diff --git a/.github/dependabot.yml b/.github/dependabot.yml
new file mode 100644
index 0000000..b149019
--- /dev/null
+++ b/.github/dependabot.yml
@@ -0,0 +1,15 @@
+# Copyright (C) 2021 Sebastian Pipping <sebastian@pipping.org>
+# Licensed under the MIT license
+
+version: 2
+updates:
+
+  - package-ecosystem: "github-actions"
+    commit-message:
+      include: "scope"
+      prefix: "Actions"
+    directory: "/"
+    labels:
+      - "enhancement"
+    schedule:
+      interval: "weekly"
diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
new file mode 100644
index 0000000..a6b362e
--- /dev/null
+++ b/.github/workflows/build.yml
@@ -0,0 +1,28 @@
+# Copyright (C) 2021 Sebastian Pipping <sebastian@pipping.org>
+# Licensed under the MIT license
+
+name: Build on Linux using Apache Ant
+
+on:
+  pull_request:
+  push:
+  schedule:
+    - cron: '0 4 * * 5'  # Every Friday at 4am
+
+jobs:
+  build_and_test:
+    name: Build on Linux using Apache Ant
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v2.3.4
+
+      - name: Install dependencies
+        run: |-
+          sudo apt install --yes --no-install-recommends \
+              ant \
+              openjdk-11-jdk
+
+      - name: Build
+        run: |-
+          ant
+          git ls-files -o
diff --git a/src/com/muchsoft/util/Sys.java b/src/com/muchsoft/util/Sys.java
index e7c5922..e5d1754 100755
--- a/src/com/muchsoft/util/Sys.java
+++ b/src/com/muchsoft/util/Sys.java
@@ -29,7 +29,7 @@ package com.muchsoft.util;
  * <p><b>Version History:</b></p>
  * <dl>
  *   <dt> 2004-10-13
- *   <dd> Added a new package, com.muchsoft.util.mac, and a new class, {@link Mac}.
+ *   <dd> Added a new package, com.muchsoft.util.mac, and a new class, Mac.
  *   <dt> 2004-05-04
  *   <dd> isMacOSX() now matches <a href="http://developer.apple.com/technotes/tn2002/tn2110.html">http://developer.apple.com/technotes/tn2002/tn2110.html</a>
  *   <dt> 2003-12-02
diff --git a/src/ika/colororacle/ColorOracle.java b/src/ika/colororacle/ColorOracle.java
index eaa8ff5..8c16211 100755
--- a/src/ika/colororacle/ColorOracle.java
+++ b/src/ika/colororacle/ColorOracle.java
@@ -196,7 +196,7 @@ public class ColorOracle extends WindowAdapter implements KeyListener, FocusList
      * Loads a raster icon from the /ika/icons/ folder.
      *
      * @param name The name of the icon.
-     * @description A description of the icon that is attached to it.
+     * @param description A description of the icon that is attached to it.
      * @return An ImageIcon.
      *
      */
diff --git a/src/ika/colororacle/Simulator.java b/src/ika/colororacle/Simulator.java
index 9b4537d..b42f0d2 100755
--- a/src/ika/colororacle/Simulator.java
+++ b/src/ika/colororacle/Simulator.java
@@ -74,7 +74,7 @@ public class Simulator {
     /**
      * Filter an image and return a new image with the filtered result.
      *
-     * @normal The image with normal vision.
+     * @param normal The image with normal vision.
      * @return The image with simulated color vision impairment.
      */
     protected BufferedImage filter(BufferedImage normal) {