diff --git a/Dockerfile b/Dockerfile
index 7e8d072..54d1fd1 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -24,6 +24,8 @@ RUN apk add --no-cache tini
 # Set the working directory inside the container
 WORKDIR /app
 
+ENV MIX_ENV=prod
+
 RUN mkdir output/
 RUN chmod 777 output/
 
diff --git a/lib/binoculo/args.ex b/lib/binoculo/args.ex
index 3dd2c2c..092ddd9 100644
--- a/lib/binoculo/args.ex
+++ b/lib/binoculo/args.ex
@@ -7,6 +7,45 @@ defmodule Binoculo.Args do
 
   def parse_args(argv) do
     version = Util.version()
+    no_args = Enum.empty?(argv)
+    is_api = Enum.any?(argv, fn arg -> arg in ["--server", "-s"] end)
+
+    host_notation_config = [
+      value_name: "host_notation",
+      long: "--range",
+      help: "CIDR or IP range: 192.168.1.0/24 or 192.168.1.0..192.168.1.255",
+      parser: fn notation ->
+        case Util.parse_range_or_cidr_notation(notation) do
+          {:error, _} -> {:error, "invalid cidr or notation"}
+          {:ok, _} -> {:ok, notation}
+        end
+      end,
+      required:
+        if no_args or is_api do
+          false
+        else
+          true
+        end
+    ]
+
+    port_config = [
+      value_name: "port(s)",
+      short: "-p",
+      long: "--port",
+      help: "Port(s) to scan: 80,443,8080 or 80-8080 or 21,80-8080",
+      parser: fn port ->
+        case Util.parse_ports_notation(port) do
+          {:error, _} -> {:error, "invalid port(s)"}
+          {:ok, port_parsed} -> {:ok, port_parsed}
+        end
+      end,
+      required:
+        if no_args or is_api do
+          false
+        else
+          true
+        end
+    ]
 
     optimus =
       Optimus.new!(
@@ -31,29 +70,8 @@ defmodule Binoculo.Args do
           ]
         ],
         options: [
-          host_notation: [
-            value_name: "host_notation",
-            long: "--range",
-            help: "CIDR or IP range: 192.168.1.0/24 or 192.168.1.0..192.168.1.255",
-            parser: fn notation ->
-              case Util.parse_range_or_cidr_notation(notation) do
-                {:error, _} -> {:error, "invalid cidr or notation"}
-                {:ok, _} -> {:ok, notation}
-              end
-            end
-          ],
-          ports: [
-            value_name: "port(s)",
-            short: "-p",
-            long: "--port",
-            help: "Port(s) to scan: 80,443,8080 or 80-8080 or 21,80-8080",
-            parser: fn port ->
-              case Util.parse_ports_notation(port) do
-                {:error, _} -> {:error, "invalid port(s)"}
-                {:ok, port_parsed} -> {:ok, port_parsed}
-              end
-            end
-          ],
+          host_notation: host_notation_config,
+          ports: port_config,
           output: [
             value_name: "output",
             short: "-o",
@@ -66,7 +84,8 @@ defmodule Binoculo.Args do
               with {:ok, _file} <- File.open("output/#{output}", [:append]) do
                 {:ok, output}
               end
-            end
+            end,
+            default: "output.txt"
           ],
           write: [
             value_name: "write",
diff --git a/mix.exs b/mix.exs
index e8d7992..b9a1f1a 100644
--- a/mix.exs
+++ b/mix.exs
@@ -5,7 +5,7 @@ defmodule Binoculo.MixProject do
     [
       app: :binoculo,
       version: "1.3.0",
-      elixir: "~> 1.18",
+      elixir: "~> 1.17",
       start_permanent: Mix.env() == :prod,
       deps: deps(),
       test_coverage: [