diff --git a/.env.template b/.env.template
index 43cb7d9..d90bac7 100644
--- a/.env.template
+++ b/.env.template
@@ -11,4 +11,4 @@ THEME=""
 SUBREDDIT=""
 
 # Range is 0 -> 1
-OPACITY=""
+OPACITY=".9"
diff --git a/main.py b/main.py
index 8cc3c9a..b0a4c28 100644
--- a/main.py
+++ b/main.py
@@ -9,6 +9,8 @@ from video_creation.final_video import make_final_video
 from dotenv import load_dotenv
 import os
 
+REQUIRED_VALUES = ["REDDIT_CLIENT_ID","REDDIT_CLIENT_SECRET","REDDIT_USERNAME","REDDIT_PASSWORD", "OPACITY"]
+
 print_markdown(
     "### Thanks for using this tool! [Feel free to contribute to this project on GitHub!](https://lewismenelaws.com) If you have any questions, feel free to reach out to me on Twitter or submit a GitHub issue."
 )
diff --git a/video_creation/final_video.py b/video_creation/final_video.py
index 9db757e..0a2afb0 100644
--- a/video_creation/final_video.py
+++ b/video_creation/final_video.py
@@ -30,6 +30,11 @@ def make_final_video(number_of_clips):
         .resize(height=H)
         .crop(x1=1166.6, y1=0, x2=2246.6, y2=1920)
     )
+    try:
+        float(os.getenv("OPACITY"))
+    except:
+        print(f"Please ensure that OPACITY is set between 0 and 1 in your .env file")
+    configured = False
     # Gather all audio clips
     audio_clips = []
     for i in range(0, number_of_clips):