diff --git a/.gitignore b/.gitignore
index e20c59f..d59a07d 100644
--- a/.gitignore
+++ b/.gitignore
@@ -3,3 +3,5 @@ _build/
 /selenium-*.jar
 /gecko-*.tar.gz
 /geckodriver-*
+
+config/
diff --git a/README.md b/README.md
index 42592b6..7bb1e67 100644
--- a/README.md
+++ b/README.md
@@ -22,7 +22,7 @@ $ opam switch list
 ```
 
 ```sh
-$ opam install cohttp-lwt-unix tls-lwt
+$ opam install cohttp-lwt-unix tls-lwt dotenv
 ```
 
 ## Name history
diff --git a/bin/main.ml b/bin/main.ml
index 528e72f..e09b116 100644
--- a/bin/main.ml
+++ b/bin/main.ml
@@ -1,5 +1,8 @@
 open Pusk.Net
 open Pusk.Drivers
+open Pusk.Utils
+
+exception Any of string
 
 let start driver =
   let name_driver = prepare driver in
@@ -14,13 +17,26 @@ let stop (driver_process, session_id) =
 ;;
 
 let main session_id =
+  (* Load credentials *)
+  load_dotenv;
+  let username, password =
+    match Sys.getenv_opt "TWITTER_USERNAME", Sys.getenv_opt "TWITTER_PASSWORD" with
+    | Some u, Some p -> u, p
+    | None, None -> raise (Any "Username and password not set")
+    | None, Some _ -> raise (Any "Username not set")
+    | Some _, None -> raise (Any "Password not set")
+  in
+  (* Navigate to login page *)
   ignore (navigate "https://twitter.com/i/flow/login" session_id);
   (* Extra wait to be sure the page is loaded *)
-  Unix.sleep 5
+  Unix.sleep 5;
+  (* DEBUG *)
+  print_endline (fmt "%s:%s" username password)
 ;;
 
 let () =
   let data = start (Gecko "0.33.0") in
-  main (snd data);
+  (try main (snd data) with
+  | Any why -> print_endline why);
   stop data
 ;;
diff --git a/lib/dune b/lib/dune
index d3a429f..85d2a3b 100644
--- a/lib/dune
+++ b/lib/dune
@@ -1,4 +1,4 @@
 (library
  (name pusk)
  (modules utils drivers net json)
- (libraries cohttp-lwt-unix yojson))
+ (libraries cohttp-lwt-unix yojson dotenv))
diff --git a/lib/utils.ml b/lib/utils.ml
index 6fe97ea..0417f5e 100644
--- a/lib/utils.ml
+++ b/lib/utils.ml
@@ -1 +1,7 @@
 let fmt = Printf.sprintf
+
+let load_dotenv =
+  (* Load variables *)
+  let path = "config/.env" in
+  if Sys.file_exists path then Dotenv.export ~path ()
+;;