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/.gitignore b/.gitignore
index 87ba5dc..6600e2f 100644
--- a/.gitignore
+++ b/.gitignore
@@ -24,7 +24,6 @@ Thumbs.db
 *.npy
 *.pkl
 !artifacts/codebook/*.pkl
-*.npz
 
 # Temporary
 *.tmp
diff --git a/artifacts/spectral_codebook_v3.npz b/artifacts/spectral_codebook_v3.npz
new file mode 100644
index 0000000..bceb0a4
--- /dev/null
+++ b/artifacts/spectral_codebook_v3.npz
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:42b15cb611dce17d35011fda4489851f887c9f55905c4a4a4e3d52fe68da6311
+size 559768809