diff --git a/.github/workflows/publish.yml b/.github/workflows/publish.yml
index b0daf62..14fb4ab 100644
--- a/.github/workflows/publish.yml
+++ b/.github/workflows/publish.yml
@@ -25,11 +25,6 @@ jobs:
           pip install build;
         continue-on-error: false
 
-      - name: Setup Node
-        uses: actions/setup-node@v4
-        with:
-          node-version: 20
-
       - name: Build the module
         env:
           PYPI_PASSWORD: ${{ secrets.PYPI_PASSWORD }}
diff --git a/guardrails_api/app.py b/guardrails_api/app.py
index 366096c..088d172 100644
--- a/guardrails_api/app.py
+++ b/guardrails_api/app.py
@@ -47,7 +47,7 @@ def register_config(config: Optional[str] = None):
         SourceFileLoader("config", config_file_path).load_module()
 
 
-def create_app(env: Optional[str] = None, config: Optional[str] = None):
+def create_app(env: Optional[str] = None, config: Optional[str] = None, port: Optional[int] = None):
     if os.environ.get("APP_ENVIRONMENT") != "production":
         from dotenv import load_dotenv
 
@@ -56,6 +56,11 @@ def create_app(env: Optional[str] = None, config: Optional[str] = None):
         env_file_path = os.path.abspath(env_file)
         load_dotenv(env_file_path)
 
+    set_port = port or os.environ.get("PORT", 8000)
+    host = os.environ.get("HOST", "http://localhost")
+    self_endpoint = os.environ.get("SELF_ENDPOINT", f"{host}:{set_port}")
+    os.environ["SELF_ENDPOINT"] = self_endpoint
+
     register_config(config)
 
     app = Flask(__name__)
diff --git a/guardrails_api/cli/start.py b/guardrails_api/cli/start.py
index d686621..0fe995c 100644
--- a/guardrails_api/cli/start.py
+++ b/guardrails_api/cli/start.py
@@ -29,12 +29,22 @@ def start(
     env: Optional[str] = typer.Option(
         default="",
         help="An env file to load environment variables from.",
-        prompt=".env file (optional)",
     ),
     config: Optional[str] = typer.Option(
         default="",
         help="A config file to load Guards from.",
-        prompt="config file (optional)",
+    ),
+    timeout: Optional[int] = typer.Option(
+        default=5,
+        help="Gunicorn worker timeout.",
+    ),
+    threads: Optional[int] = typer.Option(
+        default=10,
+        help="Number of Gunicorn worker threads.",
+    ),
+    port: Optional[int] = typer.Option(
+        default=8000,
+        help="The port to run the server on.",
     ),
 ):
     # TODO: If these are empty,
@@ -43,8 +53,8 @@ def start(
     config = config or None
 
     options = {
-        "bind": "0.0.0.0:8000",
-        "timeout": 5,
-        "threads": 10,
+        "bind": f"0.0.0.0:{port}",
+        "timeout": timeout,
+        "threads": threads,
     }
-    StandaloneApplication(create_app(env, config), options).run()
+    StandaloneApplication(create_app(env, config, port), options).run()
diff --git a/guardrails_api/clients/cache_client.py b/guardrails_api/clients/cache_client.py
index f910834..e24bcb5 100644
--- a/guardrails_api/clients/cache_client.py
+++ b/guardrails_api/clients/cache_client.py
@@ -15,9 +15,8 @@ def initialize(self, app):
         self.cache = Cache(
             app, 
             config={
-                "CACHE_TYPE": "simple",
+                "CACHE_TYPE": "SimpleCache",
                 "CACHE_DEFAULT_TIMEOUT": 300,
-                "CACHE_NO_NULL_WARNING": True,
                 "CACHE_THRESHOLD": 50
             }
         )
diff --git a/guardrails_api/default.env b/guardrails_api/default.env
index 674906a..6e37d0b 100644
--- a/guardrails_api/default.env
+++ b/guardrails_api/default.env
@@ -3,5 +3,6 @@ PYTHONUNBUFFERED=1
 LOGLEVEL="INFO"
 GUARDRAILS_LOG_LEVEL="INFO"
 GUARDRAILS_PROCESS_COUNT=1
-SELF_ENDPOINT=http://localhost:8000
+HOST=http://localhost
+PORT=8000
 OBJC_DISABLE_INITIALIZE_FORK_SAFETY=YES
\ No newline at end of file