diff --git a/src/keys.rs b/src/keys.rs
index b58a50b..b77f885 100644
--- a/src/keys.rs
+++ b/src/keys.rs
@@ -1,5 +1,16 @@
+// TODO: Change this to snake case
+// Environment key for Database management
 pub const DBURL: &str = "DATABASE_URL";
 
+// Environment key for secret main key
+// Used for the icarus app
+pub const SECRET_MAIN_KEY: &str = "SECRET_MAIN_KEY"; 
+
+// Environment key for root directory for the icarus app
+pub const ROOT_DIRECTORY: &str = "ROOT_DIRECTORY";
+
 pub mod error {
     pub const ERROR: &str = "DATABASE_URL must be set in .env";
+    pub const SECRET_MAIN_KEY: &str = "SECRET_MAIN_KEY must not be set in environment file";
+    pub const ROOT_DIRECTORY: &str = "ROOT_DIRECTORY must not be set in environment file";
 }