diff --git a/.gitignore b/.gitignore
new file mode 100644
index 00000000..765bfe6e
--- /dev/null
+++ b/.gitignore
@@ -0,0 +1,15 @@
+# OS generated files #
+######################
+.DS_Store
+.DS_Store?
+._*
+.Spotlight-V100
+.Trashes
+ehthumbs.db
+Thumbs.db
+
+# RetroDECK specific files #
+############################
+.flatpak-builder/
+retrodeck-flatpak-cooker/
+retrodeck-flatpak/