diff --git a/.gitignore b/.gitignore
index 0daec5c..371272d 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,22 +1,6 @@
-#
-# Licensed to the Apache Software Foundation (ASF) under one
-# or more contributor license agreements.  See the NOTICE file
-# distributed with this work for additional information
-# regarding copyright ownership.  The ASF licenses this file
-# to you under the Apache License, Version 2.0 (the
-# "License"); you may not use this file except in compliance
-# with the License.  You may obtain a copy of the License at
-#
-# http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing,
-# software distributed under the License is distributed on an
-# "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
-#  KIND, either express or implied.  See the License for the
-# specific language governing permissions and limitations
-# under the License.
 
 .DS_Store
+.gradle/
 
 # Generated by package manager
 node_modules/
@@ -46,4 +30,4 @@ package-lock.json
 *.synctex.gz
 *.fdb_latexmk
 *.fls
-*.ipynb_checkpoints*
\ No newline at end of file
+*.ipynb_checkpoints*
diff --git a/config.xml b/config.xml
index ce54cfa..64a6b84 100644
--- a/config.xml
+++ b/config.xml
@@ -16,5 +16,8 @@
     <platform name="electron">
         <icon src="resources/icon.png" width="512" height="512" />
     </platform>
+    <icon src="resources/icon.png" />
+
+    <preference name="ZoomControls" value="true" />
 
 </widget>
diff --git a/env.sh b/env.sh
new file mode 100755
index 0000000..8c35b5e
--- /dev/null
+++ b/env.sh
@@ -0,0 +1,12 @@
+#!/bin/sh
+
+export ANDROID_HOME="$HOME/Android/Sdk"
+export ANDROID_SDK_ROOT="$HOME/Android/Sdk"
+export PATH="$ANDROID_HOME/cmdline-tools/latest/bin:$PATH"
+export PATH="$ANDROID_HOME/platform-tools:$PATH"
+export PATH="$ANDROID_HOME/emulator:$PATH"
+
+# Isolar o cache do Gradle para evitar conflitos.
+export GRADLE_USER_HOME=$(pwd)/.gradle
+
+cordova run android
diff --git a/shell.nix b/shell.nix
new file mode 100644
index 0000000..19e749d
--- /dev/null
+++ b/shell.nix
@@ -0,0 +1,22 @@
+{ pkgs ? import <nixpkgs> {} }:
+
+ pkgs.mkShell {
+   # Nome do ambiente
+   name = "cordova-deps-shell";
+
+   # Lista de pacotes a serem instalados. Nada mais.
+   # O Nix garantirá que 'node', 'cordova', 'gradle' e 'java'
+   # estejam disponíveis no seu PATH quando você entrar no shell.
+   buildInputs = with pkgs; [
+     nodejs
+     cordova
+     gradle
+     jdk
+   ];
+
+   # Mensagem simples para confirmar que você está no ambiente certo.
+   shellHook = ''
+     echo "Ambiente Nix com dependências do Cordova ativado."
+     echo "Execute 'source ./env.sh' para configurar o Android SDK."
+   '';
+ }
diff --git a/www/index.css b/www/index.css
index d871704..f9d4e50 100644
--- a/www/index.css
+++ b/www/index.css
@@ -12,8 +12,9 @@
 }
 
 body {
+    width: 800px;
     font-family: "Poppins", sans-serif;
-    margin: 0;
+    margin: 0 auto;
     padding: 20px;
     text-align: center; /* Centraliza o texto da página */
     background-image: linear-gradient(-45deg, var(--bg-start), var(--bg-end));
diff --git a/www/index.html b/www/index.html
index 3fb1053..c124531 100644
--- a/www/index.html
+++ b/www/index.html
@@ -6,7 +6,7 @@
     <meta http-equiv="x-ua-compatible" content="ie=edge" />
     <title>BioLab Parameter Explorer</title>
     <meta name="description" content="" />
-    <meta name="viewport" content="width=800, initial-scale=1" />
+    <meta name="viewport" content="width=800, initial-scale=1, user-scalable=yes" />
 
     <link
       rel="stylesheet"