diff --git a/bin/main.ml b/bin/main.ml
index f4ccb77..cca447b 100644
--- a/bin/main.ml
+++ b/bin/main.ml
@@ -1,66 +1,5 @@
-open Lwt.Syntax
-open Cohttp_lwt
-open Cohttp_lwt_unix
-
-let fmt = Printf.sprintf
-
-let rec download uri dest =
-  let* response, body = Client.get uri in
-  let status = Response.status response in
-  let code = Cohttp.Code.code_of_status status in
-  if Cohttp.Code.is_redirection code
-  then (
-    let headers = Response.headers response in
-    match Cohttp.Header.get headers "location" with
-    | Some url ->
-      let uri = Uri.of_string url in
-      let redirect_url = Uri.resolve "" uri uri in
-      download redirect_url dest
-    | None -> Lwt.fail_with "Redirect location not found")
-  else if Cohttp.Code.is_success code
-  then (
-    print_endline "Downloading...";
-    let stream = Body.to_stream body in
-    let res =
-      Lwt_io.with_file ~mode:Lwt_io.output dest (fun chan ->
-          Lwt_stream.iter_s (Lwt_io.write chan) stream)
-    in
-    let* () = res in
-    print_endline "Download done!";
-    Lwt.return_unit)
-  else
-    Lwt.fail_with
-      ("Failed to download file. HTTP status: " ^ Cohttp.Code.string_of_status status)
-;;
-
-let download_selenium version =
-  let url =
-    format_of_string
-      "https://github.com/SeleniumHQ/selenium/releases/download/selenium-%s/selenium-server-%s.jar"
-  in
-  download (Uri.of_string (fmt url version version)) (fmt "./selenium-%s.jar" version)
-;;
-
-let download_gecko_driver version output =
-  let url =
-    format_of_string
-      "https://github.com/mozilla/geckodriver/releases/download/v%s/geckodriver-v%s-linux64.tar.gz"
-  in
-  download (Uri.of_string (fmt url version version)) output
-;;
-
-let run_program_in_background program args =
-  let pid = Unix.fork () in
-  match pid with
-  | 0 ->
-    (* Child process *)
-    let dev_null = Unix.openfile "/dev/null" [ O_WRONLY ] 0o666 in
-    Unix.dup2 dev_null Unix.stdout;
-    Unix.dup2 dev_null Unix.stderr;
-    Unix.close dev_null;
-    Unix.execvp program (Array.of_list (program :: args))
-  | _ -> pid (* Parent process *)
-;;
+open Pusk.Utils
+open Pusk.Selenium_init
 
 let () =
   (* Selenium *)
diff --git a/lib/dune b/lib/dune
index 7e3ff31..069dba8 100644
--- a/lib/dune
+++ b/lib/dune
@@ -1,2 +1,4 @@
 (library
- (name pusk))
+ (name pusk)
+ (modules utils selenium_init)
+ (libraries cohttp-lwt-unix))
diff --git a/lib/selenium_init.ml b/lib/selenium_init.ml
new file mode 100644
index 0000000..f4e9fde
--- /dev/null
+++ b/lib/selenium_init.ml
@@ -0,0 +1,62 @@
+open Lwt.Syntax
+open Cohttp_lwt
+open Cohttp_lwt_unix
+open Utils
+
+let rec download uri dest =
+  let* response, body = Client.get uri in
+  let status = Response.status response in
+  let code = Cohttp.Code.code_of_status status in
+  if Cohttp.Code.is_redirection code
+  then (
+    let headers = Response.headers response in
+    match Cohttp.Header.get headers "location" with
+    | Some url ->
+      let uri = Uri.of_string url in
+      let redirect_url = Uri.resolve "" uri uri in
+      download redirect_url dest
+    | None -> Lwt.fail_with "Redirect location not found")
+  else if Cohttp.Code.is_success code
+  then (
+    print_endline "Downloading...";
+    let stream = Body.to_stream body in
+    let res =
+      Lwt_io.with_file ~mode:Lwt_io.output dest (fun chan ->
+          Lwt_stream.iter_s (Lwt_io.write chan) stream)
+    in
+    let* () = res in
+    print_endline "Download done!";
+    Lwt.return_unit)
+  else
+    Lwt.fail_with
+      ("Failed to download file. HTTP status: " ^ Cohttp.Code.string_of_status status)
+;;
+
+let download_selenium version =
+  let url =
+    format_of_string
+      "https://github.com/SeleniumHQ/selenium/releases/download/selenium-%s/selenium-server-%s.jar"
+  in
+  download (Uri.of_string (fmt url version version)) (fmt "./selenium-%s.jar" version)
+;;
+
+let download_gecko_driver version output =
+  let url =
+    format_of_string
+      "https://github.com/mozilla/geckodriver/releases/download/v%s/geckodriver-v%s-linux64.tar.gz"
+  in
+  download (Uri.of_string (fmt url version version)) output
+;;
+
+let run_program_in_background program args =
+  let pid = Unix.fork () in
+  match pid with
+  | 0 ->
+    (* Child process *)
+    let dev_null = Unix.openfile "/dev/null" [ O_WRONLY ] 0o666 in
+    Unix.dup2 dev_null Unix.stdout;
+    Unix.dup2 dev_null Unix.stderr;
+    Unix.close dev_null;
+    Unix.execvp program (Array.of_list (program :: args))
+  | _ -> pid (* Parent process *)
+;;
diff --git a/lib/utils.ml b/lib/utils.ml
new file mode 100644
index 0000000..6fe97ea
--- /dev/null
+++ b/lib/utils.ml
@@ -0,0 +1 @@
+let fmt = Printf.sprintf