diff --git a/Cargo.lock b/Cargo.lock
index cd3d3c5..d6cbc55 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -2,6 +2,12 @@
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+]
+
+[[package]]
+name = "ucd-trie"
+version = "0.1.3"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "56dee185309b50d1f11bfedef0fe6d036842e3fb77413abef29f8f8d1c5d4c1c"
+
+[[package]]
+name = "unicode-ident"
+version = "1.0.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "5bd2fe26506023ed7b5e1e315add59d6f584c621d037f9368fea9cfb988f368c"
+
+[[package]]
+name = "version-compare"
+version = "0.1.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "fe88247b92c1df6b6de80ddc290f3976dbdf2f5f5d3fd049a9fb598c6dd5ca73"
+
+[[package]]
+name = "version_check"
+version = "0.9.4"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "49874b5167b65d7193b8aba1567f5c7d93d001cafc34600cee003eda787e483f"
+
 [[package]]
 name = "winapi"
 version = "0.3.9"
diff --git a/Cargo.toml b/Cargo.toml
index 0535058..d430122 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -8,4 +8,5 @@ edition = "2021"
 [dependencies]
 libusb = "0.3.0"
 colored = "2.0.0"
-json = "0.12.4"
\ No newline at end of file
+json = "0.12.4"
+gtk = { version = "0.4.8", package = "gtk4" }
\ No newline at end of file
diff --git a/src/main.rs b/src/main.rs
index 1626a92..f62dfd9 100644
--- a/src/main.rs
+++ b/src/main.rs
@@ -5,6 +5,9 @@ extern crate json;
 use colored::Colorize;
 use std::path::Path;
 
+use gtk::prelude::*;
+use gtk::{Application, ApplicationWindow, Button, ListBox};
+
 #[derive(Debug)]
 struct KeyboardLighting {
     lighting_type: String,
@@ -85,6 +88,7 @@ fn main() {
 
     println!("{:#?}", config);
 
+    /*
     let context = libusb::Context::new().unwrap();
 
     for device in context.devices().unwrap().iter() {
@@ -128,4 +132,54 @@ fn main() {
         }
     }
 
+    */
+    let app = Application::builder().application_id("org.sebaweb.keyboard-control-software").build();
+
+    app.connect_activate(build_ui);
+
+    app.run();
 }
+
+fn build_ui(app: &Application) {
+
+    let config: KeyboardConfig = parse_config(&Path::new("numpad_config.json"));
+
+
+    let flow_box = gtk::FlowBox::builder()
+        .max_children_per_line(config.layout.cols.into())
+        .build();
+
+    let color_chooser = gtk::ColorChooserWidget::builder()
+        .build();
+
+    for i in 0..config.layout.keys.len() {
+        let button = Button::builder()
+            .label(&config.layout.keys[i])
+            .focusable(true)
+            .build();
+
+        button.connect_clicked(move |button| {
+            println!("The label of the button is {}", button.label().unwrap());
+        });
+ 
+        flow_box.insert(&button, i.try_into().unwrap());
+    }
+
+
+    let paned = gtk::Paned::builder()
+        .orientation(gtk::Orientation::Horizontal)
+        .start_child(&flow_box)
+        .end_child(&color_chooser)
+        .resize_end_child(false)
+        .build();
+
+    let window = ApplicationWindow::builder()
+        .application(app)
+        .title("Keyboard Control Software")
+        .default_width(1024)
+        .default_height(900)
+        .child(&paned)
+        .build();
+
+    window.present();
+}
\ No newline at end of file