diff --git a/README.md b/README.md
index f1af0e2..2d42e1a 100644
--- a/README.md
+++ b/README.md
@@ -40,7 +40,7 @@ The whole [portfolio](https://matthiaskretschmann.com) is a React-based Single P
 
 ### Lighthouse score
 
-[![Lighthouse scores](https://lighthouse.now.sh/?perf=99&pwa=100&a11y=100&bp=100&seo=100)](https://travis-ci.com/kremalicious/portfolio)
+[![Lighthouse scores](https://lighthouse.now.sh/?perf=100&pwa=100&a11y=100&bp=100&seo=100)](https://travis-ci.com/kremalicious/portfolio)
 
 ### One data file to rule all pages
 
diff --git a/gatsby-browser.js b/gatsby-browser.js
index 8e155d4..cb8dd92 100644
--- a/gatsby-browser.js
+++ b/gatsby-browser.js
@@ -1,3 +1,5 @@
+import React from 'react'
+import AppProvider from './src/store/provider'
 import wrapPageElementWithTransition from './src/helpers/wrapPageElement'
 import './src/styles/global.scss'
 
@@ -6,5 +8,11 @@ if (typeof window !== 'undefined' && !window.IntersectionObserver) {
   import('intersection-observer')
 }
 
+// React Context in Browser
+// eslint-disable-next-line
+export const wrapRootElement = ({ element }) => {
+  return <AppProvider>{element}</AppProvider>
+}
+
 // Page Transitions & Layout
 export const wrapPageElement = wrapPageElementWithTransition
diff --git a/gatsby-ssr.js b/gatsby-ssr.js
index ba55016..1f8c9ea 100644
--- a/gatsby-ssr.js
+++ b/gatsby-ssr.js
@@ -1,4 +1,13 @@
+import React from 'react'
+import { renderToString } from 'react-dom/server'
+import AppProvider from './src/store/provider'
 import wrapPageElementWithTransition from './src/helpers/wrapPageElement'
 
+export const replaceRenderer = ({ bodyComponent, replaceBodyHTMLString }) => {
+  // React Context in SSR/build
+  const ConnectedBody = () => <AppProvider>{bodyComponent}</AppProvider>
+  replaceBodyHTMLString(renderToString(<ConnectedBody />))
+}
+
 // Page Transitions & Layout
 export const wrapPageElement = wrapPageElementWithTransition
diff --git a/src/components/molecules/Availability.jsx b/src/components/molecules/Availability.jsx
index e081b1c..2765447 100644
--- a/src/components/molecules/Availability.jsx
+++ b/src/components/molecules/Availability.jsx
@@ -1,7 +1,7 @@
 import React, { PureComponent } from 'react'
 import PropTypes from 'prop-types'
 import { StaticQuery, graphql } from 'gatsby'
-import posed, { PoseGroup } from 'react-pose'
+import posed from 'react-pose'
 import { fadeIn } from '../atoms/Transitions'
 import styles from './Availability.module.scss'
 
@@ -32,21 +32,19 @@ export default class Availability extends PureComponent {
 
           return (
             !this.props.hide && (
-              <PoseGroup animateOnMount={true}>
-                <Animation
-                  className={
-                    status
-                      ? `${styles.availability} ${styles.available}`
-                      : `${styles.availability}`
-                  }
-                >
-                  <p
-                    dangerouslySetInnerHTML={{
-                      __html: status ? available : unavailable
-                    }}
-                  />
-                </Animation>
-              </PoseGroup>
+              <Animation
+                className={
+                  status
+                    ? `${styles.availability} ${styles.available}`
+                    : `${styles.availability}`
+                }
+              >
+                <p
+                  dangerouslySetInnerHTML={{
+                    __html: status ? available : unavailable
+                  }}
+                />
+              </Animation>
             )
           )
         }}
diff --git a/src/components/molecules/LogoUnit.jsx b/src/components/molecules/LogoUnit.jsx
index 4ce408d..7816d64 100644
--- a/src/components/molecules/LogoUnit.jsx
+++ b/src/components/molecules/LogoUnit.jsx
@@ -1,7 +1,7 @@
 import React, { PureComponent } from 'react'
 import PropTypes from 'prop-types'
 import { StaticQuery, graphql } from 'gatsby'
-import posed, { PoseGroup } from 'react-pose'
+import posed from 'react-pose'
 import { moveInBottom } from '../atoms/Transitions'
 
 import Logo from '../svg/Logo'
@@ -48,19 +48,17 @@ export default class LogoUnit extends PureComponent {
           const { minimal } = this.state
 
           return (
-            <PoseGroup animateOnMount={true}>
-              <Animation>
-                <div className={minimal ? styles.minimal : styles.logounit}>
-                  <Logo className={styles.logounit__logo} />
-                  <h1 className={styles.logounit__title}>
-                    {title.toLowerCase()}
-                  </h1>
-                  <p className={styles.logounit__description}>
-                    {tagline.toLowerCase()}
-                  </p>
-                </div>
-              </Animation>
-            </PoseGroup>
+            <Animation>
+              <div className={minimal ? styles.minimal : styles.logounit}>
+                <Logo className={styles.logounit__logo} />
+                <h1 className={styles.logounit__title}>
+                  {title.toLowerCase()}
+                </h1>
+                <p className={styles.logounit__description}>
+                  {tagline.toLowerCase()}
+                </p>
+              </div>
+            </Animation>
           )
         }}
       />
diff --git a/src/components/molecules/Networks.jsx b/src/components/molecules/Networks.jsx
index e60e738..1dda022 100644
--- a/src/components/molecules/Networks.jsx
+++ b/src/components/molecules/Networks.jsx
@@ -1,7 +1,7 @@
 import React, { PureComponent } from 'react'
 import PropTypes from 'prop-types'
 import { StaticQuery, graphql } from 'gatsby'
-import posed, { PoseGroup } from 'react-pose'
+import posed from 'react-pose'
 import { moveInTop } from '../atoms/Transitions'
 
 import Email from '../svg/Email'
@@ -81,16 +81,14 @@ export default class Network extends PureComponent {
 
           return (
             !this.props.hide && (
-              <PoseGroup animateOnMount={true}>
-                <Animation className={this.state.classes}>
-                  {Object.keys(meta.social).map((key, i) => (
-                    <a className={styles.link} href={meta.social[key]} key={i}>
-                      <NetworkIcon title={key} className={icons.icon} />
-                      <span className={styles.title}>{key}</span>
-                    </a>
-                  ))}
-                </Animation>
-              </PoseGroup>
+              <Animation className={this.state.classes}>
+                {Object.keys(meta.social).map((key, i) => (
+                  <a className={styles.link} href={meta.social[key]} key={i}>
+                    <NetworkIcon title={key} className={icons.icon} />
+                    <span className={styles.title}>{key}</span>
+                  </a>
+                ))}
+              </Animation>
             )
           )
         }}
diff --git a/src/components/molecules/ThemeSwitch.jsx b/src/components/molecules/ThemeSwitch.jsx
index 79f723f..39fc764 100644
--- a/src/components/molecules/ThemeSwitch.jsx
+++ b/src/components/molecules/ThemeSwitch.jsx
@@ -1,7 +1,8 @@
 import React, { PureComponent, Fragment } from 'react'
 import PropTypes from 'prop-types'
 import Helmet from 'react-helmet'
-import posed, { PoseGroup } from 'react-pose'
+import posed from 'react-pose'
+import { Consumer } from '../../store/createContext'
 import { fadeIn } from '../atoms/Transitions'
 
 import Day from '../svg/Day'
@@ -22,66 +23,41 @@ ThemeToggle.propTypes = {
   dark: PropTypes.bool
 }
 
+const ThemeToggleInput = ({ dark, toggleDark }) => (
+  <input
+    onChange={toggleDark}
+    type="checkbox"
+    name="toggle"
+    value="toggle"
+    aria-describedby="toggle"
+    checked={dark}
+  />
+)
+
+ThemeToggleInput.propTypes = {
+  dark: PropTypes.bool,
+  toggleDark: PropTypes.func
+}
+
 export default class ThemeSwitch extends PureComponent {
-  state = { dark: null }
-
-  isDark = () => this.state.dark === true
-
-  darkLocalStorageMode = darkLocalStorage => {
-    if (darkLocalStorage === 'true') {
-      this.setState({ dark: true })
-    } else {
-      this.setState({ dark: false })
-    }
-  }
-
-  darkMode = now => {
-    if (!this.isDark() && (now >= 19 || now <= 7)) {
-      this.setState({ dark: true })
-    } else {
-      this.setState({ dark: null })
-    }
-  }
-
-  componentDidMount() {
-    const now = new Date().getHours()
-    const darkLocalStorage = localStorage.getItem('dark')
-
-    if (darkLocalStorage) {
-      this.darkLocalStorageMode(darkLocalStorage)
-    } else {
-      this.darkMode(now)
-    }
-  }
-
-  handleChange = event => {
-    this.setState({ dark: event.target.checked })
-    localStorage.setItem('dark', event.target.checked)
-  }
-
   render() {
     return (
-      <Fragment>
-        <Helmet>
-          <body className={this.isDark() ? 'dark' : null} />
-        </Helmet>
-        <PoseGroup animateOnMount={true}>
-          <Animation className={styles.themeSwitch}>
-            <label className={styles.checkbox}>
-              <span className={styles.label}>Toggle Night Mode</span>
-              <input
-                onChange={this.handleChange}
-                type="checkbox"
-                name="toggle"
-                value="toggle"
-                aria-describedby="toggle"
-                checked={this.isDark()}
-              />
-              <ThemeToggle dark={this.isDark()} />
-            </label>
-          </Animation>
-        </PoseGroup>
-      </Fragment>
+      <Consumer>
+        {({ dark, toggleDark }) => (
+          <Fragment>
+            <Helmet>
+              <body className={dark ? 'dark' : null} />
+            </Helmet>
+            <Animation className={styles.themeSwitch}>
+              <label className={styles.checkbox}>
+                <span className={styles.label}>Toggle Night Mode</span>
+                <ThemeToggleInput dark={dark} toggleDark={toggleDark} />
+                <ThemeToggle dark={dark} />
+              </label>
+            </Animation>
+          </Fragment>
+        )}
+      </Consumer>
     )
   }
 }
diff --git a/src/store/createContext.jsx b/src/store/createContext.jsx
new file mode 100644
index 0000000..25bffa4
--- /dev/null
+++ b/src/store/createContext.jsx
@@ -0,0 +1,5 @@
+import { createContext } from 'react'
+
+const { Provider, Consumer } = createContext()
+
+export { Provider, Consumer }
diff --git a/src/store/provider.jsx b/src/store/provider.jsx
new file mode 100644
index 0000000..f78d06a
--- /dev/null
+++ b/src/store/provider.jsx
@@ -0,0 +1,57 @@
+import React, { Component } from 'react'
+import PropTypes from 'prop-types'
+import { Provider } from './createContext'
+
+export default class AppProvider extends Component {
+  state = {
+    dark: false,
+    toggleDark: () => {
+      this.setState({ dark: !this.state.dark })
+
+      if (this.store) {
+        this.store.setItem('dark', !this.state.dark)
+      }
+    }
+  }
+
+  static propTypes = {
+    children: PropTypes.any.isRequired
+  }
+
+  store = typeof localStorage === 'undefined' ? null : localStorage
+
+  darkLocalStorageMode = darkLocalStorage => {
+    if (darkLocalStorage === 'true') {
+      this.setState({ dark: true })
+    } else {
+      this.setState({ dark: false })
+    }
+  }
+
+  darkMode = now => {
+    if (!this.state.dark && (now >= 19 || now <= 7)) {
+      this.setState({ dark: true })
+    } else {
+      this.setState({ dark: null })
+    }
+  }
+
+  checkDark = () => {
+    const now = new Date().getHours()
+    const darkLocalStorage = this.store.getItem('dark')
+
+    if (darkLocalStorage) {
+      this.darkLocalStorageMode(darkLocalStorage)
+    } else {
+      this.darkMode(now)
+    }
+  }
+
+  componentDidMount() {
+    this.checkDark()
+  }
+
+  render() {
+    return <Provider value={this.state}>{this.props.children}</Provider>
+  }
+}