString(
-      el(
-        MockWrapper,
-        { mockManager: createMockManager() },
-        el(MenuItem, null, 'foo')
-      )
-    );
-    expect(output).toMatchSnapshot();
-  });
-});
diff --git a/src-old/__tests__/__snapshots__/Button.test.js.snap b/src-old/__tests__/__snapshots__/Button.test.js.snap
deleted file mode 100644
index e5a57a6..0000000
--- a/src-old/__tests__/__snapshots__/Button.test.js.snap
+++ /dev/null
@@ -1,41 +0,0 @@
-// Jest Snapshot v1, https://goo.gl/fbAQLP
-
-exports[`<Button> DOM with all possible props and element child 1`] = `
-<button
-  aria-disabled={true}
-  aria-expanded={false}
-  aria-haspopup={true}
-  className="bar"
-  data-something-something="seven"
-  disabled={true}
-  id="foo"
-  onClick={[Function]}
-  onKeyDown={[Function]}
-  role="button"
-  style={
-    {
-      "top": 2,
-    }
-  }
-  tabIndex=""
->
-  <span>
-    hooha
-  </span>
-</button>
-`;
-
-exports[`<Button> DOM with only required props and text child 1`] = `
-<span
-  aria-expanded={false}
-  aria-haspopup={true}
-  onClick={[Function]}
-  onKeyDown={[Function]}
-  role="button"
-  tabIndex="0"
->
-  foo
-</span>
-`;
-
-exports[`<Button> rendered via renderToString does not throw 1`] = `"<div><span role="button" tabindex="0" aria-haspopup="true" aria-expanded="false">foo</span></div>"`;
diff --git a/src-old/__tests__/__snapshots__/Menu.test.js.snap b/src-old/__tests__/__snapshots__/Menu.test.js.snap
deleted file mode 100644
index 34ac6e5..0000000
--- a/src-old/__tests__/__snapshots__/Menu.test.js.snap
+++ /dev/null
@@ -1,54 +0,0 @@
-// Jest Snapshot v1, https://goo.gl/fbAQLP
-
-exports[`<Menu> closed Menu DOM with only required props and element child 1`] = `""`;
-
-exports[`<Menu> closed menu DOM with all possible props and function child 1`] = `
-<ul
-  className="bar"
-  data-something-something="seven"
-  id="foo"
-  onKeyDown={[MockFunction]}
-  role="menu"
-  style={
-    {
-      "bottom": 1,
-    }
-  }
-  tabIndex={-1}
->
-  isOpen = false
-</ul>
-`;
-
-exports[`<Menu> open Menu DOM with only required props and element child 1`] = `
-<div
-  onKeyDown={[MockFunction]}
-  role="menu"
-  tabIndex={-1}
->
-  <div>
-    <div>
-      foo
-    </div>
-  </div>
-</div>
-`;
-
-exports[`<Menu> open menu DOM with all possible props and function child 1`] = `
-<section
-  className="foo"
-  id="bar"
-  onKeyDown={[MockFunction]}
-  role="menu"
-  style={
-    {
-      "left": 1,
-    }
-  }
-  tabIndex={-1}
->
-  isOpen = true
-</section>
-`;
-
-exports[`<Menu> rendered via renderToString does not throw 1`] = `"<div></div>"`;
diff --git a/src-old/__tests__/__snapshots__/MenuItem.test.js.snap b/src-old/__tests__/__snapshots__/MenuItem.test.js.snap
deleted file mode 100644
index 7a23303..0000000
--- a/src-old/__tests__/__snapshots__/MenuItem.test.js.snap
+++ /dev/null
@@ -1,37 +0,0 @@
-// Jest Snapshot v1, https://goo.gl/fbAQLP
-
-exports[`<MenuItem> DOM with all possible props and element child 1`] = `
-<li
-  className="foobar"
-  data-something-something="seven"
-  id="hogwash"
-  onClick={[Function]}
-  onKeyDown={[Function]}
-  role="menuitem"
-  style={
-    {
-      "right": "1em",
-    }
-  }
-  tabIndex="-1"
->
-  <a
-    href="#"
-  >
-    foo
-  </a>
-</li>
-`;
-
-exports[`<MenuItem> DOM with only required props 1`] = `
-<div
-  onClick={[Function]}
-  onKeyDown={[Function]}
-  role="menuitem"
-  tabIndex="-1"
->
-  foo
-</div>
-`;
-
-exports[`<MenuItem> rendered via renderToString does not throw 1`] = `"<div><div role="menuitem" tabindex="-1">foo</div></div>"`;
diff --git a/src-old/__tests__/createManager.test.js b/src-old/__tests__/createManager.test.js
deleted file mode 100644
index 4a54e4a..0000000
--- a/src-old/__tests__/createManager.test.js
+++ /dev/null
@@ -1,192 +0,0 @@
-/**
- * @jest-environment jsdom
- */
-
-var createManager = require('../createManager');
-var createMockKeyEvent = require('./helpers/createMockKeyEvent');
-
-var mockNode = document.createElement('button');
-var nodeOne = document.createElement('button');
-nodeOne.focus = jest.fn();
-var nodeTwo = document.createElement('button');
-nodeTwo.focus = jest.fn();
-document.body.appendChild(nodeOne);
-document.body.appendChild(nodeTwo);
-
-function createManagerWithMockedElements(options) {
-  var manager = createManager(options);
-  manager.focusGroup.addMember({
-    node: nodeOne,
-    text: 'first'
-  });
-  manager.focusGroup.addMember({
-    node: nodeTwo,
-    text: 'second'
-  });
-  manager.button = {
-    ref: { current: mockNode },
-    setState: jest.fn()
-  };
-  manager.menu = {
-    setState: jest.fn()
-  };
-  manager.focusItem = jest.fn();
-  return manager;
-}
-
-describe('createManager', function() {
-  it('initalizes', function() {
-    var manager = createManagerWithMockedElements();
-    expect(manager.isOpen).toBe(false);
-    expect(manager.options.closeOnSelection).toBeTruthy();
-    expect(manager.options.closeOnBlur).toBeTruthy();
-  });
-
-  it('Manager#update', function() {
-    var manager = createManagerWithMockedElements({
-      onMenuToggle: jest.fn()
-    });
-    manager.update();
-    expect(manager.menu.setState).toHaveBeenCalledTimes(1);
-    expect(manager.menu.setState.mock.calls[0]).toEqual([
-      { isOpen: manager.isOpen }
-    ]);
-    expect(manager.button.setState).toHaveBeenCalledTimes(1);
-    expect(manager.button.setState.mock.calls[0]).toEqual([
-      { menuOpen: manager.isOpen }
-    ]);
-    expect(manager.options.onMenuToggle).toHaveBeenCalledTimes(1);
-    expect(manager.options.onMenuToggle.mock.calls[0]).toEqual([
-      { isOpen: manager.isOpen }
-    ]);
-  });
-
-  it('Manager#openMenu without focusing in menu', function() {
-    var manager = createManagerWithMockedElements();
-    manager.openMenu({ focusMenu: false });
-    expect(manager.isOpen).toBe(true);
-    expect(manager.menu.setState).toHaveBeenCalledTimes(1);
-    expect(manager.menu.setState.mock.calls[0]).toEqual([{ isOpen: true }]);
-    expect(manager.button.setState).toHaveBeenCalledTimes(1);
-    expect(manager.button.setState.mock.calls[0]).toEqual([{ menuOpen: true }]);
-
-    return new Promise(function(resolve) {
-      setTimeout(function() {
-        expect(manager.focusItem).toHaveBeenCalledTimes(0);
-        resolve();
-      }, 0);
-    });
-  });
-
-  it('Manager#openMenu focusing in menu', function() {
-    var manager = createManagerWithMockedElements();
-    manager.openMenu();
-    expect(manager.isOpen).toBe(true);
-    expect(manager.menu.setState).toHaveBeenCalledTimes(1);
-    expect(manager.menu.setState.mock.calls[0]).toEqual([{ isOpen: true }]);
-    expect(manager.button.setState).toHaveBeenCalledTimes(1);
-    expect(manager.button.setState.mock.calls[0]).toEqual([{ menuOpen: true }]);
-
-    return new Promise(function(resolve) {
-      setTimeout(function() {
-        expect(manager.focusItem).toHaveBeenCalledTimes(1);
-        expect(manager.focusItem.mock.calls[0]).toEqual([0]);
-        resolve();
-      }, 0);
-    });
-  });
-
-  it('Manager#closeMenu focusing on button', function() {
-    mockNode.focus = jest.fn();
-
-    var manager = createManagerWithMockedElements();
-    manager.isOpen = true;
-    manager.closeMenu({ focusButton: true });
-
-    expect(manager.isOpen).toBe(false);
-    expect(manager.menu.setState).toHaveBeenCalledTimes(1);
-    expect(manager.menu.setState.mock.calls[0]).toEqual([{ isOpen: false }]);
-    expect(manager.button.setState).toHaveBeenCalledTimes(1);
-    expect(manager.button.setState.mock.calls[0]).toEqual([
-      { menuOpen: false }
-    ]);
-    expect(mockNode.focus).toHaveBeenCalledTimes(1);
-  });
-
-  it('Manager#closeMenu without focusing on button', function() {
-    mockNode.focus = jest.fn();
-
-    var manager = createManagerWithMockedElements();
-    manager.isOpen = true;
-    manager.closeMenu({ focusButton: false });
-
-    expect(mockNode.focus).not.toHaveBeenCalled();
-  });
-
-  it('Manager#toggleMenu when closed', function() {
-    var manager = createManagerWithMockedElements();
-    manager.openMenu = jest.fn();
-    manager.closeMenu = jest.fn();
-    manager.toggleMenu();
-    expect(manager.openMenu).toHaveBeenCalledTimes(1);
-    expect(manager.closeMenu).not.toHaveBeenCalled();
-  });
-
-  it('Manager#toggleMenu when open', function() {
-    var manager = createManagerWithMockedElements();
-    manager.isOpen = true;
-    manager.openMenu = jest.fn();
-    manager.closeMenu = jest.fn();
-    manager.toggleMenu();
-    expect(manager.openMenu).not.toHaveBeenCalled();
-    expect(manager.closeMenu).toHaveBeenCalledTimes(1);
-  });
-
-  it('Manager#handleSelection A', function() {
-    var mockOnSelection = jest.fn();
-    var manager = createManagerWithMockedElements({
-      onSelection: mockOnSelection
-    });
-    manager.closeMenu = jest.fn();
-    manager.handleSelection('foo', { bar: 1 });
-    expect(manager.closeMenu).toHaveBeenCalledTimes(1);
-    expect(manager.closeMenu.mock.calls[0]).toEqual([{ focusButton: true }]);
-    expect(mockOnSelection).toHaveBeenCalledTimes(1);
-    expect(mockOnSelection.mock.calls[0]).toEqual(['foo', { bar: 1 }]);
-  });
-
-  it('Manager#handleSelection B', function() {
-    var mockOnSelection = jest.fn();
-    var manager = createManagerWithMockedElements({
-      onSelection: mockOnSelection,
-      closeOnSelection: false
-    });
-    manager.closeMenu = jest.fn();
-    manager.handleSelection('foo', { bar: 1 });
-    expect(manager.closeMenu).not.toHaveBeenCalled();
-    expect(mockOnSelection).toHaveBeenCalledTimes(1);
-    expect(mockOnSelection.mock.calls[0]).toEqual(['foo', { bar: 1 }]);
-  });
-
-  it('Manager#handleMenuKey on closed menu', function() {
-    var escapeEvent = createMockKeyEvent('Escape');
-    var manager = createManagerWithMockedElements();
-    manager.closeMenu = jest.fn();
-
-    manager.handleMenuKey(escapeEvent);
-    expect(escapeEvent.preventDefault).not.toHaveBeenCalled();
-    expect(manager.closeMenu).not.toHaveBeenCalled();
-  });
-
-  it('Manager#handleMenuKey on open menu', function() {
-    var escapeEvent = createMockKeyEvent('Escape');
-    var manager = createManagerWithMockedElements();
-    manager.isOpen = true;
-    manager.closeMenu = jest.fn();
-
-    manager.handleMenuKey(escapeEvent);
-    expect(escapeEvent.preventDefault).toHaveBeenCalledTimes(1);
-    expect(manager.closeMenu).toHaveBeenCalledTimes(1);
-    expect(manager.closeMenu.mock.calls[0]).toEqual([{ focusButton: true }]);
-  });
-});
diff --git a/src-old/__tests__/helpers/MockWrapper.js b/src-old/__tests__/helpers/MockWrapper.js
deleted file mode 100644
index d795bb0..0000000
--- a/src-old/__tests__/helpers/MockWrapper.js
+++ /dev/null
@@ -1,24 +0,0 @@
-const React = require('react');
-const PropTypes = require('prop-types');
-const ManagerContext = require('../../ManagerContext');
-
-class MockWrapper extends React.Component {
-  static propTypes = {
-    mockManager: PropTypes.object.isRequired,
-  };
-
-  constructor(props) {
-    super(props);
-    this.manager = this.props.mockManager;
-  }
-
-  render() {
-    return React.createElement(
-      ManagerContext.Provider,
-      { value: this.props.mockManager },
-      React.createElement('div', null, this.props.children)
-    );
-  }
-}
-
-module.exports = MockWrapper;
diff --git a/src-old/__tests__/helpers/createMockKeyEvent.js b/src-old/__tests__/helpers/createMockKeyEvent.js
deleted file mode 100644
index cac0329..0000000
--- a/src-old/__tests__/helpers/createMockKeyEvent.js
+++ /dev/null
@@ -1,7 +0,0 @@
-module.exports = function(key, keyCode) {
-  return {
-    key: key,
-    keyCode: keyCode,
-    preventDefault: jest.fn(),
-  };
-};
diff --git a/src-old/__tests__/helpers/createMockManager.js b/src-old/__tests__/helpers/createMockManager.js
deleted file mode 100644
index 8371944..0000000
--- a/src-old/__tests__/helpers/createMockManager.js
+++ /dev/null
@@ -1,22 +0,0 @@
-module.exports = function() {
-  return {
-    isOpen: false,
-    toggleMenu: jest.fn(),
-    handleMenuKey: jest.fn(),
-    moveFocusDown: jest.fn(),
-    openMenu: jest.fn(),
-    handleKeyDown: jest.fn(),
-    handleClick: jest.fn(),
-    handleSelection: jest.fn(),
-    handleButtonNonArrowKey: jest.fn(),
-    focusItem: jest.fn(),
-    menuItems: [1, 2],
-    clearItems: jest.fn(),
-    currentFocus: -1,
-    addItem: jest.fn(),
-    options: {
-      closeOnBlur: true,
-      closeOnSelection: true
-    }
-  };
-}
diff --git a/src-old/__tests__/helpers/jest-setup.js b/src-old/__tests__/helpers/jest-setup.js
deleted file mode 100644
index 4891a26..0000000
--- a/src-old/__tests__/helpers/jest-setup.js
+++ /dev/null
@@ -1,5 +0,0 @@
-import './raf';
-import Enzyme from 'enzyme';
-import Adapter from 'enzyme-adapter-react-16';
-
-Enzyme.configure({ adapter: new Adapter() });
diff --git a/src-old/__tests__/helpers/raf.js b/src-old/__tests__/helpers/raf.js
deleted file mode 100644
index 7947f08..0000000
--- a/src-old/__tests__/helpers/raf.js
+++ /dev/null
@@ -1,3 +0,0 @@
-global.requestAnimationFrame = (callback) => {
-  setTimeout(callback, 0);
-};
diff --git a/src-old/createManager.js b/src-old/createManager.js
deleted file mode 100644
index 50d87aa..0000000
--- a/src-old/createManager.js
+++ /dev/null
@@ -1,173 +0,0 @@
-const createFocusGroup = require('focus-group');
-const externalStateControl = require('./externalStateControl');
-
-const focusGroupOptions = {
-  wrap: true,
-  stringSearch: true
-};
-
-const protoManager = {
-  init(options) {
-    this.updateOptions(options);
-
-    this.handleBlur = handleBlur.bind(this);
-    this.handleSelection = handleSelection.bind(this);
-    this.handleMenuKey = handleMenuKey.bind(this);
-
-    // "With focus on the drop-down menu, the Up and Down Arrow
-    // keys move focus within the menu items, "wrapping" at the top and bottom."
-    // "Typing a letter (printable character) key moves focus to the next
-    // instance of a visible node whose title begins with that printable letter."
-    //
-    // All of the above is handled by focus-group.
-    this.focusGroup = createFocusGroup(focusGroupOptions);
-
-    // These component references are added when the relevant components mount
-    this.button = null;
-    this.menu = null;
-
-    // State trackers
-    this.isOpen = false;
-  },
-
-  updateOptions(options) {
-    const oldOptions = this.options;
-
-    this.options = options || this.options || {};
-
-    if (typeof this.options.closeOnSelection === 'undefined') {
-      this.options.closeOnSelection = true;
-    }
-
-    if (typeof this.options.closeOnBlur === 'undefined') {
-      this.options.closeOnBlur = true;
-    }
-
-    if (this.options.id) {
-      externalStateControl.registerManager(this.options.id, this);
-    }
-
-    if (oldOptions && oldOptions.id && oldOptions.id !== this.options.id) {
-      externalStateControl.unregisterManager(this.options.id, this);
-    }
-
-  },
-
-  focusItem(index) {
-    this.focusGroup.focusNodeAtIndex(index);
-  },
-
-  addItem(item) {
-    this.focusGroup.addMember(item);
-  },
-
-  clearItems() {
-    this.focusGroup.clearMembers();
-  },
-
-  handleButtonNonArrowKey(event) {
-    this.focusGroup._handleUnboundKey(event);
-  },
-
-  destroy() {
-    this.button = null;
-    this.menu = null;
-    this.focusGroup.deactivate();
-    clearTimeout(this.blurTimer);
-    clearTimeout(this.moveFocusTimer);
-  },
-
-  update() {
-    this.menu.setState({ isOpen: this.isOpen });
-    this.button.setState({ menuOpen: this.isOpen });
-    this.options.onMenuToggle &&
-      this.options.onMenuToggle({ isOpen: this.isOpen });
-  },
-
-  openMenu(openOptions) {
-    if (this.isOpen) return;
-    openOptions = openOptions || {};
-    if (openOptions.focusMenu === undefined) {
-      openOptions.focusMenu = true;
-    }
-    this.isOpen = true;
-    this.update();
-    this.focusGroup.activate();
-    if (openOptions.focusMenu) {
-      const self = this;
-      this.moveFocusTimer = setTimeout(function() {
-        self.focusItem(0);
-      }, 0);
-    }
-  },
-
-  closeMenu(closeOptions) {
-    if (!this.isOpen) return;
-    closeOptions = closeOptions || {};
-    this.isOpen = false;
-    this.update();
-    if (closeOptions.focusButton) {
-      this.button.ref.current.focus();
-    }
-  },
-
-  toggleMenu(closeOptions, openOptions) {
-    closeOptions = closeOptions || {};
-    openOptions = openOptions || {};
-    if (this.isOpen) {
-      this.closeMenu(closeOptions);
-    } else {
-      this.openMenu(openOptions);
-    }
-  }
-};
-
-function handleBlur() {
-  const self = this;
-  self.blurTimer = setTimeout(function() {
-    if (!self.button) return;
-    const buttonNode = self.button.ref.current;
-    if (!buttonNode) return;
-    const activeEl = buttonNode.ownerDocument.activeElement;
-    if (buttonNode && activeEl === buttonNode) return;
-    const menuNode = self.menu.ref.current;
-    if (menuNode === activeEl) {
-      self.focusItem(0);
-      return;
-    }
-    if (menuNode && menuNode.contains(activeEl)) return;
-    if (self.isOpen) self.closeMenu({ focusButton: false });
-  }, 0);
-}
-
-function handleSelection(value, event) {
-  if (this.options.closeOnSelection) this.closeMenu({ focusButton: true });
-  if (this.options.onSelection) this.options.onSelection(value, event);
-}
-
-function handleMenuKey(event) {
-  if (this.isOpen) {
-    switch (event.key) {
-      // With focus on the drop-down menu, pressing Escape closes
-      // the menu and returns focus to the button.
-      case 'Escape':
-        event.preventDefault();
-        this.closeMenu({ focusButton: true });
-        break;
-      case 'Home':
-        event.preventDefault();
-        this.focusGroup.moveFocusToFirst();
-        break;
-      case 'End':
-        event.preventDefault();
-        this.focusGroup.moveFocusToLast();
-        break;
-    }
-  }
-}
-
-module.exports = function(options) {
-  const newManager = Object.create(protoManager);
-  newManager.init(options);
-  return newManager;
-};
diff --git a/src-old/externalStateControl.js b/src-old/externalStateControl.js
deleted file mode 100644
index 530384b..0000000
--- a/src-old/externalStateControl.js
+++ /dev/null
@@ -1,31 +0,0 @@
-const registeredManagers = {};
-
-const errorCommon =
-  'a menu outside a mounted Wrapper with an id, or a menu that does not exist';
-
-function registerManager(menuId, manager) {
-  registeredManagers[menuId] = manager;
-}
-
-function unregisterManager(menuId) {
-  delete registeredManagers[menuId];
-}
-
-function openMenu(menuId, openOptions) {
-  const manager = registeredManagers[menuId];
-  if (!manager) throw new Error('Cannot open ' + errorCommon);
-  manager.openMenu(openOptions);
-}
-
-function closeMenu(menuId, closeOptions) {
-  const manager = registeredManagers[menuId];
-  if (!manager) throw new Error('Cannot close ' + errorCommon);
-  manager.closeMenu(closeOptions);
-}
-
-module.exports = {
-  registerManager: registerManager,
-  unregisterManager: unregisterManager,
-  openMenu: openMenu,
-  closeMenu: closeMenu
-};
diff --git a/src-old/index.js b/src-old/index.js
deleted file mode 100644
index f925ed9..0000000
--- a/src-old/index.js
+++ /dev/null
@@ -1,10 +0,0 @@
-const externalStateControl = require('./externalStateControl');
-
-module.exports = {
-  Wrapper: require('./Wrapper'),
-  Button: require('./Button'),
-  Menu: require('./Menu'),
-  MenuItem: require('./MenuItem'),
-  openMenu: externalStateControl.openMenu,
-  closeMenu: externalStateControl.closeMenu
-};
diff --git a/src-old/propTypes.js b/src-old/propTypes.js
deleted file mode 100644
index 379da81..0000000
--- a/src-old/propTypes.js
+++ /dev/null
@@ -1,10 +0,0 @@
-import PropTypes, { ReactElement } from "prop-types";
-
-type RefType = ((instance: unknown) => void) | { current: ReactElement };
-
-export default {
-  refType: PropTypes.oneOfType([
-    PropTypes.func,
-    PropTypes.shape({ current: PropTypes.elementType })
-  ]) as PropTypes.Requireable<RefType>
-};
diff --git a/src-old/specialAssign.js b/src-old/specialAssign.js
deleted file mode 100644
index a8dd005..0000000
--- a/src-old/specialAssign.js
+++ /dev/null
@@ -1,9 +0,0 @@
-module.exports = function(a, b, reserved) {
-  reserved = reserved || {};
-  // This will get id, className, style, etc.
-  for (var x in b) {
-    if (!Object.prototype.hasOwnProperty.call(b,x)) continue;
-    if (reserved[x]) continue;
-    a[x] = b[x];
-  }
-};