diff --git a/src/MongODM.AspNetCore/Extensions/ApplicationBuilderExtensions.cs b/src/MongODM.AspNetCore/Extensions/ApplicationBuilderExtensions.cs
index 88e55007..1eb2214f 100644
--- a/src/MongODM.AspNetCore/Extensions/ApplicationBuilderExtensions.cs
+++ b/src/MongODM.AspNetCore/Extensions/ApplicationBuilderExtensions.cs
@@ -1,4 +1,18 @@
-using Etherna.ExecContext.AsyncLocal;
+//   Copyright 2020-present Etherna Sagl
+//
+//   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.
+
+using Etherna.ExecContext.AsyncLocal;
 using Etherna.MongODM.Core;
 using Etherna.MongODM.Core.Options;
 using Microsoft.AspNetCore.Builder;
diff --git a/src/MongODM.Core/Exceptions/MongodmDbSeedingException.cs b/src/MongODM.Core/Exceptions/MongodmDbSeedingException.cs
index c9d0a045..020a132f 100644
--- a/src/MongODM.Core/Exceptions/MongodmDbSeedingException.cs
+++ b/src/MongODM.Core/Exceptions/MongodmDbSeedingException.cs
@@ -1,4 +1,18 @@
-using System;
+//   Copyright 2020-present Etherna Sagl
+//
+//   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.
+
+using System;
 
 namespace Etherna.MongODM.Core.Exceptions
 {
diff --git a/src/MongODM.Core/Exceptions/MongodmIndexBuildingException.cs b/src/MongODM.Core/Exceptions/MongodmIndexBuildingException.cs
index f57f5c47..2cecc519 100644
--- a/src/MongODM.Core/Exceptions/MongodmIndexBuildingException.cs
+++ b/src/MongODM.Core/Exceptions/MongodmIndexBuildingException.cs
@@ -1,4 +1,18 @@
-using System;
+//   Copyright 2020-present Etherna Sagl
+//
+//   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.
+
+using System;
 
 namespace Etherna.MongODM.Core.Exceptions
 {
diff --git a/src/MongODM.Core/IDbContextBuilder.cs b/src/MongODM.Core/IDbContextBuilder.cs
index fef5fb24..1dcdaa7d 100644
--- a/src/MongODM.Core/IDbContextBuilder.cs
+++ b/src/MongODM.Core/IDbContextBuilder.cs
@@ -1,4 +1,18 @@
-using Etherna.MongoDB.Driver;
+//   Copyright 2020-present Etherna Sagl
+//
+//   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.
+
+using Etherna.MongoDB.Driver;
 using Etherna.MongODM.Core.Options;
 using System.Collections.Generic;
 
diff --git a/src/MongODM.Core/Options/MongODMOptionsBuilder.cs b/src/MongODM.Core/Options/MongODMOptionsBuilder.cs
index 91167983..94a23358 100644
--- a/src/MongODM.Core/Options/MongODMOptionsBuilder.cs
+++ b/src/MongODM.Core/Options/MongODMOptionsBuilder.cs
@@ -1,4 +1,18 @@
-using System;
+//   Copyright 2020-present Etherna Sagl
+//
+//   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.
+
+using System;
 using System.Collections.Generic;
 
 namespace Etherna.MongODM.Core.Options
diff --git a/src/MongODM.Core/Properties/IsExternalInit.cs b/src/MongODM.Core/Properties/IsExternalInit.cs
index d3603fa5..252ec65e 100644
--- a/src/MongODM.Core/Properties/IsExternalInit.cs
+++ b/src/MongODM.Core/Properties/IsExternalInit.cs
@@ -1,4 +1,18 @@
-// Required because of this https://developercommunity.visualstudio.com/t/error-cs0518-predefined-type-systemruntimecompiler/1244809
+//   Copyright 2020-present Etherna Sagl
+//
+//   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.
+
+// Required because of this https://developercommunity.visualstudio.com/t/error-cs0518-predefined-type-systemruntimecompiler/1244809
 namespace System.Runtime.CompilerServices
 {
     internal static class IsExternalInit { }
diff --git a/src/MongODM.Core/Repositories/PaginatedEnumerable.cs b/src/MongODM.Core/Repositories/PaginatedEnumerable.cs
index 6f2c9a09..d2f45986 100644
--- a/src/MongODM.Core/Repositories/PaginatedEnumerable.cs
+++ b/src/MongODM.Core/Repositories/PaginatedEnumerable.cs
@@ -1,4 +1,18 @@
-using System.Collections.Generic;
+//   Copyright 2020-present Etherna Sagl
+//
+//   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.
+
+using System.Collections.Generic;
 
 namespace Etherna.MongODM.Core.Repositories
 {
diff --git a/src/MongODM.Core/Serialization/Mapping/DiscriminatorRegistry.cs b/src/MongODM.Core/Serialization/Mapping/DiscriminatorRegistry.cs
index c0c4114e..49ec517c 100644
--- a/src/MongODM.Core/Serialization/Mapping/DiscriminatorRegistry.cs
+++ b/src/MongODM.Core/Serialization/Mapping/DiscriminatorRegistry.cs
@@ -1,4 +1,18 @@
-using Etherna.MongoDB.Bson;
+//   Copyright 2020-present Etherna Sagl
+//
+//   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.
+
+using Etherna.MongoDB.Bson;
 using Etherna.MongoDB.Bson.Serialization.Conventions;
 using Etherna.MongODM.Core.Conventions;
 using System;
diff --git a/src/MongODM.Core/Serialization/Mapping/IDiscriminatorRegistry.cs b/src/MongODM.Core/Serialization/Mapping/IDiscriminatorRegistry.cs
index eb77e408..a0ee2e1b 100644
--- a/src/MongODM.Core/Serialization/Mapping/IDiscriminatorRegistry.cs
+++ b/src/MongODM.Core/Serialization/Mapping/IDiscriminatorRegistry.cs
@@ -1,4 +1,18 @@
-using Etherna.MongoDB.Bson;
+//   Copyright 2020-present Etherna Sagl
+//
+//   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.
+
+using Etherna.MongoDB.Bson;
 using Etherna.MongoDB.Bson.Serialization.Conventions;
 using System;
 
diff --git a/src/MongODM.Core/Serialization/Providers/ModelMapSerializationProvider.cs b/src/MongODM.Core/Serialization/Providers/ModelMapSerializationProvider.cs
index b17e2a6b..5fa0cc2a 100644
--- a/src/MongODM.Core/Serialization/Providers/ModelMapSerializationProvider.cs
+++ b/src/MongODM.Core/Serialization/Providers/ModelMapSerializationProvider.cs
@@ -1,4 +1,18 @@
-using Etherna.MongoDB.Bson;
+//   Copyright 2020-present Etherna Sagl
+//
+//   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.
+
+using Etherna.MongoDB.Bson;
 using Etherna.MongoDB.Bson.Serialization;
 using Etherna.MongODM.Core.Serialization.Serializers;
 using System;
diff --git a/src/MongODM.Core/Tasks/ITaskRunnerBuilder.cs b/src/MongODM.Core/Tasks/ITaskRunnerBuilder.cs
index a7d64bb6..45a32c11 100644
--- a/src/MongODM.Core/Tasks/ITaskRunnerBuilder.cs
+++ b/src/MongODM.Core/Tasks/ITaskRunnerBuilder.cs
@@ -1,4 +1,18 @@
-using Etherna.MongODM.Core.Options;
+//   Copyright 2020-present Etherna Sagl
+//
+//   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.
+
+using Etherna.MongODM.Core.Options;
 
 namespace Etherna.MongODM.Core.Tasks
 {
diff --git a/src/MongODM.Core/Utility/DbExecutionContextHandler.cs b/src/MongODM.Core/Utility/DbExecutionContextHandler.cs
index 242d48fd..2eba35b5 100644
--- a/src/MongODM.Core/Utility/DbExecutionContextHandler.cs
+++ b/src/MongODM.Core/Utility/DbExecutionContextHandler.cs
@@ -1,4 +1,18 @@
-using Etherna.ExecContext;
+//   Copyright 2020-present Etherna Sagl
+//
+//   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.
+
+using Etherna.ExecContext;
 using Etherna.ExecContext.AsyncLocal;
 using System;
 using System.Collections;
diff --git a/src/MongODM.Core/Utility/SerializationContextAccessor.cs b/src/MongODM.Core/Utility/SerializationContextAccessor.cs
index 4bda1f2b..4adf0697 100644
--- a/src/MongODM.Core/Utility/SerializationContextAccessor.cs
+++ b/src/MongODM.Core/Utility/SerializationContextAccessor.cs
@@ -1,4 +1,18 @@
-using Etherna.ExecContext;
+//   Copyright 2020-present Etherna Sagl
+//
+//   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.
+
+using Etherna.ExecContext;
 using Etherna.MongoDB.Bson.Serialization;
 
 namespace Etherna.MongODM.Core.Utility
diff --git a/src/MongODM.Hangfire/Extensions/HangfireGlobalConfigExtension.cs b/src/MongODM.Hangfire/Extensions/HangfireGlobalConfigExtension.cs
index 7a88ce78..a527a5e1 100644
--- a/src/MongODM.Hangfire/Extensions/HangfireGlobalConfigExtension.cs
+++ b/src/MongODM.Hangfire/Extensions/HangfireGlobalConfigExtension.cs
@@ -1,4 +1,18 @@
-using Etherna.ExecContext.AsyncLocal;
+//   Copyright 2020-present Etherna Sagl
+//
+//   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.
+
+using Etherna.ExecContext.AsyncLocal;
 using Etherna.MongODM.HF.Filters;
 
 namespace Hangfire