diff --git a/dgf/src/analyse/__init__.py b/dgf/src/analyse/__init__.py
new file mode 100644
index 0000000..4446e91
--- /dev/null
+++ b/dgf/src/analyse/__init__.py
@@ -0,0 +1,14 @@
+# Copyright 2022 Google LLC.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     https://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
diff --git a/dgf/src/analyse/reports/__init__.py b/dgf/src/analyse/reports/__init__.py
new file mode 100644
index 0000000..4446e91
--- /dev/null
+++ b/dgf/src/analyse/reports/__init__.py
@@ -0,0 +1,14 @@
+# Copyright 2022 Google LLC.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     https://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
diff --git a/dgf/src/analyse/reports/renderers/__init__.py b/dgf/src/analyse/reports/renderers/__init__.py
new file mode 100644
index 0000000..4446e91
--- /dev/null
+++ b/dgf/src/analyse/reports/renderers/__init__.py
@@ -0,0 +1,14 @@
+# Copyright 2022 Google LLC.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     https://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
diff --git a/dgf/src/analyse/reports/templates/__init__.py b/dgf/src/analyse/reports/templates/__init__.py
new file mode 100644
index 0000000..4446e91
--- /dev/null
+++ b/dgf/src/analyse/reports/templates/__init__.py
@@ -0,0 +1,14 @@
+# Copyright 2022 Google LLC.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     https://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
diff --git a/dgf/src/analyse/topology/__init__.py b/dgf/src/analyse/topology/__init__.py
new file mode 100644
index 0000000..4446e91
--- /dev/null
+++ b/dgf/src/analyse/topology/__init__.py
@@ -0,0 +1,14 @@
+# Copyright 2022 Google LLC.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     https://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
diff --git a/dgf/src/beam/__init__.py b/dgf/src/beam/__init__.py
new file mode 100644
index 0000000..4446e91
--- /dev/null
+++ b/dgf/src/beam/__init__.py
@@ -0,0 +1,14 @@
+# Copyright 2022 Google LLC.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     https://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
diff --git a/dgf/src/beam/learning/__init__.py b/dgf/src/beam/learning/__init__.py
new file mode 100644
index 0000000..4446e91
--- /dev/null
+++ b/dgf/src/beam/learning/__init__.py
@@ -0,0 +1,14 @@
+# Copyright 2022 Google LLC.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     https://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
diff --git a/dgf/src/beam/learning/ten_lines/__init__.py b/dgf/src/beam/learning/ten_lines/__init__.py
new file mode 100644
index 0000000..4446e91
--- /dev/null
+++ b/dgf/src/beam/learning/ten_lines/__init__.py
@@ -0,0 +1,14 @@
+# Copyright 2022 Google LLC.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     https://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
diff --git a/dgf/src/data/__init__.py b/dgf/src/data/__init__.py
new file mode 100644
index 0000000..4446e91
--- /dev/null
+++ b/dgf/src/data/__init__.py
@@ -0,0 +1,14 @@
+# Copyright 2022 Google LLC.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     https://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
diff --git a/dgf/src/generate/__init__.py b/dgf/src/generate/__init__.py
new file mode 100644
index 0000000..4446e91
--- /dev/null
+++ b/dgf/src/generate/__init__.py
@@ -0,0 +1,14 @@
+# Copyright 2022 Google LLC.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     https://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
diff --git a/dgf/src/io/__init__.py b/dgf/src/io/__init__.py
new file mode 100644
index 0000000..4446e91
--- /dev/null
+++ b/dgf/src/io/__init__.py
@@ -0,0 +1,14 @@
+# Copyright 2022 Google LLC.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     https://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
diff --git a/dgf/src/io/gcp/__init__.py b/dgf/src/io/gcp/__init__.py
new file mode 100644
index 0000000..4446e91
--- /dev/null
+++ b/dgf/src/io/gcp/__init__.py
@@ -0,0 +1,14 @@
+# Copyright 2022 Google LLC.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     https://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
diff --git a/dgf/src/learning/__init__.py b/dgf/src/learning/__init__.py
new file mode 100644
index 0000000..4446e91
--- /dev/null
+++ b/dgf/src/learning/__init__.py
@@ -0,0 +1,14 @@
+# Copyright 2022 Google LLC.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     https://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
diff --git a/dgf/src/learning/jax/__init__.py b/dgf/src/learning/jax/__init__.py
new file mode 100644
index 0000000..4446e91
--- /dev/null
+++ b/dgf/src/learning/jax/__init__.py
@@ -0,0 +1,14 @@
+# Copyright 2022 Google LLC.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     https://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
diff --git a/dgf/src/learning/jax/layers/__init__.py b/dgf/src/learning/jax/layers/__init__.py
new file mode 100644
index 0000000..4446e91
--- /dev/null
+++ b/dgf/src/learning/jax/layers/__init__.py
@@ -0,0 +1,14 @@
+# Copyright 2022 Google LLC.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     https://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
diff --git a/dgf/src/learning/ten_lines/__init__.py b/dgf/src/learning/ten_lines/__init__.py
new file mode 100644
index 0000000..4446e91
--- /dev/null
+++ b/dgf/src/learning/ten_lines/__init__.py
@@ -0,0 +1,14 @@
+# Copyright 2022 Google LLC.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     https://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
diff --git a/dgf/src/plot/__init__.py b/dgf/src/plot/__init__.py
new file mode 100644
index 0000000..4446e91
--- /dev/null
+++ b/dgf/src/plot/__init__.py
@@ -0,0 +1,14 @@
+# Copyright 2022 Google LLC.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     https://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
diff --git a/dgf/src/sampling/__init__.py b/dgf/src/sampling/__init__.py
new file mode 100644
index 0000000..4446e91
--- /dev/null
+++ b/dgf/src/sampling/__init__.py
@@ -0,0 +1,14 @@
+# Copyright 2022 Google LLC.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     https://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
diff --git a/dgf/src/sampling/gcp/__init__.py b/dgf/src/sampling/gcp/__init__.py
new file mode 100644
index 0000000..4446e91
--- /dev/null
+++ b/dgf/src/sampling/gcp/__init__.py
@@ -0,0 +1,14 @@
+# Copyright 2022 Google LLC.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     https://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
diff --git a/dgf/src/sketching/__init__.py b/dgf/src/sketching/__init__.py
new file mode 100644
index 0000000..4446e91
--- /dev/null
+++ b/dgf/src/sketching/__init__.py
@@ -0,0 +1,14 @@
+# Copyright 2022 Google LLC.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     https://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
diff --git a/dgf/src/transform/__init__.py b/dgf/src/transform/__init__.py
new file mode 100644
index 0000000..4446e91
--- /dev/null
+++ b/dgf/src/transform/__init__.py
@@ -0,0 +1,14 @@
+# Copyright 2022 Google LLC.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     https://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
diff --git a/dgf/src/util/__init__.py b/dgf/src/util/__init__.py
new file mode 100644
index 0000000..4446e91
--- /dev/null
+++ b/dgf/src/util/__init__.py
@@ -0,0 +1,14 @@
+# Copyright 2022 Google LLC.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     https://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
diff --git a/dgf/src/validate/__init__.py b/dgf/src/validate/__init__.py
new file mode 100644
index 0000000..4446e91
--- /dev/null
+++ b/dgf/src/validate/__init__.py
@@ -0,0 +1,14 @@
+# Copyright 2022 Google LLC.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     https://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
diff --git a/doc/.readthedocs.yaml b/doc/.readthedocs.yaml
index bf87a77..a247107 100644
--- a/doc/.readthedocs.yaml
+++ b/doc/.readthedocs.yaml
@@ -7,12 +7,6 @@ build:
   os: ubuntu-24.04
   tools:
     python: "3.13"
-  jobs:
-    pre_install:
-      - pip install --no-deps dgf
-    build:
-      html:
-        - python -m mkdocs build -v --clean --site-dir $READTHEDOCS_OUTPUT/html --config-file doc/mkdocs.yml
 
 mkdocs:
    configuration: doc/mkdocs.yml