diff --git a/.gitattributes b/.gitattributes
new file mode 100644
index 0000000..022809c
--- /dev/null
+++ b/.gitattributes
@@ -0,0 +1 @@
+*.npz filter=lfs diff=lfs merge=lfs -text
diff --git a/devenv.nix b/devenv.nix
index c78df6d..233fdb2 100644
--- a/devenv.nix
+++ b/devenv.nix
@@ -9,6 +9,7 @@
     act
     cargo-bump
     git
+    git-lfs
     pre-commit
     ruff
   ];