diff --git a/.arch-inventory b/.arch-inventory
new file mode 100644
index 00000000000..3733b7ed6e3
--- /dev/null
+++ b/.arch-inventory
@@ -0,0 +1,3 @@
+precious ^(config\.status)$
+
+# arch-tag: 6eeeaa4e-cc7e-4b22-b3d7-1089e155da14
diff --git a/etc/.arch-inventory b/etc/.arch-inventory
new file mode 100644
index 00000000000..2637a2d3d8e
--- /dev/null
+++ b/etc/.arch-inventory
@@ -0,0 +1,4 @@
+# Unlike most emacs dirs, etc has a simple non-autoconf-generated makefile
+source ^(Makefile)$
+
+# arch-tag: 5a1d62e0-593a-48cd-8743-8d45dc58dfae
diff --git a/src/.arch-inventory b/src/.arch-inventory
new file mode 100644
index 00000000000..9f6d601a788
--- /dev/null
+++ b/src/.arch-inventory
@@ -0,0 +1,3 @@
+precious ^(config\.stamp|config\.h|epaths\.h)$
+
+# arch-tag: 277cc7ae-b3f5-44af-abf1-84c073164543