diff --git a/.github/workflows/check.yml b/.github/workflows/check.yml
new file mode 100644
index 0000000..cbee2ef
--- /dev/null
+++ b/.github/workflows/check.yml
@@ -0,0 +1,72 @@
+on:
+  push:
+    branches:
+      - master
+  pull_request:
+  workflow_dispatch:
+concurrency:
+  group: ${{ github.ref }}
+  cancel-in-progress: true
+jobs:
+  test-pdflatex-linux-windows:
+    strategy:
+      fail-fast: false
+      matrix:
+        os: [ubuntu-latest, macos-latest]
+        ruby: [ '3.1', '3.2', '3.3' ]
+    name: "${{ matrix.os }} / ruby ${{ matrix.ruby }}"
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+      - uses: ruby/setup-ruby@v1
+        with:
+          ruby-version: ${{ matrix.ruby }}
+          bundler-cache: true
+      - name: Setup dependencies
+        run: |
+          bundle update --bundler
+          bundle install
+      - name: Install TeX Live
+        uses: zauguin/install-texlive@v3
+        with:
+          packages: >
+            latex-bin scheme-basic
+      - name: ltx2any
+        run: |
+          ruby ltx2any.rb test/test.tex
+  test-pdflatex-win:
+    strategy:
+      fail-fast: false
+      matrix:
+        ruby: [ '3.1', '3.2', '3.3' ]
+    name: "windows-latest / ruby ${{ matrix.ruby }}"
+    runs-on: windows-latest
+    steps:
+      - uses: actions/checkout@v4
+      - uses: ruby/setup-ruby@v1
+        with:
+          ruby-version: ${{ matrix.ruby }}
+          bundler-cache: true
+      - name: Setup dependencies
+        run: |
+          bundle update --bundler
+          bundle install
+      - name: Install MiKTeX
+        run: |
+          choco install miktex --no-progress
+          echo "C:\Program Files\MiKTeX\miktex\bin\x64" | Out-File -FilePath $env:GITHUB_PATH -Encoding utf8
+      - name: Configure MiKTeX
+        run: |
+          initexmf --admin --set-config-value=[MPM]AutoInstall=1
+          miktex --admin packages update-package-database
+          miktex --admin packages update
+          miktex packages update
+          miktex --admin packages install cm-super
+          miktex --admin fndb refresh
+          initexmf --admin --update-fndb
+          initexmf --admin --mklinks --force
+          updmap --admin
+          initexmf --report > miktex-report.txt
+      - name: ltx2any
+        run: |
+          ruby ltx2any.rb test/test.tex
diff --git a/.gitignore b/.gitignore
index 9f11b75..0ee37a4 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1 +1,4 @@
 .idea/
+test_tmp
+test.log.md
+test.pdf
diff --git a/README.md b/README.md
index 1097216..25c9b64 100644
--- a/README.md
+++ b/README.md
@@ -32,7 +32,7 @@ bug-free or reliable. Take care!
 
 For using ltx2any without any bells and whistles, you should have
 
- * Ruby 2.3.0 or higher and
+ * Ruby 3.1 or higher, and
  * LaTeX and friends.
 
 Any of the major (La)TeX distributions should provide the binaries you need.
diff --git a/test/Texlivefile b/test/Texlivefile
new file mode 100644
index 0000000..e69de29
diff --git a/test/test.tex b/test/test.tex
new file mode 100644
index 0000000..7474afd
--- /dev/null
+++ b/test/test.tex
@@ -0,0 +1,5 @@
+\documentclass{article}
+
+\begin{document}
+Hello world.
+\end{document}