diff --git a/packages/gatsby-theme-ui-blog/gatsby-config.js b/packages/gatsby-theme-ui-blog/gatsby-config.js
index 1c0ce110e..ad7e2b075 100644
--- a/packages/gatsby-theme-ui-blog/gatsby-config.js
+++ b/packages/gatsby-theme-ui-blog/gatsby-config.js
@@ -4,6 +4,7 @@ module.exports = options => ({
       resolve: 'gatsby-theme-blog-core',
       options,
     },
+    'gatsby-plugin-typescript',
     'gatsby-theme-ui-layout',
     'gatsby-plugin-theme-ui',
   ],
diff --git a/packages/gatsby-theme-ui-blog/package.json b/packages/gatsby-theme-ui-blog/package.json
index 6aef1e711..02faa2db1 100644
--- a/packages/gatsby-theme-ui-blog/package.json
+++ b/packages/gatsby-theme-ui-blog/package.json
@@ -11,20 +11,23 @@
     "react-dom": "^16.8.0"
   },
   "devDependencies": {
+    "@types/react-helmet": "^5.0.15",
     "gatsby": "^2.13.73",
+    "gatsby-plugin-typescript": "^2.1.27",
     "react": "^16.9.0",
     "react-dom": "^16.9.0"
   },
   "dependencies": {
     "@emotion/core": "^10.0.0",
     "@mdx-js/react": "^1.0.0",
+    "@theme-ui/core": "^0.3.1",
+    "@theme-ui/mdx": "^0.3.0",
     "@theme-ui/preset-base": "^0.3.0",
     "gatsby-plugin-react-helmet": "^3.1.3",
     "gatsby-plugin-theme-ui": "^0.3.0",
     "gatsby-theme-blog-core": "^1.0.2",
     "gatsby-theme-ui-layout": "^0.3.0",
-    "react-helmet": "^5.2.1",
-    "theme-ui": "^0.3.1"
+    "react-helmet": "^5.2.1"
   },
   "repository": "system-ui/theme-ui",
   "license": "MIT"
diff --git a/packages/gatsby-theme-ui-blog/src/gatsby-plugin-theme-ui/index.js b/packages/gatsby-theme-ui-blog/src/gatsby-plugin-theme-ui/index.ts
similarity index 100%
rename from packages/gatsby-theme-ui-blog/src/gatsby-plugin-theme-ui/index.js
rename to packages/gatsby-theme-ui-blog/src/gatsby-plugin-theme-ui/index.ts
diff --git a/packages/gatsby-theme-ui-blog/src/gatsby-theme-blog-core/components/post.js b/packages/gatsby-theme-ui-blog/src/gatsby-theme-blog-core/components/post.ts
similarity index 54%
rename from packages/gatsby-theme-ui-blog/src/gatsby-theme-blog-core/components/post.js
rename to packages/gatsby-theme-ui-blog/src/gatsby-theme-blog-core/components/post.ts
index c6a5373d8..ba945f114 100644
--- a/packages/gatsby-theme-ui-blog/src/gatsby-theme-blog-core/components/post.js
+++ b/packages/gatsby-theme-ui-blog/src/gatsby-theme-blog-core/components/post.ts
@@ -2,7 +2,24 @@ import { jsx } from 'theme-ui'
 import { MDXRenderer } from 'gatsby-plugin-mdx'
 import Post from '../../post'
 
-export default props => {
+interface BlogPost {
+  id: string
+  excerpt: string
+  body: string
+  slug: string
+  title: string
+  date: string
+  tags: string[]
+  keywords: string[]
+}
+
+interface Props {
+  data: {
+    blogPost: BlogPost
+  }
+}
+
+export default (props: Props) => {
   const { body } = props.data.blogPost
   const children = jsx(MDXRenderer, { children: body })
 
diff --git a/packages/gatsby-theme-ui-blog/src/gatsby-theme-blog-core/components/posts.js b/packages/gatsby-theme-ui-blog/src/gatsby-theme-blog-core/components/posts.js
deleted file mode 100644
index b539255d8..000000000
--- a/packages/gatsby-theme-ui-blog/src/gatsby-theme-blog-core/components/posts.js
+++ /dev/null
@@ -1,11 +0,0 @@
-import { jsx } from 'theme-ui'
-import Posts from '../../posts'
-
-export default props => {
-  const posts = props.data.allBlogPost.edges.map(e => e.node)
-
-  return jsx(Posts, {
-    ...props,
-    posts,
-  })
-}
diff --git a/packages/gatsby-theme-ui-blog/src/gatsby-theme-blog-core/components/posts.ts b/packages/gatsby-theme-ui-blog/src/gatsby-theme-blog-core/components/posts.ts
new file mode 100644
index 000000000..6ff0b5d2b
--- /dev/null
+++ b/packages/gatsby-theme-ui-blog/src/gatsby-theme-blog-core/components/posts.ts
@@ -0,0 +1,32 @@
+import { jsx } from 'theme-ui'
+import Posts from '../../posts'
+
+export interface PostNode {
+  id: string
+  excerpt: string
+  slug: string
+  title: string
+  date: string
+  tags: string[]
+}
+
+interface AllBlogPost {
+  edges: {
+    node: PostNode
+  }[]
+}
+
+interface Props {
+  data: {
+    allBlogPost: AllBlogPost
+  }
+}
+
+export default (props: Props) => {
+  const posts = props.data.allBlogPost.edges.map(e => e.node)
+
+  return jsx(Posts, {
+    ...props,
+    posts,
+  })
+}
diff --git a/packages/gatsby-theme-ui-blog/src/gatsby-theme-ui-layout/layout.js b/packages/gatsby-theme-ui-blog/src/gatsby-theme-ui-layout/layout.ts
similarity index 100%
rename from packages/gatsby-theme-ui-blog/src/gatsby-theme-ui-layout/layout.js
rename to packages/gatsby-theme-ui-blog/src/gatsby-theme-ui-layout/layout.ts
diff --git a/packages/gatsby-theme-ui-blog/src/head.js b/packages/gatsby-theme-ui-blog/src/head.tsx
similarity index 55%
rename from packages/gatsby-theme-ui-blog/src/head.js
rename to packages/gatsby-theme-ui-blog/src/head.tsx
index e7838bc1e..630628c78 100644
--- a/packages/gatsby-theme-ui-blog/src/head.js
+++ b/packages/gatsby-theme-ui-blog/src/head.tsx
@@ -1,7 +1,18 @@
 import React from 'react'
 import { Helmet } from 'react-helmet'
 
-export default ({ lang = 'en-us', title, excerpt, ...props }) => (
+export interface HeadProps {
+  lang?: string
+  title?: string
+  excerpt?: string
+}
+
+const Head: React.FC<HeadProps> = ({
+  lang = 'en-us',
+  title,
+  excerpt,
+  ...props
+}) => (
   <Helmet
     {...props}
     htmlAttributes={{
@@ -11,3 +22,5 @@ export default ({ lang = 'en-us', title, excerpt, ...props }) => (
     {excerpt && <meta name="description" content={excerpt} />}
   </Helmet>
 )
+
+export default Head
diff --git a/packages/gatsby-theme-ui-blog/src/layout.js b/packages/gatsby-theme-ui-blog/src/layout.js
deleted file mode 100644
index aa3e0204a..000000000
--- a/packages/gatsby-theme-ui-blog/src/layout.js
+++ /dev/null
@@ -1,10 +0,0 @@
-import React from 'react'
-import { Link } from 'gatsby'
-import Head from './head'
-
-export default props => (
-  <>
-    <Head {...props} />
-    {props.children}
-  </>
-)
diff --git a/packages/gatsby-theme-ui-blog/src/layout.tsx b/packages/gatsby-theme-ui-blog/src/layout.tsx
new file mode 100644
index 000000000..b95917db1
--- /dev/null
+++ b/packages/gatsby-theme-ui-blog/src/layout.tsx
@@ -0,0 +1,11 @@
+import React from 'react'
+import Head, { HeadProps } from './head'
+
+const Layout: React.FC<HeadProps> = props => (
+  <>
+    <Head {...props} />
+    {props.children}
+  </>
+)
+
+export default Layout
diff --git a/packages/gatsby-theme-ui-blog/src/post.js b/packages/gatsby-theme-ui-blog/src/post.tsx
similarity index 56%
rename from packages/gatsby-theme-ui-blog/src/post.js
rename to packages/gatsby-theme-ui-blog/src/post.tsx
index 8dc74410b..44ecaed4c 100644
--- a/packages/gatsby-theme-ui-blog/src/post.js
+++ b/packages/gatsby-theme-ui-blog/src/post.tsx
@@ -1,8 +1,17 @@
 /** @jsx jsx */
-import { jsx, Styled } from 'theme-ui'
+import { jsx } from '@theme-ui/core'
+import { Styled } from '@theme-ui/mdx'
 import { Layout } from 'gatsby-theme-ui-layout'
 
-export default ({
+interface PostProps {
+  title?: string
+  date?: string
+  excerpt?: string
+  keywords?: string[]
+  tags?: string[]
+}
+
+const Post: React.FC<PostProps> = ({
   title,
   date,
   excerpt,
@@ -19,3 +28,5 @@ export default ({
     </Layout>
   </Styled.root>
 )
+
+export default Post
diff --git a/packages/gatsby-theme-ui-blog/src/posts.js b/packages/gatsby-theme-ui-blog/src/posts.tsx
similarity index 54%
rename from packages/gatsby-theme-ui-blog/src/posts.js
rename to packages/gatsby-theme-ui-blog/src/posts.tsx
index 3ac6cbd8c..582a3e9cb 100644
--- a/packages/gatsby-theme-ui-blog/src/posts.js
+++ b/packages/gatsby-theme-ui-blog/src/posts.tsx
@@ -1,9 +1,15 @@
 /** @jsx jsx */
-import { jsx, Styled } from 'theme-ui'
+import { jsx } from '@theme-ui/core'
+import { Styled } from '@theme-ui/mdx'
 import { Link } from 'gatsby'
 import { Layout } from 'gatsby-theme-ui-layout'
+import { PostNode } from './gatsby-theme-blog-core/components/posts'
 
-export default ({ posts, ...props }) => (
+interface PostsProps {
+  posts: PostNode[]
+}
+
+const Posts: React.FC<PostsProps> = ({ posts, ...props }) => (
   <Styled.root>
     <Layout {...props}>
       <ul>
@@ -16,3 +22,5 @@ export default ({ posts, ...props }) => (
     </Layout>
   </Styled.root>
 )
+
+export default Posts
diff --git a/packages/gatsby-theme-ui-blog/tsconfig.json b/packages/gatsby-theme-ui-blog/tsconfig.json
new file mode 100644
index 000000000..07f79174b
--- /dev/null
+++ b/packages/gatsby-theme-ui-blog/tsconfig.json
@@ -0,0 +1,3 @@
+{
+  "extends": "../core/tsconfig"
+}
diff --git a/yarn.lock b/yarn.lock
index 2ae0ddd2a..c1206ce1c 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -539,6 +539,14 @@
     "@babel/helper-plugin-utils" "^7.0.0"
     "@babel/plugin-syntax-nullish-coalescing-operator" "^7.7.4"
 
+"@babel/plugin-proposal-numeric-separator@^7.7.4":
+  version "7.8.3"
+  resolved "https://registry.yarnpkg.com/@babel/plugin-proposal-numeric-separator/-/plugin-proposal-numeric-separator-7.8.3.tgz#5d6769409699ec9b3b68684cd8116cedff93bad8"
+  integrity sha512-jWioO1s6R/R+wEHizfaScNsAx+xKgwTLNXSh7tTC4Usj3ItsPEhYkEpU4h+lpnBwq7NBVOJXfO6cRFYcX69JUQ==
+  dependencies:
+    "@babel/helper-plugin-utils" "^7.8.3"
+    "@babel/plugin-syntax-numeric-separator" "^7.8.3"
+
 "@babel/plugin-proposal-object-rest-spread@7.5.5":
   version "7.5.5"
   resolved "https://registry.yarnpkg.com/@babel/plugin-proposal-object-rest-spread/-/plugin-proposal-object-rest-spread-7.5.5.tgz#61939744f71ba76a3ae46b5eea18a54c16d22e58"
@@ -665,6 +673,13 @@
   dependencies:
     "@babel/helper-plugin-utils" "^7.0.0"
 
+"@babel/plugin-syntax-numeric-separator@^7.8.3":
+  version "7.8.3"
+  resolved "https://registry.yarnpkg.com/@babel/plugin-syntax-numeric-separator/-/plugin-syntax-numeric-separator-7.8.3.tgz#0e3fb63e09bea1b11e96467271c8308007e7c41f"
+  integrity sha512-H7dCMAdN83PcCmqmkHB5dtp+Xa9a6LKSvA2hiFBC/5alSHxM5VgWZXFqDi0YFe8XNGT6iCa+z4V4zSt/PdZ7Dw==
+  dependencies:
+    "@babel/helper-plugin-utils" "^7.8.3"
+
 "@babel/plugin-syntax-object-rest-spread@7.8.0":
   version "7.8.0"
   resolved "https://registry.yarnpkg.com/@babel/plugin-syntax-object-rest-spread/-/plugin-syntax-object-rest-spread-7.8.0.tgz#9b37d580d459682364d8602494c69145b394fd4c"
@@ -1323,7 +1338,7 @@
     "@babel/helper-plugin-utils" "^7.0.0"
     "@babel/plugin-transform-typescript" "^7.7.2"
 
-"@babel/preset-typescript@^7.8.3":
+"@babel/preset-typescript@^7.7.4", "@babel/preset-typescript@^7.8.3":
   version "7.8.3"
   resolved "https://registry.yarnpkg.com/@babel/preset-typescript/-/preset-typescript-7.8.3.tgz#90af8690121beecd9a75d0cc26c6be39d1595d13"
   integrity sha512-qee5LgPGui9zQ0jR1TeU5/fP9L+ovoArklEqY12ek8P/wV5ZeM/VYSQYwICeoT6FfpJTekG9Ilay5PhwsOpMHA==
@@ -2891,6 +2906,11 @@
   resolved "https://registry.yarnpkg.com/@mdx-js/util/-/util-1.5.5.tgz#6f88bcb847ebd0117fc81bcd26b83220062fd881"
   integrity sha512-IudQkyZuM8T1CrSX9r0ShPXCABjtEtyrV4lxQqhKAwFqw1aYpy/5LOZhitMLoJTybZPVdPotuh+zjqYy9ZOSbA==
 
+"@mikaelkristiansson/domready@^1.0.10":
+  version "1.0.10"
+  resolved "https://registry.yarnpkg.com/@mikaelkristiansson/domready/-/domready-1.0.10.tgz#f6d69866c0857664e70690d7a0bfedb72143adb5"
+  integrity sha512-6cDuZeKSCSJ1KvfEQ25Y8OXUjqDJZ+HgUs6dhASWbAX8fxVraTfPsSeRe2bN+4QJDsgUaXaMWBYfRomCr04GGg==
+
 "@mikaelkristiansson/domready@^1.0.9":
   version "1.0.9"
   resolved "https://registry.yarnpkg.com/@mikaelkristiansson/domready/-/domready-1.0.9.tgz#b2b85d8ac7bb2797e577050b61aeaf1b26fbd906"
@@ -3064,6 +3084,16 @@
     react-lifecycles-compat "^3.0.4"
     warning "^3.0.0"
 
+"@reach/router@^1.3.1":
+  version "1.3.1"
+  resolved "https://registry.yarnpkg.com/@reach/router/-/router-1.3.1.tgz#0a49f75fa9621323d6e21c803447bcfcde1713b2"
+  integrity sha512-Ov1j1J+pSgXliJHFL7XWhjyREwc6GxeWfgBTa5MMH5eRmYtHbPhaovba4xKo7aTVCg8fxkt2yDMNSpvwfUP+pA==
+  dependencies:
+    create-react-context "0.3.0"
+    invariant "^2.2.3"
+    prop-types "^15.6.1"
+    react-lifecycles-compat "^3.0.4"
+
 "@samverschueren/stream-to-observable@^0.3.0":
   version "0.3.0"
   resolved "https://registry.yarnpkg.com/@samverschueren/stream-to-observable/-/stream-to-observable-0.3.0.tgz#ecdf48d532c58ea477acfcab80348424f8d0662f"
@@ -3549,6 +3579,13 @@
   dependencies:
     "@types/react" "*"
 
+"@types/react-helmet@^5.0.15":
+  version "5.0.15"
+  resolved "https://registry.yarnpkg.com/@types/react-helmet/-/react-helmet-5.0.15.tgz#af0370617307e9f062c6aee0f1f5588224ce646e"
+  integrity sha512-CCjqvecDJTXRrHG8aTc2YECcQCl26za/q+NaBRvy/wtm0Uh38koM2dpv2bG1xJV4ckz3t1lm2/5KU6nt2s9BWg==
+  dependencies:
+    "@types/react" "*"
+
 "@types/react@*":
   version "16.9.16"
   resolved "https://registry.yarnpkg.com/@types/react/-/react-16.9.16.tgz#4f12515707148b1f53a8eaa4341dae5dfefb066d"
@@ -4915,6 +4952,11 @@ babel-plugin-remove-graphql-queries@^2.7.19:
   resolved "https://registry.yarnpkg.com/babel-plugin-remove-graphql-queries/-/babel-plugin-remove-graphql-queries-2.7.19.tgz#063b369cbf0123cbcebeffb75eab465d8f0b16c8"
   integrity sha512-/DS620ztyyrqrqjmz/KHDt++ktn+4RdvfDf5KCUmt6iJOglgNm7uHkE+snuvvL/xhNNuuPBLErc23Q0cR6MSiQ==
 
+babel-plugin-remove-graphql-queries@^2.7.23:
+  version "2.7.23"
+  resolved "https://registry.yarnpkg.com/babel-plugin-remove-graphql-queries/-/babel-plugin-remove-graphql-queries-2.7.23.tgz#7cecb19b6057eb4de92d147dfd4d51c885cc356a"
+  integrity sha512-SvWLivXtbeExS0eUPrRpg8EYiDPcOlzaO/vePcdmW2X8GBC1miezXS+RYPYyt4r9Z0Cg0ZQe58ggssF/8ym3rg==
+
 babel-plugin-syntax-async-functions@^6.8.0:
   version "6.13.0"
   resolved "https://registry.yarnpkg.com/babel-plugin-syntax-async-functions/-/babel-plugin-syntax-async-functions-6.13.0.tgz#cad9cad1191b5ad634bf30ae0872391e0647be95"
@@ -5414,6 +5456,25 @@ babel-preset-gatsby@^0.2.26:
     babel-plugin-macros "^2.8.0"
     babel-plugin-transform-react-remove-prop-types "^0.4.24"
 
+babel-preset-gatsby@^0.2.29:
+  version "0.2.29"
+  resolved "https://registry.yarnpkg.com/babel-preset-gatsby/-/babel-preset-gatsby-0.2.29.tgz#cf50a2ec0e6d44fd715b559bfd5481c4221cab5c"
+  integrity sha512-asJV/UMq7riYiY4ZhMi83Mbhwwtkvhp9gmmJgJJSJyAWw/tTgAmYan6Udpco3P4Kvd91lj+f8kzXJHT0G2sdwQ==
+  dependencies:
+    "@babel/plugin-proposal-class-properties" "^7.7.4"
+    "@babel/plugin-proposal-nullish-coalescing-operator" "^7.7.4"
+    "@babel/plugin-proposal-optional-chaining" "^7.7.5"
+    "@babel/plugin-syntax-dynamic-import" "^7.7.4"
+    "@babel/plugin-transform-runtime" "^7.7.6"
+    "@babel/plugin-transform-spread" "^7.7.4"
+    "@babel/preset-env" "^7.7.6"
+    "@babel/preset-react" "^7.7.4"
+    "@babel/runtime" "^7.7.6"
+    babel-plugin-dynamic-import-node "^2.3.0"
+    babel-plugin-macros "^2.8.0"
+    babel-plugin-transform-react-remove-prop-types "^0.4.24"
+    gatsby-core-utils "^1.0.28"
+
 babel-preset-jest@^24.9.0:
   version "24.9.0"
   resolved "https://registry.yarnpkg.com/babel-preset-jest/-/babel-preset-jest-24.9.0.tgz#192b521e2217fb1d1f67cf73f70c336650ad3cdc"
@@ -7734,6 +7795,14 @@ create-react-context@0.2.2:
     fbjs "^0.8.0"
     gud "^1.0.0"
 
+create-react-context@0.3.0:
+  version "0.3.0"
+  resolved "https://registry.yarnpkg.com/create-react-context/-/create-react-context-0.3.0.tgz#546dede9dc422def0d3fc2fe03afe0bc0f4f7d8c"
+  integrity sha512-dNldIoSuNSvlTJ7slIKC/ZFGKexBMBrrcc+TTe1NdmROnaASuLPvqpwj9v4XS4uXZ8+YPu0sNmShX2rXI5LNsw==
+  dependencies:
+    gud "^1.0.0"
+    warning "^4.0.3"
+
 create-react-context@^0.2.1, create-react-context@^0.2.2:
   version "0.2.3"
   resolved "https://registry.yarnpkg.com/create-react-context/-/create-react-context-0.2.3.tgz#9ec140a6914a22ef04b8b09b7771de89567cb6f3"
@@ -10786,6 +10855,54 @@ gatsby-cli@^2.8.19:
     ink "^2.6.0"
     ink-spinner "^3.0.1"
 
+gatsby-cli@^2.8.30:
+  version "2.8.30"
+  resolved "https://registry.yarnpkg.com/gatsby-cli/-/gatsby-cli-2.8.30.tgz#29655d05890d7c54b04d3fecd97446941e0c0507"
+  integrity sha512-dEGuvF91EwSzLwBV98NDihtn6e6uZedcPljlx9Mr7ZQLlOhGAVDcWR9KNq0Z1SWeRInwWc3cEdUJ6TUmPa308Q==
+  dependencies:
+    "@babel/code-frame" "^7.5.5"
+    "@babel/runtime" "^7.7.6"
+    "@hapi/joi" "^15.1.1"
+    better-opn "^1.0.0"
+    bluebird "^3.7.2"
+    chalk "^2.4.2"
+    clipboardy "^2.1.0"
+    common-tags "^1.8.0"
+    configstore "^5.0.0"
+    convert-hrtime "^3.0.0"
+    core-js "^2.6.11"
+    envinfo "^7.5.0"
+    execa "^3.4.0"
+    fs-exists-cached "^1.0.0"
+    fs-extra "^8.1.0"
+    gatsby-core-utils "^1.0.28"
+    gatsby-telemetry "^1.1.49"
+    hosted-git-info "^3.0.2"
+    is-valid-path "^0.1.1"
+    lodash "^4.17.15"
+    meant "^1.0.1"
+    node-fetch "^2.6.0"
+    object.entries "^1.1.0"
+    opentracing "^0.14.4"
+    pretty-error "^2.1.1"
+    progress "^2.0.3"
+    prompts "^2.3.0"
+    react "^16.8.0"
+    redux "^4.0.4"
+    resolve-cwd "^2.0.0"
+    semver "^6.3.0"
+    signal-exit "^3.0.2"
+    source-map "0.7.3"
+    stack-trace "^0.0.10"
+    strip-ansi "^5.2.0"
+    update-notifier "^3.0.1"
+    uuid "3.3.3"
+    yargs "^12.0.5"
+    yurnalist "^1.1.1"
+  optionalDependencies:
+    ink "^2.6.0"
+    ink-spinner "^3.0.1"
+
 gatsby-core-utils@^1.0.24, gatsby-core-utils@^1.0.28:
   version "1.0.28"
   resolved "https://registry.yarnpkg.com/gatsby-core-utils/-/gatsby-core-utils-1.0.28.tgz#aa66e49cdcc1892e7817a32fdd806cf5e16ea309"
@@ -10801,6 +10918,13 @@ gatsby-graphiql-explorer@^0.2.31:
   dependencies:
     "@babel/runtime" "^7.7.6"
 
+gatsby-graphiql-explorer@^0.2.34:
+  version "0.2.34"
+  resolved "https://registry.yarnpkg.com/gatsby-graphiql-explorer/-/gatsby-graphiql-explorer-0.2.34.tgz#ed3e8406e7f263687727717481ccee9e5b4cb83c"
+  integrity sha512-r3JW4NPC69kRV8VTlDYrR9E9ROyw3Po4qKB5C067fE0bRhtU3DTSSf6MT+C97XS+JqKEZAaub0unptB//gnaCw==
+  dependencies:
+    "@babel/runtime" "^7.7.6"
+
 gatsby-link@^2.2.27:
   version "2.2.27"
   resolved "https://registry.yarnpkg.com/gatsby-link/-/gatsby-link-2.2.27.tgz#d36aa62e9854ef3102ca85c2a6fa833943059303"
@@ -10810,6 +10934,15 @@ gatsby-link@^2.2.27:
     "@types/reach__router" "^1.2.6"
     prop-types "^15.7.2"
 
+gatsby-link@^2.2.29:
+  version "2.2.29"
+  resolved "https://registry.yarnpkg.com/gatsby-link/-/gatsby-link-2.2.29.tgz#adde4f8d548728282f375affffa34d2c10bc5327"
+  integrity sha512-Yl6CIseRSaF9oLgcaLc4e95al2IQ4fHxMjKQtKRZEH4sFk0BIcLaVfqPwwWBdUK0rGkyNXqNs5lATBWqmg1FwA==
+  dependencies:
+    "@babel/runtime" "^7.7.6"
+    "@types/reach__router" "^1.2.6"
+    prop-types "^15.7.2"
+
 gatsby-page-utils@^0.0.35:
   version "0.0.35"
   resolved "https://registry.yarnpkg.com/gatsby-page-utils/-/gatsby-page-utils-0.0.35.tgz#80ec1aea3078465be50d24b3fdfe9268238c100a"
@@ -10824,6 +10957,20 @@ gatsby-page-utils@^0.0.35:
     lodash "^4.17.15"
     micromatch "^3.1.10"
 
+gatsby-page-utils@^0.0.39:
+  version "0.0.39"
+  resolved "https://registry.yarnpkg.com/gatsby-page-utils/-/gatsby-page-utils-0.0.39.tgz#5d331b40488b984b95ded9a36470e77c46a9400e"
+  integrity sha512-lDrrenBnh5HR/9mgfhePPvCt2KueccbQu/KPYkBKlwz0hcZ/xl28cgit0Bj9Ijqx7XTMxBd2gtgvgB2QNd8jmA==
+  dependencies:
+    "@babel/runtime" "^7.7.6"
+    bluebird "^3.7.2"
+    chokidar "3.3.0"
+    fs-exists-cached "^1.0.0"
+    gatsby-core-utils "^1.0.28"
+    glob "^7.1.6"
+    lodash "^4.17.15"
+    micromatch "^3.1.10"
+
 gatsby-plugin-catch-links@^2.0.13:
   version "2.1.25"
   resolved "https://registry.yarnpkg.com/gatsby-plugin-catch-links/-/gatsby-plugin-catch-links-2.1.25.tgz#163332de7708317146239250f95dff16af748914"
@@ -10899,6 +11046,19 @@ gatsby-plugin-page-creator@^2.1.36:
     lodash "^4.17.15"
     micromatch "^3.1.10"
 
+gatsby-plugin-page-creator@^2.1.40:
+  version "2.1.40"
+  resolved "https://registry.yarnpkg.com/gatsby-plugin-page-creator/-/gatsby-plugin-page-creator-2.1.40.tgz#96c817781dfb1f191570c69d2e9af114a3cd23df"
+  integrity sha512-jwY8LTOOobrKUr1ph+/IHAHDuzjSrXsAu2YBqZg7wc/J6gre0YAgOU2yAxY34CadE34jieISO3FDIyHMii3vPg==
+  dependencies:
+    "@babel/runtime" "^7.7.6"
+    bluebird "^3.7.2"
+    fs-exists-cached "^1.0.0"
+    gatsby-page-utils "^0.0.39"
+    glob "^7.1.6"
+    lodash "^4.17.15"
+    micromatch "^3.1.10"
+
 gatsby-plugin-react-helmet@^3.0.12, gatsby-plugin-react-helmet@^3.1.3:
   version "3.1.22"
   resolved "https://registry.yarnpkg.com/gatsby-plugin-react-helmet/-/gatsby-plugin-react-helmet-3.1.22.tgz#f4c148dfe964af1e1364e6bcd9a4cd3226e8cd7a"
@@ -10931,6 +11091,19 @@ gatsby-plugin-sharp@^2.4.5:
     svgo "1.3.2"
     uuid "^3.3.3"
 
+gatsby-plugin-typescript@^2.1.27:
+  version "2.1.27"
+  resolved "https://registry.yarnpkg.com/gatsby-plugin-typescript/-/gatsby-plugin-typescript-2.1.27.tgz#1b19c7c79e73fa44eebebad4cf067d4dc4ea99c4"
+  integrity sha512-c1Iv5tDMR/+V0ylZU6lGHkLCMNfSF/K3/60TTO/HvvS0OqNgX9ccTfD9LAiPDQeGWNPdeMaQx3aYJNKrVKLS1Q==
+  dependencies:
+    "@babel/core" "^7.7.5"
+    "@babel/plugin-proposal-nullish-coalescing-operator" "^7.7.4"
+    "@babel/plugin-proposal-numeric-separator" "^7.7.4"
+    "@babel/plugin-proposal-optional-chaining" "^7.7.5"
+    "@babel/preset-typescript" "^7.7.4"
+    "@babel/runtime" "^7.7.6"
+    babel-plugin-remove-graphql-queries "^2.7.23"
+
 gatsby-react-router-scroll@^2.1.19:
   version "2.1.19"
   resolved "https://registry.yarnpkg.com/gatsby-react-router-scroll/-/gatsby-react-router-scroll-2.1.19.tgz#4bac8cb5aaba5e2ad6b589a3d289d39257c3b5da"
@@ -10940,6 +11113,15 @@ gatsby-react-router-scroll@^2.1.19:
     scroll-behavior "^0.9.10"
     warning "^3.0.0"
 
+gatsby-react-router-scroll@^2.1.21:
+  version "2.1.21"
+  resolved "https://registry.yarnpkg.com/gatsby-react-router-scroll/-/gatsby-react-router-scroll-2.1.21.tgz#bc4aeee424da034287b6fe64d6b08f47d6cb6881"
+  integrity sha512-aEjj8baFlWOfgU/HGiqxKHtfEtYMnU2qDWPxbYK07xxvXqk3reUu3cluCSaO0EqNUALwJkaz2QsYLzo9MszbeA==
+  dependencies:
+    "@babel/runtime" "^7.7.6"
+    scroll-behavior "^0.9.10"
+    warning "^3.0.0"
+
 gatsby-remark-copy-linked-files@^2.1.37:
   version "2.1.37"
   resolved "https://registry.yarnpkg.com/gatsby-remark-copy-linked-files/-/gatsby-remark-copy-linked-files-2.1.37.tgz#5a1e80ee20512d8b4de8aa0f7d44aefa84e66115"
@@ -11034,6 +11216,29 @@ gatsby-telemetry@^1.1.44:
     stack-utils "1.0.2"
     uuid "3.3.3"
 
+gatsby-telemetry@^1.1.49:
+  version "1.1.49"
+  resolved "https://registry.yarnpkg.com/gatsby-telemetry/-/gatsby-telemetry-1.1.49.tgz#f577738fe03a4aeef4bb5b481969e91fd52ca22d"
+  integrity sha512-NLT843FVp3pt1gjJ/vsclgw6h7pIKDF9l8sWBFiIrJUjiwGqCVC+emylbuK8MFE8Js989SP40piqvgo+orEl3g==
+  dependencies:
+    "@babel/code-frame" "^7.5.5"
+    "@babel/runtime" "^7.7.6"
+    bluebird "^3.7.2"
+    boxen "^4.2.0"
+    configstore "^5.0.0"
+    envinfo "^7.5.0"
+    fs-extra "^8.1.0"
+    gatsby-core-utils "^1.0.28"
+    git-up "4.0.1"
+    is-docker "2.0.0"
+    lodash "^4.17.15"
+    node-fetch "2.6.0"
+    resolve-cwd "^2.0.0"
+    source-map "^0.7.3"
+    stack-trace "^0.0.10"
+    stack-utils "1.0.2"
+    uuid "3.3.3"
+
 gatsby-theme-blog-core@^1.0.2:
   version "1.0.70"
   resolved "https://registry.yarnpkg.com/gatsby-theme-blog-core/-/gatsby-theme-blog-core-1.0.70.tgz#733157487f4c1b61f0b367f96417a30e859aa875"
@@ -11063,6 +11268,144 @@ gatsby-transformer-sharp@^2.3.14:
     semver "^5.7.1"
     sharp "^0.23.4"
 
+gatsby@*:
+  version "2.19.19"
+  resolved "https://registry.yarnpkg.com/gatsby/-/gatsby-2.19.19.tgz#8d4aa54e8c8da9cb38c5c7a15cfa358aec496f65"
+  integrity sha512-Is2s9qJ5p9fSzwhAf2LpKcv5l3/03Le3ZMJiU4ZOOauFhzLbsEIWK/Fu90GwnC8T7t9iWH3myI9NGh3a9+6cAQ==
+  dependencies:
+    "@babel/code-frame" "^7.5.5"
+    "@babel/core" "^7.7.5"
+    "@babel/parser" "^7.7.5"
+    "@babel/polyfill" "^7.7.0"
+    "@babel/runtime" "^7.7.6"
+    "@babel/traverse" "^7.7.4"
+    "@hapi/joi" "^15.1.1"
+    "@mikaelkristiansson/domready" "^1.0.10"
+    "@pieh/friendly-errors-webpack-plugin" "1.7.0-chalk-2"
+    "@reach/router" "^1.3.1"
+    "@typescript-eslint/eslint-plugin" "^2.11.0"
+    "@typescript-eslint/parser" "^2.11.0"
+    address "1.1.2"
+    autoprefixer "^9.7.3"
+    axios "^0.19.0"
+    babel-core "7.0.0-bridge.0"
+    babel-eslint "^10.0.3"
+    babel-loader "^8.0.6"
+    babel-plugin-add-module-exports "^0.3.3"
+    babel-plugin-dynamic-import-node "^2.3.0"
+    babel-plugin-remove-graphql-queries "^2.7.23"
+    babel-preset-gatsby "^0.2.29"
+    better-opn "1.0.0"
+    better-queue "^3.8.10"
+    bluebird "^3.7.2"
+    browserslist "3.2.8"
+    cache-manager "^2.10.1"
+    cache-manager-fs-hash "^0.0.7"
+    chalk "^2.4.2"
+    chokidar "3.3.0"
+    common-tags "^1.8.0"
+    compression "^1.7.4"
+    convert-hrtime "^3.0.0"
+    copyfiles "^2.1.1"
+    core-js "^2.6.11"
+    cors "^2.8.5"
+    css-loader "^1.0.1"
+    debug "^3.2.6"
+    del "^5.1.0"
+    detect-port "^1.3.0"
+    devcert-san "^0.3.3"
+    dotenv "^8.2.0"
+    eslint "^6.7.2"
+    eslint-config-react-app "^5.1.0"
+    eslint-loader "^2.2.1"
+    eslint-plugin-flowtype "^3.13.0"
+    eslint-plugin-graphql "^3.1.0"
+    eslint-plugin-import "^2.19.1"
+    eslint-plugin-jsx-a11y "^6.2.3"
+    eslint-plugin-react "^7.17.0"
+    eslint-plugin-react-hooks "^1.7.0"
+    event-source-polyfill "^1.0.11"
+    express "^4.17.1"
+    express-graphql "^0.9.0"
+    fast-levenshtein "^2.0.6"
+    file-loader "^1.1.11"
+    flat "^4.1.0"
+    fs-exists-cached "1.0.0"
+    fs-extra "^8.1.0"
+    gatsby-cli "^2.8.30"
+    gatsby-core-utils "^1.0.28"
+    gatsby-graphiql-explorer "^0.2.34"
+    gatsby-link "^2.2.29"
+    gatsby-plugin-page-creator "^2.1.40"
+    gatsby-react-router-scroll "^2.1.21"
+    gatsby-telemetry "^1.1.49"
+    glob "^7.1.6"
+    got "8.3.2"
+    graphql "^14.5.8"
+    graphql-compose "^6.3.7"
+    graphql-playground-middleware-express "^1.7.12"
+    hasha "^5.1.0"
+    invariant "^2.2.4"
+    is-relative "^1.0.0"
+    is-relative-url "^3.0.0"
+    is-wsl "^2.1.1"
+    jest-worker "^24.9.0"
+    json-loader "^0.5.7"
+    json-stringify-safe "^5.0.1"
+    lodash "^4.17.15"
+    lokijs "^1.5.8"
+    md5 "^2.2.1"
+    md5-file "^3.2.3"
+    micromatch "^3.1.10"
+    mime "^2.4.4"
+    mini-css-extract-plugin "^0.8.0"
+    mitt "^1.2.0"
+    mkdirp "^0.5.1"
+    moment "^2.24.0"
+    name-all-modules-plugin "^1.0.1"
+    normalize-path "^2.1.1"
+    null-loader "^0.1.1"
+    opentracing "^0.14.4"
+    optimize-css-assets-webpack-plugin "^5.0.3"
+    p-defer "^3.0.0"
+    parseurl "^1.3.3"
+    physical-cpu-count "^2.0.0"
+    pnp-webpack-plugin "^1.5.0"
+    postcss-flexbugs-fixes "^3.3.1"
+    postcss-loader "^2.1.6"
+    prompts "^2.3.0"
+    prop-types "^15.7.2"
+    raw-loader "^0.5.1"
+    react-dev-utils "^4.2.3"
+    react-error-overlay "^3.0.0"
+    react-hot-loader "^4.12.18"
+    redux "^4.0.4"
+    redux-thunk "^2.3.0"
+    semver "^5.7.1"
+    shallow-compare "^1.2.2"
+    sift "^5.1.0"
+    signal-exit "^3.0.2"
+    slugify "^1.3.6"
+    socket.io "^2.3.0"
+    stack-trace "^0.0.10"
+    string-similarity "^1.2.2"
+    style-loader "^0.23.1"
+    terser-webpack-plugin "^1.4.2"
+    "true-case-path" "^2.2.1"
+    type-of "^2.0.1"
+    url-loader "^1.1.2"
+    util.promisify "^1.0.0"
+    uuid "^3.3.3"
+    v8-compile-cache "^1.1.2"
+    webpack "~4.41.2"
+    webpack-dev-middleware "^3.7.2"
+    webpack-dev-server "^3.9.0"
+    webpack-hot-middleware "^2.25.0"
+    webpack-merge "^4.2.2"
+    webpack-stats-plugin "^0.3.0"
+    xstate "^4.7.2"
+    yaml-loader "^0.5.0"
+
 gatsby@^2.13.64, gatsby@^2.13.73, gatsby@^2.3.6, gatsby@^2.6.3:
   version "2.18.12"
   resolved "https://registry.yarnpkg.com/gatsby/-/gatsby-2.18.12.tgz#caae4482aab2e30b75b30a0e96b7eb1dd21e6f42"
@@ -12054,6 +12397,14 @@ hash.js@^1.0.0, hash.js@^1.0.3:
     inherits "^2.0.3"
     minimalistic-assert "^1.0.1"
 
+hasha@^5.1.0:
+  version "5.2.0"
+  resolved "https://registry.yarnpkg.com/hasha/-/hasha-5.2.0.tgz#33094d1f69c40a4a6ac7be53d5fe3ff95a269e0c"
+  integrity sha512-2W+jKdQbAdSIrggA8Q35Br8qKadTrqCTC8+XZvBWepKDK6m9XkX6Iz1a2yh2KP01kzAR/dpuMeUnocoLYDcskw==
+  dependencies:
+    is-stream "^2.0.0"
+    type-fest "^0.8.0"
+
 hast-to-hyperscript@^7.0.0:
   version "7.0.4"
   resolved "https://registry.yarnpkg.com/hast-to-hyperscript/-/hast-to-hyperscript-7.0.4.tgz#7c4c037d9a8ea19b0a3fdb676a26448ad922353d"
@@ -17046,6 +17397,11 @@ p-defer@^1.0.0:
   resolved "https://registry.yarnpkg.com/p-defer/-/p-defer-1.0.0.tgz#9f6eb182f6c9aa8cd743004a7d4f96b196b0fb0c"
   integrity sha1-n26xgvbJqozXQwBKfU+WsZaw+ww=
 
+p-defer@^3.0.0:
+  version "3.0.0"
+  resolved "https://registry.yarnpkg.com/p-defer/-/p-defer-3.0.0.tgz#d1dceb4ee9b2b604b1d94ffec83760175d4e6f83"
+  integrity sha512-ugZxsxmtTln604yeYd29EGrNhazN2lywetzpKhfmQjW/VJmhpDmWbiX+h0zL8V91R0UXkhb3KtPmyq9PZw3aYw==
+
 p-each-series@^1.0.0:
   version "1.0.0"
   resolved "https://registry.yarnpkg.com/p-each-series/-/p-each-series-1.0.0.tgz#930f3d12dd1f50e7434457a22cd6f04ac6ad7f71"
@@ -19575,6 +19931,16 @@ react-dev-utils@^4.2.3:
     strip-ansi "3.0.1"
     text-table "0.2.0"
 
+react-dom@*, react-dom@^16.8.6, react-dom@^16.9.0:
+  version "16.12.0"
+  resolved "https://registry.yarnpkg.com/react-dom/-/react-dom-16.12.0.tgz#0da4b714b8d13c2038c9396b54a92baea633fe11"
+  integrity sha512-LMxFfAGrcS3kETtQaCkTKjMiifahaMySFDn71fZUNpPHZQEzmk/GiAeIT8JSOrHB23fnuCOMruL2a8NYlw+8Gw==
+  dependencies:
+    loose-envify "^1.1.0"
+    object-assign "^4.1.1"
+    prop-types "^15.6.2"
+    scheduler "^0.18.0"
+
 react-dom@^15.6.1:
   version "15.6.2"
   resolved "https://registry.yarnpkg.com/react-dom/-/react-dom-15.6.2.tgz#41cfadf693b757faf2708443a1d1fd5a02bef730"
@@ -19595,16 +19961,6 @@ react-dom@^16.8.4:
     prop-types "^15.6.2"
     scheduler "^0.16.2"
 
-react-dom@^16.8.6, react-dom@^16.9.0:
-  version "16.12.0"
-  resolved "https://registry.yarnpkg.com/react-dom/-/react-dom-16.12.0.tgz#0da4b714b8d13c2038c9396b54a92baea633fe11"
-  integrity sha512-LMxFfAGrcS3kETtQaCkTKjMiifahaMySFDn71fZUNpPHZQEzmk/GiAeIT8JSOrHB23fnuCOMruL2a8NYlw+8Gw==
-  dependencies:
-    loose-envify "^1.1.0"
-    object-assign "^4.1.1"
-    prop-types "^15.6.2"
-    scheduler "^0.18.0"
-
 react-error-overlay@5.1.6:
   version "5.1.6"
   resolved "https://registry.yarnpkg.com/react-error-overlay/-/react-error-overlay-5.1.6.tgz#0cd73407c5d141f9638ae1e0c63e7b2bf7e9929d"
@@ -19705,6 +20061,15 @@ react-test-renderer@^16.8.6:
     react-is "^16.8.6"
     scheduler "^0.18.0"
 
+react@*, react@^16.11.0, react@^16.12.0, react@^16.8.0, react@^16.8.4, react@^16.8.6, react@^16.9.0:
+  version "16.12.0"
+  resolved "https://registry.yarnpkg.com/react/-/react-16.12.0.tgz#0c0a9c6a142429e3614834d5a778e18aa78a0b83"
+  integrity sha512-fglqy3k5E+81pA8s+7K0/T3DBCF0ZDOher1elBFzF7O6arXJgzyu/FW+COxFvAWXJoJN9KIZbT2LXlukwphYTA==
+  dependencies:
+    loose-envify "^1.1.0"
+    object-assign "^4.1.1"
+    prop-types "^15.6.2"
+
 react@^15.6.1:
   version "15.6.2"
   resolved "https://registry.yarnpkg.com/react/-/react-15.6.2.tgz#dba0434ab439cfe82f108f0f511663908179aa72"
@@ -19716,15 +20081,6 @@ react@^15.6.1:
     object-assign "^4.1.0"
     prop-types "^15.5.10"
 
-react@^16.11.0, react@^16.12.0, react@^16.8.4, react@^16.8.6, react@^16.9.0:
-  version "16.12.0"
-  resolved "https://registry.yarnpkg.com/react/-/react-16.12.0.tgz#0c0a9c6a142429e3614834d5a778e18aa78a0b83"
-  integrity sha512-fglqy3k5E+81pA8s+7K0/T3DBCF0ZDOher1elBFzF7O6arXJgzyu/FW+COxFvAWXJoJN9KIZbT2LXlukwphYTA==
-  dependencies:
-    loose-envify "^1.1.0"
-    object-assign "^4.1.1"
-    prop-types "^15.6.2"
-
 reactcss@^1.2.0:
   version "1.2.3"
   resolved "https://registry.yarnpkg.com/reactcss/-/reactcss-1.2.3.tgz#c00013875e557b1cf0dfd9a368a1c3dab3b548dd"
@@ -23392,7 +23748,7 @@ type-fest@^0.3.0:
   resolved "https://registry.yarnpkg.com/type-fest/-/type-fest-0.3.1.tgz#63d00d204e059474fe5e1b7c011112bbd1dc29e1"
   integrity sha512-cUGJnCdr4STbePCgqNFbpVNCepa+kAVohJs1sLhxzdH+gnEoOd8VhbYa7pD3zZYGiURWM2xzEII3fQcRizDkYQ==
 
-type-fest@^0.8.1:
+type-fest@^0.8.0, type-fest@^0.8.1:
   version "0.8.1"
   resolved "https://registry.yarnpkg.com/type-fest/-/type-fest-0.8.1.tgz#09e249ebde851d3b1e48d27c105444667f17b83d"
   integrity sha512-4dbzIzqvjtgiM5rw1k5rEHtBANKmdudhGyBEajN01fEyhaAIhsoKNy6y7+IN93IfpFtwY9iqi7kD+xwKhQsNJA==
@@ -24512,6 +24868,13 @@ warning@^3.0.0:
   dependencies:
     loose-envify "^1.0.0"
 
+warning@^4.0.3:
+  version "4.0.3"
+  resolved "https://registry.yarnpkg.com/warning/-/warning-4.0.3.tgz#16e9e077eb8a86d6af7d64aa1e05fd85b4678ca3"
+  integrity sha512-rpJyN222KWIvHJ/F53XSZv0Zl/accqHR8et1kpaMTD/fLCRxtV8iX8czMzY7sVZupTI3zcUTg8eycS2kNF9l6w==
+  dependencies:
+    loose-envify "^1.0.0"
+
 watchpack@2.0.0-beta.5:
   version "2.0.0-beta.5"
   resolved "https://registry.yarnpkg.com/watchpack/-/watchpack-2.0.0-beta.5.tgz#c005db39570d81d9d34334870abc0f548901b880"