diff --git a/.git-blame-ignore-revs b/.git-blame-ignore-revs
new file mode 100644
index 0000000..cee878d
--- /dev/null
+++ b/.git-blame-ignore-revs
@@ -0,0 +1,8 @@
+# Run this command to always ignore formatting commits in `git blame`
+# git config blame.ignoreRevsFile .git-blame-ignore-revs
+
+# Switch to nixpkgs-fmt formatting
+fd138d45e6a2cad89fead6e9f246ba282070d6b7
+
+# Switch to alejandra formatting
+046a88905ddfa7f9edc3291c310dbb985dee34f9