diff --git a/web/app.rb b/web/app.rb
index 6fed6a3..2de146e 100644
--- a/web/app.rb
+++ b/web/app.rb
@@ -1,3 +1,15 @@
+# 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
+#
+#     http://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.
+
 # frozen_string_literal: true
 
 require_relative "lib/potato_mesh/application"
diff --git a/web/lib/potato_mesh/application.rb b/web/lib/potato_mesh/application.rb
index fd34791..2fc1797 100644
--- a/web/lib/potato_mesh/application.rb
+++ b/web/lib/potato_mesh/application.rb
@@ -1,3 +1,15 @@
+# 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
+#
+#     http://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.
+
 # frozen_string_literal: true
 
 require "sinatra/base"
diff --git a/web/lib/potato_mesh/application/data_processing.rb b/web/lib/potato_mesh/application/data_processing.rb
index 91b371f..dff7925 100644
--- a/web/lib/potato_mesh/application/data_processing.rb
+++ b/web/lib/potato_mesh/application/data_processing.rb
@@ -1,3 +1,15 @@
+# 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
+#
+#     http://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.
+
 # frozen_string_literal: true
 
 module PotatoMesh
diff --git a/web/lib/potato_mesh/application/database.rb b/web/lib/potato_mesh/application/database.rb
index 0061a68..94b1f05 100644
--- a/web/lib/potato_mesh/application/database.rb
+++ b/web/lib/potato_mesh/application/database.rb
@@ -1,3 +1,15 @@
+# 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
+#
+#     http://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.
+
 # frozen_string_literal: true
 
 module PotatoMesh
diff --git a/web/lib/potato_mesh/application/errors.rb b/web/lib/potato_mesh/application/errors.rb
index be27dfc..1383d3f 100644
--- a/web/lib/potato_mesh/application/errors.rb
+++ b/web/lib/potato_mesh/application/errors.rb
@@ -1,3 +1,15 @@
+# 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
+#
+#     http://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.
+
 # frozen_string_literal: true
 
 module PotatoMesh
diff --git a/web/lib/potato_mesh/application/federation.rb b/web/lib/potato_mesh/application/federation.rb
index 5e9736c..a5a6bae 100644
--- a/web/lib/potato_mesh/application/federation.rb
+++ b/web/lib/potato_mesh/application/federation.rb
@@ -1,3 +1,15 @@
+# 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
+#
+#     http://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.
+
 # frozen_string_literal: true
 
 module PotatoMesh
diff --git a/web/lib/potato_mesh/application/helpers.rb b/web/lib/potato_mesh/application/helpers.rb
index fd71272..97d757e 100644
--- a/web/lib/potato_mesh/application/helpers.rb
+++ b/web/lib/potato_mesh/application/helpers.rb
@@ -1,3 +1,15 @@
+# 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
+#
+#     http://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.
+
 # frozen_string_literal: true
 
 module PotatoMesh
diff --git a/web/lib/potato_mesh/application/identity.rb b/web/lib/potato_mesh/application/identity.rb
index 90f8813..1feb639 100644
--- a/web/lib/potato_mesh/application/identity.rb
+++ b/web/lib/potato_mesh/application/identity.rb
@@ -1,3 +1,15 @@
+# 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
+#
+#     http://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.
+
 # frozen_string_literal: true
 
 module PotatoMesh
diff --git a/web/lib/potato_mesh/application/networking.rb b/web/lib/potato_mesh/application/networking.rb
index 1aa2679..b098437 100644
--- a/web/lib/potato_mesh/application/networking.rb
+++ b/web/lib/potato_mesh/application/networking.rb
@@ -1,3 +1,15 @@
+# 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
+#
+#     http://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.
+
 # frozen_string_literal: true
 
 module PotatoMesh
diff --git a/web/lib/potato_mesh/application/prometheus.rb b/web/lib/potato_mesh/application/prometheus.rb
index 6f3110d..7201447 100644
--- a/web/lib/potato_mesh/application/prometheus.rb
+++ b/web/lib/potato_mesh/application/prometheus.rb
@@ -1,3 +1,15 @@
+# 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
+#
+#     http://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.
+
 # frozen_string_literal: true
 
 module PotatoMesh
diff --git a/web/lib/potato_mesh/application/queries.rb b/web/lib/potato_mesh/application/queries.rb
index 86e9583..74a8fee 100644
--- a/web/lib/potato_mesh/application/queries.rb
+++ b/web/lib/potato_mesh/application/queries.rb
@@ -1,3 +1,15 @@
+# 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
+#
+#     http://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.
+
 # frozen_string_literal: true
 
 module PotatoMesh
diff --git a/web/lib/potato_mesh/application/routes/api.rb b/web/lib/potato_mesh/application/routes/api.rb
index ee93eb3..a7874da 100644
--- a/web/lib/potato_mesh/application/routes/api.rb
+++ b/web/lib/potato_mesh/application/routes/api.rb
@@ -1,3 +1,15 @@
+# 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
+#
+#     http://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.
+
 # frozen_string_literal: true
 
 module PotatoMesh
diff --git a/web/lib/potato_mesh/application/routes/ingest.rb b/web/lib/potato_mesh/application/routes/ingest.rb
index 3fa390c..d4b93e0 100644
--- a/web/lib/potato_mesh/application/routes/ingest.rb
+++ b/web/lib/potato_mesh/application/routes/ingest.rb
@@ -1,3 +1,15 @@
+# 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
+#
+#     http://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.
+
 # frozen_string_literal: true
 
 module PotatoMesh
diff --git a/web/lib/potato_mesh/application/routes/root.rb b/web/lib/potato_mesh/application/routes/root.rb
index 33bb6e0..045b347 100644
--- a/web/lib/potato_mesh/application/routes/root.rb
+++ b/web/lib/potato_mesh/application/routes/root.rb
@@ -1,3 +1,15 @@
+# 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
+#
+#     http://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.
+
 # frozen_string_literal: true
 
 module PotatoMesh
diff --git a/web/lib/potato_mesh/config.rb b/web/lib/potato_mesh/config.rb
index f6ab209..38918ce 100644
--- a/web/lib/potato_mesh/config.rb
+++ b/web/lib/potato_mesh/config.rb
@@ -1,3 +1,15 @@
+# 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
+#
+#     http://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.
+
 # frozen_string_literal: true
 
 module PotatoMesh
diff --git a/web/lib/potato_mesh/meta.rb b/web/lib/potato_mesh/meta.rb
index 639a20f..c2b79e8 100644
--- a/web/lib/potato_mesh/meta.rb
+++ b/web/lib/potato_mesh/meta.rb
@@ -1,3 +1,15 @@
+# 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
+#
+#     http://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.
+
 # frozen_string_literal: true
 
 require_relative "config"
diff --git a/web/lib/potato_mesh/sanitizer.rb b/web/lib/potato_mesh/sanitizer.rb
index 4d9332e..21fccd1 100644
--- a/web/lib/potato_mesh/sanitizer.rb
+++ b/web/lib/potato_mesh/sanitizer.rb
@@ -1,3 +1,15 @@
+# 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
+#
+#     http://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.
+
 # frozen_string_literal: true
 
 require "ipaddr"
diff --git a/web/public/assets/js/app/__tests__/config.test.js b/web/public/assets/js/app/__tests__/config.test.js
index e5a580a..6da3935 100644
--- a/web/public/assets/js/app/__tests__/config.test.js
+++ b/web/public/assets/js/app/__tests__/config.test.js
@@ -1,3 +1,17 @@
+/*
+ * 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
+ *
+ *     http://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.
+ */
+
 import test from 'node:test';
 import assert from 'node:assert/strict';
 import { documentStub, resetDocumentStub } from './document-stub.js';
diff --git a/web/public/assets/js/app/__tests__/document-stub.js b/web/public/assets/js/app/__tests__/document-stub.js
index 414ee89..e8838db 100644
--- a/web/public/assets/js/app/__tests__/document-stub.js
+++ b/web/public/assets/js/app/__tests__/document-stub.js
@@ -1,3 +1,17 @@
+/*
+ * 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
+ *
+ *     http://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.
+ */
+
 class DocumentStub {
   constructor() {
     this.reset();
diff --git a/web/public/assets/js/app/settings.js b/web/public/assets/js/app/settings.js
index 2c6807e..5f12492 100644
--- a/web/public/assets/js/app/settings.js
+++ b/web/public/assets/js/app/settings.js
@@ -1,3 +1,17 @@
+/*
+ * 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
+ *
+ *     http://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.
+ */
+
 /**
  * Default configuration values applied when the server omits a field.
  *
diff --git a/web/scripts/export-coverage.js b/web/scripts/export-coverage.js
index 34b1404..7baebd1 100644
--- a/web/scripts/export-coverage.js
+++ b/web/scripts/export-coverage.js
@@ -1,3 +1,17 @@
+/*
+ * 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
+ *
+ *     http://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.
+ */
+
 import { promises as fs } from 'node:fs';
 import path from 'node:path';
 
diff --git a/web/spec/config_spec.rb b/web/spec/config_spec.rb
index 73b5620..ca36e36 100644
--- a/web/spec/config_spec.rb
+++ b/web/spec/config_spec.rb
@@ -1,3 +1,15 @@
+# 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
+#
+#     http://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.
+
 # frozen_string_literal: true
 
 require "spec_helper"
diff --git a/web/spec/federation_spec.rb b/web/spec/federation_spec.rb
index 73dbd3e..694d78e 100644
--- a/web/spec/federation_spec.rb
+++ b/web/spec/federation_spec.rb
@@ -1,3 +1,15 @@
+# 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
+#
+#     http://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.
+
 # frozen_string_literal: true
 
 require "spec_helper"