diff --git a/gen_release.py b/gen_release.py
index ed453a7..a759918 100644
--- a/gen_release.py
+++ b/gen_release.py
@@ -9,6 +9,7 @@ import shutil
 import subprocess
 import sys
 import platform
+import re
 
 
 # Get the current directory
@@ -30,37 +31,41 @@ os.makedirs(release_folder)
 
 # Get the current Git branch name
 git_branch = subprocess.check_output(['git', 'rev-parse', '--abbrev-ref', 'HEAD']).decode().strip()
+commit_hash = subprocess.check_output(['git', 'rev-parse', 'HEAD']).decode().strip()[:10]
 
-# Build the PlatformIO project
+# If arguments are supplied, build the environments that match the arguments
 if len(sys.argv) > 1:
-    # If arguments are supplied, build the environments that match the arguments
     environments = sys.argv[1:]
-    for environment in environments:
-        subprocess.run([f'{platformio_path}/platformio.exe', 'run', '-e', environment], cwd=current_dir)
-        
-        # Iterate over the subfolders in the firmware folder
-        for subfolder in os.listdir(firmware_folder):
-            subfolder_path = os.path.join(firmware_folder, subfolder)
-            
-            # Check if the subfolder matches the environment argument
-            if subfolder == environment:
-                # Check if the subfolder contains a firmware.bin file
-                firmware_file = os.path.join(subfolder_path, 'firmware.bin')
-                if os.path.isfile(firmware_file):
-                    # Move the firmware.bin file to the release folder with the Git branch name appended
-                    new_file_name = os.path.join(release_folder, f"{subfolder}_{git_branch}.bin")
-                    shutil.move(firmware_file, new_file_name)
-else:
-    # If no argument is supplied, build all environments
-    subprocess.run([f'{platformio_path}/platformio.exe', 'run'], cwd=current_dir)
 
+# If no argument are supplied, build all environments listed in platformio.ini
+else:
+    environments = []
+    with open(os.path.join(current_dir, 'platformio.ini')) as f:
+
+        # Iterate over the lines in platformio.ini
+        for line in f.readlines():
+
+            # Check if the line contains the string "env:"
+            if '[env:' in line:
+
+                # Extract the environment using regular expressions
+                environment = re.search(r'\[env:(.*?)\]', line).group(1)
+
+                # Add the environment to the list of environments
+                environments.append(environment)
+
+for environment in environments:
+    subprocess.run([f'{platformio_path}/platformio.exe', 'run', '-e', environment,f'-DFW_VERSION={git_branch}_{environment}_{commit_hash}'], cwd=current_dir)
+    
     # Iterate over the subfolders in the firmware folder
     for subfolder in os.listdir(firmware_folder):
         subfolder_path = os.path.join(firmware_folder, subfolder)
         
-        # Check if the subfolder contains a firmware.bin file
-        firmware_file = os.path.join(subfolder_path, 'firmware.bin')
-        if os.path.isfile(firmware_file):
-            # Move the firmware.bin file to the release folder with the Git branch name appended
-            new_file_name = os.path.join(release_folder, f"{subfolder}_{git_branch}.bin")
-            shutil.move(firmware_file, new_file_name)
+        # Check if the subfolder matches the environment argument
+        if subfolder == environment:
+            # Check if the subfolder contains a firmware.bin file
+            firmware_file = os.path.join(subfolder_path, 'firmware.bin')
+            if os.path.isfile(firmware_file):
+                # Move the firmware.bin file to the release folder with the Git branch name and commit hash appended
+                new_file_name = os.path.join(release_folder, f"{git_branch}_{subfolder}_{commit_hash}.bin")
+                shutil.move(firmware_file, new_file_name)
\ No newline at end of file