diff --git a/Xmodmap/.Xmodmap.org b/Xmodmap/.Xmodmap.org
new file mode 100644
index 0000000..4c8b12e
--- /dev/null
+++ b/Xmodmap/.Xmodmap.org
@@ -0,0 +1,14 @@
+Turn the mouse into a left-handed one (switch the left and right
+buttons).
+
+#+BEGIN_SRC fundamental
+  pointer = 3 2 1
+#+END_SRC
+
+Turn the right Alt (AltGr) into a regular Alt.
+
+#+BEGIN_SRC fundamental
+  remove Mod5 = ISO_Level3_Shift
+  keycode 108 = Alt_L
+  add Mod1 = Alt_L
+#+END_SRC
diff --git a/Xmodmap/.gitignore b/Xmodmap/.gitignore
new file mode 100644
index 0000000..e7af67b
--- /dev/null
+++ b/Xmodmap/.gitignore
@@ -0,0 +1 @@
+.Xmodmap
diff --git a/Xmodmap/GNUmakefile b/Xmodmap/GNUmakefile
new file mode 100644
index 0000000..30c1d75
--- /dev/null
+++ b/Xmodmap/GNUmakefile
@@ -0,0 +1,6 @@
+include ../dotfiles.mk
+
+all: .Xmodmap
+
+.Xmodmap: .Xmodmap.org
+	$(call tangle,fundamental)