diff --git a/.gitignore b/.gitignore
index ec99986..c5fe551 100644
--- a/.gitignore
+++ b/.gitignore
@@ -5,7 +5,8 @@
 .LSOverride
 
 # Icon must end with two \r
-Icon

+Icon
+
 
 # Thumbnails
 ._*
@@ -80,3 +81,6 @@ compile_commands.json
 CTestTestfile.cmake
 _deps
 
+# ---> Custom
+Asset/Classes.txt
+
diff --git a/.gitmodules b/.gitmodules
new file mode 100644
index 0000000..d718cf0
--- /dev/null
+++ b/.gitmodules
@@ -0,0 +1,3 @@
+[submodule "Swift-MessageUtils"]
+	path = Swift-MessageUtils
+	url = https://repositories.communitynotfound.work/PoliBa-Software-Architecture/Swift-MessageUtils.git
diff --git a/Asset/MessageBytes.md b/Asset/MessageBytes.md
new file mode 100644
index 0000000..f003520
--- /dev/null
+++ b/Asset/MessageBytes.md
@@ -0,0 +1,52 @@
+# Message Structure
+```
++-+ 64 - bits---+----------------+-------------+----------------+-----------------------+
+|0| Version 7   | Message Type 8 | Dev Type 8  | RESERVED 8    | Sign Type 32          |
++-+-------------+----------------+-------------+----------------+-----------------------+
+| Timestamp 64                                                                          |
++---------------------------------------------------------------------------------------+
+| DevID 128 bits                                                                        |
+|                                                                                       |
++---------------------------------------------------------------------------------------+
+| Location 192 bits                                                                     |
+|                                                                                       |
+|                                                                                       |
++---------------------------------------------------------------------------------------+
+\                                                                                       /
+ | Fields -----------------------------------------------------------------------------|
+/                                                                                       \
++---------------------------------------------------------------------------------------+
+| 0 Padding 64 - n                                                                      |
++---------------------------------------------------------------------------------------+
+| Signature up to-512 bits                                                              |
+|                                                                                       |
+|                                                                                       |
+|                                                                                       |
+|                                                                                       |
+|                                                                                       |
+|                                                                                       |
+|                                                                                       |
++---------------------------------------------------------------------------------------+
+```
+
+# Fields
+each field can be at most 8 * 2^32 bits of length:
+- 34359738368 bits
+- 4294967296 Bytes
+
+## Key
+**MUST** be a `String`
+
+## Value
+It's up to the Application to decide whether the value is 
+a string or another type of datum
+
+```
++-- 64 - bits--------------------------+----------------------------------------+
+|  Key-Length 32                       | Value-Length 32                        |
++--------------------------------------+----------------------------------------+
+\   Key                                                                         /
+ |-----------------------------------------------------------------------------|
+/   Value                                                                       \
++-------------------------------------------------------------------------------+
+```
\ No newline at end of file
diff --git a/Swift-MessageUtils b/Swift-MessageUtils
new file mode 160000
index 0000000..8ae5892
--- /dev/null
+++ b/Swift-MessageUtils
@@ -0,0 +1 @@
+Subproject commit 8ae58929b01bf0b1a4a8c31b81dbbf18a3876feb