diff --git a/single-apps/insourcing/insourcing-kochsnowflake/.gitignore b/single-apps/insourcing/insourcing-kochsnowflake/.gitignore
new file mode 100644
index 00000000..da7512fd
--- /dev/null
+++ b/single-apps/insourcing/insourcing-kochsnowflake/.gitignore
@@ -0,0 +1,11 @@
+# Ignore Gradle project-specific cache directory
+.gradle
+
+# Ignore Gradle build output directory
+build
+
+#.idea
+/.idea/workspace.xml
+
+target
+/dependency-reduced-pom.xml
diff --git a/single-apps/insourcing/insourcing-sierpinskitriangle/.gitignore b/single-apps/insourcing/insourcing-sierpinskitriangle/.gitignore
new file mode 100644
index 00000000..da7512fd
--- /dev/null
+++ b/single-apps/insourcing/insourcing-sierpinskitriangle/.gitignore
@@ -0,0 +1,11 @@
+# Ignore Gradle project-specific cache directory
+.gradle
+
+# Ignore Gradle build output directory
+build
+
+#.idea
+/.idea/workspace.xml
+
+target
+/dependency-reduced-pom.xml
diff --git a/single-apps/insourcing/insourcing-turmite/.gitignore b/single-apps/insourcing/insourcing-turmite/.gitignore
new file mode 100644
index 00000000..da7512fd
--- /dev/null
+++ b/single-apps/insourcing/insourcing-turmite/.gitignore
@@ -0,0 +1,11 @@
+# Ignore Gradle project-specific cache directory
+.gradle
+
+# Ignore Gradle build output directory
+build
+
+#.idea
+/.idea/workspace.xml
+
+target
+/dependency-reduced-pom.xml