diff --git a/.github/python/requirements.txt b/.github/python/requirements.txt
new file mode 100644
index 0000000..89ac246
--- /dev/null
+++ b/.github/python/requirements.txt
@@ -0,0 +1,6 @@
+-r ../../requirements.txt
+git+https://github.com/jakevdp/JSAnimation.git
+nbconvert==5.6.1
+# https://github.com/jupyter/nbgrader/issues/1373#issuecomment-702798246
+jupyter-client==6.1.12
+# https://github.com/jupyter/jupyter_client/issues/637
diff --git a/.github/texlive/requirements.txt b/.github/texlive/requirements.txt
new file mode 100644
index 0000000..211f133
--- /dev/null
+++ b/.github/texlive/requirements.txt
@@ -0,0 +1,8 @@
+pandoc
+texlive-base
+texlive-latex-base
+texlive-latex-recommended
+texlive-latex-extra
+texlive-fonts-recommended
+texlive-xetex
+liblapack-dev
diff --git a/.github/workflows/build_site.yml b/.github/workflows/build_site.yml
new file mode 100644
index 0000000..3a0a739
--- /dev/null
+++ b/.github/workflows/build_site.yml
@@ -0,0 +1,43 @@
+name: Build website
+on:
+  push:
+    branches:
+      - main
+  pull_request:
+    branches:
+      - main
+jobs:
+  Build-website:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v2
+      - uses: actions/cache@v2 # FIXME: add pip + latex + gems
+        with:
+          path: vendor/bundle
+          key: ${{ runner.os }}-gems-${{ hashFiles('**/Gemfile') }}
+          restore-keys: |
+            ${{ runner.os }}-gems-
+      - name: Install TeXLive
+        uses: DanySK/setup-texlive-action@0.1.1
+      - id: setup-python
+        name: Setup Python
+        uses: actions/setup-python@v2
+        with:
+          python-version: 3.8
+      - name: Install dependencies
+        uses: py-actions/py-dependency-install@v2
+        with:
+          path: ".github/python/requirements.txt"
+      - name: Building notes
+        run: make ready
+      - name: Builds website
+        uses: helaili/jekyll-action@v2
+        with:
+          target_branch: 'gh-pages'
+          build_only: true
+      - name: Build website and deploy
+        if: github.ref == 'refs/heads/main'
+        uses: helaili/jekyll-action@v2
+        with:
+          target_branch: 'gh-pages'
+          token: ${{ secrets.GITHUB_TOKEN }}
diff --git a/.travis.yml b/.travis.yml
deleted file mode 100644
index a8a5c2d..0000000
--- a/.travis.yml
+++ /dev/null
@@ -1,29 +0,0 @@
-dist: trusty
-language: python
-sudo: required
-python:
-- '3.6'
-cache: pip
-addons:
-  apt:
-    packages:
-    - pandoc
-    - texlive-latex-base
-    - texlive-latex-extra
-    - texlive-fonts-recommended
-    - texlive-latex-recommended
-    - texlive-generic-recommended
-    - texlive-xetex
-    - latex-xcolor
-    - liblapack-dev
-install:
-- pip install --upgrade pip setuptools wheel
-- pip install -r requirements.txt
-- pip install git+https://github.com/jakevdp/JSAnimation.git
-- gem install jekyll
-- gem install redcarpet
-script:
-- python -c "import matplotlib.pyplot"
-- make
-after_success:
- - ./travis/deploy.sh
diff --git a/Gemfile b/Gemfile
new file mode 100644
index 0000000..b73daec
--- /dev/null
+++ b/Gemfile
@@ -0,0 +1,4 @@
+source 'https://rubygems.org'
+
+gem 'jekyll', '~> 3.1.6'
+gem 'redcarpet', '~> 3.5.0'
diff --git a/Makefile b/Makefile
index a07d85c..f82e6de 100644
--- a/Makefile
+++ b/Makefile
@@ -47,7 +47,7 @@ indigo: indigo-jekyll-master
 
 .PHONY: ready
 
-ready: indigo $(HTMLS) notes.pdf notebooks.zip
+ready: indigo $(HTMLS) notebooks.zip
 
 _site: ready
 	jekyll build
diff --git a/_config.yml b/_config.yml
index 3c9c54f..351361e 100644
--- a/_config.yml
+++ b/_config.yml
@@ -22,3 +22,7 @@ baseurl: /doctoral-programming-intro
 markdown: redcarpet
 redcarpet:
   extensions: ["strikethrough","tables"]
+exclude:
+  - vendor/
+  - Gemfile
+  - Gemfile.lock
diff --git a/travis/deploy.sh b/travis/deploy.sh
deleted file mode 100755
index 98c14db..0000000
--- a/travis/deploy.sh
+++ /dev/null
@@ -1,26 +0,0 @@
-
-#!/bin/bash
-set -e
-
-if [[ $TRAVIS_PULL_REQUEST == false && $TRAVIS_BRANCH == 'master' ]]; then
-
-    openssl aes-256-cbc -K $encrypted_4014292b586d_key -iv $encrypted_4014292b586d_iv -in travis/secrets.tar.enc -out secrets.tar -d
-    tar -xvf secrets.tar
-    REPO=`git config remote.origin.url`
-    SSH_REPO=${REPO/https:\/\/github.com\//git@github.com:}
-    eval `ssh-agent -s`
-    chmod 600 deploy_key
-    ssh-add deploy_key
-
-    cd _site
-    git init
-    git checkout -b gh-pages
-    git config --global user.email "jamespjh@gmail.com"
-    git config --global user.name "Pushed by Travis CI"
-    git add .
-    git commit -m "Pushed by Travis"
-    git remote add origin $SSH_REPO
-    git push -f -u origin gh-pages
-
-fi
-
diff --git a/travis/secrets.tar.enc b/travis/secrets.tar.enc
deleted file mode 100644
index 4cf9c29..0000000
Binary files a/travis/secrets.tar.enc and /dev/null differ