diff --git a/.gitignore b/.gitignore
index 97d5dbd..641a040 100644
--- a/.gitignore
+++ b/.gitignore
@@ -68,7 +68,6 @@ target/
 notebooks/.ipynb_checkpoints/
 
 # Data folder
-data/
 solutions/
 
 # Latex stuff
diff --git a/data/emnist-test.npz b/data/emnist-test.npz
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index 0000000..05df1d8
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diff --git a/data/emnist-train.npz b/data/emnist-train.npz
new file mode 100644
index 0000000..177a30c
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diff --git a/data/emnist-valid.npz b/data/emnist-valid.npz
new file mode 100644
index 0000000..87183dd
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diff --git a/data/regularization_debug_pack.npy b/data/regularization_debug_pack.npy
new file mode 100644
index 0000000..f7c7494
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