diff --git a/03_source/frontend/.env.example b/03_source/frontend/.env.example
new file mode 100644
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+++ b/03_source/frontend/.env.example
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+# Server url
+# Local server configuration at: https://docs.minimals.cc/mock-server/
+VITE_SERVER_URL=http://localhost:7272
+# VITE_SERVER_URL=https://api-dev-minimal-v630.pages.dev
+
+# Public resource directory
+VITE_ASSETS_DIR=
+
+# Mapbox
+VITE_MAPBOX_API_KEY=
+
+# Firebase
+VITE_FIREBASE_API_KEY=
+VITE_FIREBASE_AUTH_DOMAIN=
+VITE_FIREBASE_PROJECT_ID=
+VITE_FIREBASE_STORAGE_BUCKET=
+VITE_FIREBASE_MESSAGING_SENDER_ID=
+VITE_FIREBASE_APPID=
+
+# Aws
+VITE_AWS_AMPLIFY_USER_POOL_ID=
+VITE_AWS_AMPLIFY_USER_POOL_WEB_CLIENT_ID=
+VITE_AWS_AMPLIFY_REGION=
+
+# Auth0
+VITE_AUTH0_DOMAIN=
+VITE_AUTH0_CLIENT_ID=
+VITE_AUTH0_CALLBACK_URL=
+
+# Supabase
+VITE_SUPABASE_URL=https://prhsilyjzxbkufchywxt.supabase.co
+VITE_SUPABASE_ANON_KEY=eyJhbGciOiJIUzI1NiIsInR5cCI6IkpXVCJ9.eyJpc3MiOiJzdXBhYmFzZSIsInJlZiI6InByaHNpbHlqenhia3VmY2h5d3h0Iiwicm9sZSI6ImFub24iLCJpYXQiOjE3MzY2NjM5MTEsImV4cCI6MjA1MjIzOTkxMX0.UBvxEhKEMtsRuDWBSDTglfnupKf9fyPI9IvQBxS5F6U
+
+# Google Calendar
+GOOGLE_CLIENT_ID=463956183839-i7j5nt5rkpbm4npukg21vfnhav5vvgeh.apps.googleusercontent.com
+GOOGLE_CLIENT_SECRET=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
+GOOGLE_CALENDAR_API_KEY=AIzaSyDh4-SOuKTopXe45oDM9nQA7R4cNJ1So0c
+
+VITE_GOOGLE_CLIENT_ID=463956183839-i7j5nt5rkpbm4npukg21vfnhav5vvgeh.apps.googleusercontent.com
+VITE_GOOGLE_CALENDAR_API_KEY=AIzaSyDh4-SOuKTopXe45oDM9nQA7R4cNJ1So0c