diff --git a/.deepsource.toml b/.deepsource.toml
new file mode 100644
index 0000000..1ef920f
--- /dev/null
+++ b/.deepsource.toml
@@ -0,0 +1,13 @@
+version = 1
+
+[[analyzers]]
+name = "python"
+
+  [analyzers.meta]
+  runtime_version = "3.x.x"
+
+[[transformers]]
+name = "black"
+
+[[transformers]]
+name = "isort"
\ No newline at end of file
diff --git a/zerotrust_adblock/utils.py b/zerotrust_adblock/utils.py
new file mode 100644
index 0000000..3b1df50
--- /dev/null
+++ b/zerotrust_adblock/utils.py
@@ -0,0 +1,85 @@
+import os
+import pathlib
+
+import requests
+from dotenv import load_dotenv
+
+# List Utils
+
+
+# Convert a hosts file to a simple hostname list
+def convert_to_list(file: pathlib.Path) -> list:
+    with open(file, "r") as f:
+        # Don't read commented lines; strip whitespace; remove 127.0.0.1 from beginning of line; ignore lines with "localhost"; ignore lines with "::1"; ignore newlines            blocklists.extend([i[10:].strip() for i in f.readlines() if not i.startswith('#') and 'localhost' not in i and '::1' not in i])
+        hosts = [
+            i[10:].strip()
+            for i in f.readlines()
+            if not i.startswith("#") and "localhost" not in i and "::1" not in i
+        ]
+        # Equivalent to:
+        # for x in f.readlines():
+        #     if not x.startswith('#') and 'localhost' not in x and '::1' not in x:
+        #         hosts.append(x[10:].strip())
+        # If there are any empty strings in the list, remove them since for some reason, whitespace is stil in the list
+        hosts = [i for i in hosts if i != ""]
+        return hosts
+
+
+# General Utils
+
+
+# Load environment variables
+def load_env() -> dict:
+    load_dotenv(".env")
+    if not os.environ.get("CLOUDFLARE_TOKEN") and not os.environ.get(
+        "CLOUDFLARE_ACCOUNT_ID"
+    ):
+        load_dotenv(".envrc")
+    if not os.environ.get("CLOUDFLARE_TOKEN") or not os.environ.get(
+        "CLOUDFLARE_ACCOUNT_ID"
+    ):
+        print(
+            "No environment variables found. Please create a .env file or .envrc file"
+        )
+        exit()
+    else:
+        return {
+            "CLOUDFLARE_TOKEN": os.environ.get("CLOUDFLARE_TOKEN"),
+            "CLOUDFLARE_ACCOUNT_ID": os.environ.get("CLOUDFLARE_ACCOUNT_ID"),
+        }
+
+
+def get_lists() -> dict:
+    url = f"https://api.cloudflare.com/client/v4/accounts/{ACCOUNT_ID}/gateway/lists"
+    headers = {
+        "Authorization": f"Bearer {TOKEN}",
+        "Content-Type": "application/json",
+    }
+    response = requests.get(url, headers=headers, timeout=10)
+    if response.status_code != 200:
+        print(f"Error getting lists: {response.text}")
+    return response.json()["result"]
+
+
+def filter_adblock_lists(lists: dict) -> dict:
+    adblock_lists = []
+    for lst in lists:
+        if lst["name"].startswith("adblock-list") and lst["type"] == "DOMAIN":
+            adblock_lists.append(lst)
+    return adblock_lists
+
+
+def get_gateway_rules() -> dict:
+    url = f"https://api.cloudflare.com/client/v4/accounts/{ACCOUNT_ID}/gateway/rules"
+    headers = {
+        "Authorization": f"Bearer {TOKEN}",
+        "Content-Type": "application/json",
+    }
+    response = requests.get(url, headers=headers, timeout=10)
+    if response.status_code != 200:
+        print(f"Error getting lists: {response.text}")
+    return response.json()["result"]
+
+
+TOKEN = load_env()["CLOUDFLARE_TOKEN"]
+ACCOUNT_ID = load_env()["CLOUDFLARE_ACCOUNT_ID"]