diff --git a/.env.default b/.env.default
index 117e077..23cffb6 100644
--- a/.env.default
+++ b/.env.default
@@ -14,6 +14,8 @@ AE_LOG_LVL=warning # Python loglevel: warning, info, debug, etc
 
 OSIT_WEB_HTTP_PORT=8080
 OSIT_WEB_HTTPS_PORT=4443
+# Max body size is for nginx gunicorn apps (AE app and AE API)
+OSIT_WEB_MAX_BODY_SIZE=5120M
 
 # For now this extra host variable is important for the AE Flask app to connect to the AE FastAPI API.
 DOCKER_AE_SERVER_EXTRA_HOST=test.oneskyit.com:192.168.32.20
@@ -97,3 +99,5 @@ AE_APP_LOG_PATH="/logs/aether_app.log"
 AE_APP_WORKERS=1
 AE_APP_THREADS=1
 AE_APP_RELOAD=True
+# Generate a new key with: # python -c 'import os; print(os.urandom(16))'
+AE_APP_CACHE_SECRET_KEY="$\x93\x12\xb4R\x80R\xb5\xe50\xa0k\xc8#RN"
\ No newline at end of file
diff --git a/conf/aether_app_config.py b/conf/aether_app_config.py
index abb53fe..89792ff 100644
--- a/conf/aether_app_config.py
+++ b/conf/aether_app_config.py
@@ -14,7 +14,7 @@ ENV = 'development' # None, 'backup', 'default', 'development', 'production', 't
 DEBUG = True
 TESTING = True
 
-SECRET_KEY = '\x08}\xe1q?\xb2\x16o9\xf1\x1d\xc7\xa8\xfb!\xff' # Generate a new key with: # python -c 'import os; print(os.urandom(16))'
+SECRET_KEY = os.getenv('AE_APP_CACHE_SECRET_KEY', None) # Generate a new key with: # python -c 'import os; print(os.urandom(16))'
 
 # SESSION_COOKIE_NAME = 'session'
 # SESSION_COOKIE_DOMAIN = '.onesky.com'
@@ -38,7 +38,7 @@ SESSION_REFRESH_EACH_REQUEST = True
 # SERVER_NAME = ''
 
 # UPLOAD_FOLDER = ''
-MAX_CONTENT_LENGTH = 5120 * 1024 * 1024 # 5 GB
+# MAX_CONTENT_LENGTH = 5120 * 1024 * 1024 # 5 GB
 
 SEND_FILE_MAX_AGE_DEFAULT = 3 # default 43200 (in seconds), 1800 = 30 minutes
 
diff --git a/conf/nginx/site-enabled_aether_api_v5_fastapi_gunicorn.conf b/conf/nginx/site-enabled_aether_api_v5_fastapi_gunicorn.conf
index 512219f..c816daf 100644
--- a/conf/nginx/site-enabled_aether_api_v5_fastapi_gunicorn.conf
+++ b/conf/nginx/site-enabled_aether_api_v5_fastapi_gunicorn.conf
@@ -13,7 +13,7 @@ server {
     access_log  /logs/nginx/access_fastapi_gunicorn.log;
     error_log  /logs/nginx/error_fastapi_gunicorn.log;
 
-    client_max_body_size 5120M; #4096M or 4G; 5120M or 5G;
+    client_max_body_size ${OSIT_WEB_MAX_BODY_SIZE}; # 5120M; #4096M or 4G; 5120M or 5G;
 
     location / {
         proxy_set_header Host $http_host;
@@ -87,7 +87,7 @@ server {
     # include brotli.conf;
     # include gzip.conf;
 
-    client_max_body_size 5120M; #4096M or 4G; 5120M or 5G;
+    client_max_body_size ${OSIT_WEB_MAX_BODY_SIZE}; # 5120M; #4096M or 4G; 5120M or 5G;
 
     location / {
         proxy_set_header Host $http_host;
diff --git a/conf/nginx/site-enabled_aether_fastapi_gunicorn.conf b/conf/nginx/site-enabled_aether_fastapi_gunicorn.conf
index f8a6f5b..7c9dc93 100644
--- a/conf/nginx/site-enabled_aether_fastapi_gunicorn.conf
+++ b/conf/nginx/site-enabled_aether_fastapi_gunicorn.conf
@@ -13,7 +13,7 @@ server {
     access_log  /logs/nginx/access_fastapi_gunicorn.log;
     error_log  /logs/nginx/error_fastapi_gunicorn.log;
 
-    client_max_body_size 5120M; #4096M or 4G; 5120M or 5G;
+    client_max_body_size ${OSIT_WEB_MAX_BODY_SIZE}; # 5120M; #4096M or 4G; 5120M or 5G;
 
     location / {
         proxy_set_header Host $http_host;
@@ -87,7 +87,7 @@ server {
     # include brotli.conf;
     # include gzip.conf;
 
-    client_max_body_size 5120M; #4096M or 4G; 5120M or 5G;
+    client_max_body_size ${OSIT_WEB_MAX_BODY_SIZE}; # 5120M; #4096M or 4G; 5120M or 5G;
 
     location / {
         proxy_set_header Host $http_host;
diff --git a/conf/nginx/site-enabled_aether_flask_gunicorn.conf b/conf/nginx/site-enabled_aether_flask_gunicorn.conf
index 5060f6f..f124581 100644
--- a/conf/nginx/site-enabled_aether_flask_gunicorn.conf
+++ b/conf/nginx/site-enabled_aether_flask_gunicorn.conf
@@ -31,7 +31,7 @@ server {
     access_log  /logs/nginx/access_flask_gunicorn.log;
     error_log  /logs/nginx/error_flask_gunicorn.log;
 
-    client_max_body_size 5120M; #4096M or 4G; 5120M or 5G;
+    client_max_body_size ${OSIT_WEB_MAX_BODY_SIZE}; # 5120M; #4096M or 4G; 5120M or 5G;
 
     location / {
         proxy_set_header Host $http_host;
@@ -97,7 +97,7 @@ server {
     # include brotli.conf;
     # include gzip.conf;
 
-    client_max_body_size 5120M; #4096M or 4G; 5120M or 5G;
+    client_max_body_size ${OSIT_WEB_MAX_BODY_SIZE}; # 5120M; #4096M or 4G; 5120M or 5G;
 
     location / {
         proxy_set_header Host $http_host;