diff --git a/flake.nix b/flake.nix
index 9c15d8d..5dcb414 100644
--- a/flake.nix
+++ b/flake.nix
@@ -23,8 +23,10 @@
         pkgs.mkShell {
           name = "ld-tools-devshell";
           buildInputs = [
-            pkgs.pkg-config
+            pkgs.glade
+            pkgs.gtk4
             pkgs.openssl
+            pkgs.pkg-config
             rust
           ];
         };
diff --git a/hex-grid/Cargo.lock b/hex-grid/Cargo.lock
new file mode 100644
index 0000000..a8315b9
--- /dev/null
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diff --git a/hex-grid/Cargo.toml b/hex-grid/Cargo.toml
new file mode 100644
index 0000000..dae2b5f
--- /dev/null
+++ b/hex-grid/Cargo.toml
@@ -0,0 +1,17 @@
+[package]
+name = "hex-grid"
+version = "0.1.0"
+edition = "2021"
+
+# See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
+
+[dependencies]
+cairo-rs = "0.16"
+gio = "0.16"
+glib = "0.16"
+gtk = { version = "0.5", package = "gtk4" }
+coordinates = { path = "../coordinates" }
+image = { version = "0.24" }
+
+[build-dependencies]
+glib-build-tools = "0.16"
diff --git a/hex-grid/build.rs b/hex-grid/build.rs
new file mode 100644
index 0000000..4c6ea61
--- /dev/null
+++ b/hex-grid/build.rs
@@ -0,0 +1,7 @@
+fn main() {
+    glib_build_tools::compile_resources(
+        "resources",
+        "resources/resources.gresources.xml",
+        "com.luminescent-dreams.hex-grid.gresource",
+    );
+}
diff --git a/hex-grid/resources/main.glade b/hex-grid/resources/main.glade
new file mode 100644
index 0000000..1b7442b
--- /dev/null
+++ b/hex-grid/resources/main.glade
@@ -0,0 +1,99 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<interface>
+  <template class="HexGridWindow" parent="GtkApplicationWindow">
+    <property name="can-focus">False</property>
+    <child>
+      <object class="GtkBox">
+        <property name="visible">True</property>
+        <property name="can-focus">False</property>
+        <property name="spacing">8</property>
+        <child>
+          <object class="GtkDrawingArea" id="drawing_area">
+            <property name="width-request">1024</property>
+            <property name="height-request">768</property>
+            <property name="visible">True</property>
+            <property name="can-focus">False</property>
+            <property name="margin-start">8</property>
+            <property name="margin-end">8</property>
+            <property name="margin-top">8</property>
+            <property name="margin-bottom">8</property>
+            <property name="hexpand">True</property>
+          </object>
+        </child>
+        <child>
+          <object class="GtkBox">
+            <property name="width-request">100</property>
+            <property name="visible">True</property>
+            <property name="can-focus">False</property>
+            <property name="margin-start">4</property>
+            <property name="margin-end">4</property>
+            <property name="margin-top">4</property>
+            <property name="margin-bottom">4</property>
+            <property name="orientation">vertical</property>
+            <property name="spacing">8</property>
+            <child>
+              <object class="GtkBox">
+                <property name="visible">True</property>
+                <property name="can-focus">False</property>
+                <property name="hexpand">True</property>
+                <property name="spacing">8</property>
+                <property name="homogeneous">True</property>
+                <child>
+                  <object class="GtkLabel">
+                    <property name="visible">True</property>
+                    <property name="can-focus">False</property>
+                    <property name="label" translatable="yes">Canvas Address</property>
+                  </object>
+                </child>
+                <child>
+                  <object class="GtkLabel" id="canvas_address">
+                    <property name="visible">True</property>
+                    <property name="can-focus">False</property>
+                    <property name="margin-start">4</property>
+                    <property name="margin-end">4</property>
+                    <property name="margin-top">4</property>
+                    <property name="margin-bottom">4</property>
+                    <property name="label" translatable="yes">-----</property>
+                  </object>
+                </child>
+              </object>
+          </child>
+          <child>
+              <object class="GtkBox">
+                <property name="visible">True</property>
+                <property name="can-focus">False</property>
+                <property name="hexpand">True</property>
+                <property name="spacing">8</property>
+                <property name="homogeneous">True</property>
+                <child>
+                  <object class="GtkLabel">
+                    <property name="visible">True</property>
+                    <property name="can-focus">False</property>
+                    <property name="label" translatable="yes">Hexagon Address</property>
+                  </object>
+                </child>
+                <child>
+                  <object class="GtkLabel" id="hex_address">
+                    <property name="visible">True</property>
+                    <property name="can-focus">False</property>
+                    <property name="margin-start">4</property>
+                    <property name="margin-end">4</property>
+                    <property name="margin-top">4</property>
+                    <property name="margin-bottom">4</property>
+                    <property name="label" translatable="yes">-----</property>
+                  </object>
+                </child>
+              </object>
+            </child>
+            <child>
+              <placeholder/>
+            </child>
+            <child>
+              <placeholder/>
+            </child>
+          </object>
+        </child>
+      </object>
+    </child>
+  </template>
+</interface>
diff --git a/hex-grid/resources/map.txt b/hex-grid/resources/map.txt
new file mode 100644
index 0000000..25a3e5c
--- /dev/null
+++ b/hex-grid/resources/map.txt
@@ -0,0 +1,37 @@
+[0, 0] m
+[-3, 2] sw
+[1, -2] g
+[0, 3] g
+[2, 1] g
+[0, -2] g
+[-1, 0] g
+[-2, 2] g
+[3, -3] sw
+[1, 2] g
+[1, 1] d
+[2, -2] b
+[-3, 0] sw
+[-2, 0] g
+[2, -3] sw
+[-1, -1] g
+[-2, 3] sw
+[1, -3] sw
+[-3, 3] sw
+[-1, 1] g
+[1, 0] g
+[0, 1] g
+[-1, 2] s
+[1, -1] g
+[2, -1] g
+[0, -3] sw
+[0, 2] g
+[3, 0] sw
+[-1, 3] sw
+[0, -1] g
+[3, -1] sw
+[-3, 1] sw
+[2, 0] g
+[-2, 1] g
+[3, -2] sw
+[-1, -2] sw
+[-2, -1] dw
diff --git a/hex-grid/resources/resources.gresources.xml b/hex-grid/resources/resources.gresources.xml
new file mode 100644
index 0000000..30f14bd
--- /dev/null
+++ b/hex-grid/resources/resources.gresources.xml
@@ -0,0 +1,8 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<gresources>
+    <gresource prefix="/com/luminescent-dreams/hex-grid/">
+        <file>main.glade</file>
+        <file>terrain.ppm</file>
+        <file>map.txt</file>
+    </gresource>
+</gresources>
diff --git a/hex-grid/resources/terrain.ppm b/hex-grid/resources/terrain.ppm
new file mode 100644
index 0000000..d9f739b
Binary files /dev/null and b/hex-grid/resources/terrain.ppm differ
diff --git a/hex-grid/src/main.rs b/hex-grid/src/main.rs
new file mode 100644
index 0000000..1a1d860
--- /dev/null
+++ b/hex-grid/src/main.rs
@@ -0,0 +1,333 @@
+use cairo::{Context, Path};
+use coordinates::{hex_map::parse_data, AxialAddr};
+use gio::resources_lookup_data;
+use glib::{subclass::InitializingObject, Object};
+use gtk::{
+    gdk_pixbuf::Pixbuf, gio, prelude::*, subclass::prelude::*, Application, CompositeTemplate,
+    DrawingArea, Label,
+};
+use image::io::Reader as ImageReader;
+use std::{cell::RefCell, io::Cursor, rc::Rc};
+
+const APP_ID: &'static str = "com.luminescent-dreams.hex-grid";
+const HEX_RADIUS: f64 = 50.;
+const MAP_RADIUS: usize = 3;
+const DRAWING_ORIGIN: (f64, f64) = (1024. / 2., 768. / 2.);
+
+#[derive(Clone, Debug)]
+enum Tile {
+    Empty,
+    Mountain,
+    Grasslands,
+    ShallowWater,
+    DeepWater,
+    Badlands,
+    Desert,
+    Swamp,
+}
+
+impl Tile {
+    fn color(&self) -> (f64, f64, f64) {
+        match self {
+            Self::Empty => (0., 0., 0.),
+            Self::Mountain => (0.5, 0.5, 0.5),
+            Self::Grasslands => (0., 1., 0.),
+            Self::ShallowWater => (0.5, 0.5, 1.),
+            Self::DeepWater => (0., 0., 1.),
+            Self::Badlands => (0.5, 0.25, 0.),
+            Self::Desert => (1., 1., 0.),
+            Self::Swamp => (0., 0.25, 0.),
+        }
+    }
+}
+
+impl Default for Tile {
+    fn default() -> Self {
+        Self::Empty
+    }
+}
+
+impl From<&str> for Tile {
+    fn from(s: &str) -> Self {
+        match s {
+            "m" => Self::Mountain,
+            "g" => Self::Grasslands,
+            "sw" => Self::ShallowWater,
+            "dw" => Self::DeepWater,
+            "b" => Self::Badlands,
+            "d" => Self::Desert,
+            "s" => Self::Swamp,
+            _ => Self::Empty,
+        }
+    }
+}
+
+impl From<String> for Tile {
+    fn from(s: String) -> Self {
+        Self::from(s.as_ref())
+    }
+}
+
+fn main() {
+    gio::resources_register_include!("com.luminescent-dreams.hex-grid.gresource")
+        .expect("Failed to register resources");
+
+    let app = Application::builder().application_id(APP_ID).build();
+
+    app.connect_activate(|app| {
+        let window = HexGridWindow::new(app);
+        window.present();
+    });
+
+    app.run();
+}
+
+#[derive(CompositeTemplate, Default)]
+#[template(resource = "/com/luminescent-dreams/hex-grid/main.glade")]
+pub struct HexGridWindowPrivate {
+    #[template_child]
+    pub drawing_area: TemplateChild<DrawingArea>,
+    #[template_child]
+    pub hex_address: TemplateChild<Label>,
+    #[template_child]
+    pub canvas_address: TemplateChild<Label>,
+
+    current_coordinate: Rc<RefCell<Option<AxialAddr>>>,
+}
+
+#[glib::object_subclass]
+impl ObjectSubclass for HexGridWindowPrivate {
+    const NAME: &'static str = "HexGridWindow";
+    type Type = HexGridWindow;
+    type ParentType = gtk::ApplicationWindow;
+
+    fn class_init(c: &mut Self::Class) {
+        c.bind_template();
+    }
+
+    fn instance_init(obj: &InitializingObject<Self>) {
+        obj.init_template();
+    }
+}
+
+impl ObjectImpl for HexGridWindowPrivate {
+    fn constructed(&self) {
+        self.parent_constructed();
+
+        let map_text_resource = resources_lookup_data(
+            "/com/luminescent-dreams/hex-grid/map.txt",
+            gio::ResourceLookupFlags::NONE,
+        )
+        .expect("map should be in the bundle")
+        .to_vec();
+
+        let hex_map = parse_data::<Tile>(String::from_utf8(map_text_resource).unwrap().lines());
+
+        let terrain_data = resources_lookup_data(
+            "/com/luminescent-dreams/hex-grid/terrain.ppm",
+            gio::ResourceLookupFlags::NONE,
+        )
+        .unwrap();
+        let reader = ImageReader::new(Cursor::new(terrain_data))
+            .with_guessed_format()
+            .unwrap();
+        let image = reader.decode().unwrap();
+
+        let image_deep_water = pixbuf_from_image_tile(image.clone().crop(0, 0, 100, 88));
+        let image_shallow_water = pixbuf_from_image_tile(image.clone().crop(100, 0, 100, 88));
+        let image_grasslands = pixbuf_from_image_tile(image.clone().crop(200, 0, 100, 88));
+        let image_desert = pixbuf_from_image_tile(image.clone().crop(300, 0, 100, 88));
+        let image_mountain = pixbuf_from_image_tile(image.clone().crop(0, 88, 100, 88));
+        let image_badlands = pixbuf_from_image_tile(image.clone().crop(100, 88, 100, 88));
+        let image_swamp = pixbuf_from_image_tile(image.clone().crop(0, 176, 100, 88));
+
+        /*
+        let image_pb = Pixbuf::from_bytes(
+            &glib::Bytes::from(image.as_bytes()),
+            gtk::gdk_pixbuf::Colorspace::Rgb,
+            false,
+            8,
+            image.width() as i32,
+            image.height() as i32,
+            image.to_rgb8().sample_layout().height_stride as i32,
+        );
+        */
+
+        let motion_controller = gtk::EventControllerMotion::new();
+        {
+            let canvas_address = self.canvas_address.clone();
+            let hex_address = self.hex_address.clone();
+            let c = self.current_coordinate.clone();
+            motion_controller.connect_motion(move |_, x, y| {
+                let norm_x = x - DRAWING_ORIGIN.0;
+                let norm_y = y - DRAWING_ORIGIN.1;
+                let q = (2. / 3. * norm_x) / HEX_RADIUS;
+                let r = (-1. / 3. * norm_x + (3. as f64).sqrt() / 3. * norm_y) / HEX_RADIUS;
+
+                let (q, r) = axial_round(q, r);
+                let coordinate = AxialAddr::new(q, r);
+                canvas_address.set_label(&format!("{:.0} {:.0}", x, y));
+
+                if coordinate.distance(&AxialAddr::origin()) > MAP_RADIUS {
+                    hex_address.set_label(&format!("-----"));
+                    *c.borrow_mut() = None;
+                } else {
+                    hex_address.set_label(&format!("{:.0} {:.0}", coordinate.q(), coordinate.r()));
+                    *c.borrow_mut() = Some(coordinate);
+                }
+            });
+        }
+
+        {
+            self.drawing_area.set_draw_func(move |_, context, _, _| {
+                context.set_source_rgb(0., 0., 0.);
+                let _ = context.paint();
+
+                context.set_line_width(2.);
+
+                let clip_path = hexagon_path(context, 100., 88.);
+                context.set_source_pixbuf(&image_deep_water, 0., 0.);
+                context.append_path(&clip_path);
+                context.clip();
+                context.paint().expect("paint should succeed");
+
+                context.set_source_pixbuf(&image_shallow_water, 150., 0.);
+                context.paint().expect("paint should succeed");
+
+                context.set_source_pixbuf(&image_grasslands, 300., 0.);
+                context.paint().expect("paint should succeed");
+
+                context.set_source_pixbuf(&image_desert, 450., 0.);
+                context.paint().expect("paint should succeed");
+
+                context.set_source_pixbuf(&image_mountain, 0., 100.);
+                context.paint().expect("paint should succeed");
+
+                context.set_source_pixbuf(&image_badlands, 150., 100.);
+                context.paint().expect("paint should succeed");
+
+                context.set_source_pixbuf(&image_swamp, 0., 200.);
+                context.paint().expect("paint should succeed");
+                /*
+                for coordinate in vec![AxialAddr::origin()]
+                    .into_iter()
+                    .chain(AxialAddr::origin().addresses(MAP_RADIUS))
+                {
+                    let center_x =
+                        DRAWING_ORIGIN.0 + HEX_RADIUS * (3. / 2. * (coordinate.q() as f64));
+                    let center_y = DRAWING_ORIGIN.1
+                        + HEX_RADIUS
+                            * ((3. as f64).sqrt() / 2. * (coordinate.q() as f64)
+                                + (3. as f64).sqrt() * (coordinate.r() as f64));
+
+                    let tile = hex_map.get(&coordinate).unwrap();
+                    let color = tile.color();
+                    context.set_source_rgb(color.0, color.1, color.2);
+
+                    draw_hexagon(context, center_x, center_y, HEX_RADIUS);
+                    let _ = context.fill();
+                }
+                */
+            });
+        }
+        self.drawing_area.add_controller(&motion_controller);
+    }
+}
+
+impl WidgetImpl for HexGridWindowPrivate {}
+impl WindowImpl for HexGridWindowPrivate {}
+impl ApplicationWindowImpl for HexGridWindowPrivate {}
+
+glib::wrapper! {
+    pub struct HexGridWindow(ObjectSubclass<HexGridWindowPrivate>) @extends gtk::ApplicationWindow, gtk::Window, gtk::Widget,
+        @implements gtk::Accessible, gtk::Actionable, gtk::Buildable, gtk::ConstraintTarget;
+}
+
+impl HexGridWindow {
+    pub fn new(app: &Application) -> Self {
+        Object::builder().property("application", app).build()
+    }
+}
+
+fn draw_hexagon(context: &Context, center_x: f64, center_y: f64, radius: f64) {
+    let ul_x = center_x - radius;
+    let ul_y = center_y - (3. as f64).sqrt() * radius / 2.;
+    let points: Vec<(f64, f64)> = hexagon(radius * 2., (3. as f64).sqrt() * radius);
+    context.new_path();
+    context.move_to(ul_x + points[0].0, ul_y + points[0].1);
+    context.line_to(ul_x + points[1].0, ul_y + points[1].1);
+    context.line_to(ul_x + points[2].0, ul_y + points[2].1);
+    context.line_to(ul_x + points[3].0, ul_y + points[3].1);
+    context.line_to(ul_x + points[4].0, ul_y + points[4].1);
+    context.line_to(ul_x + points[5].0, ul_y + points[5].1);
+    context.close_path();
+}
+
+fn hexagon_path(context: &Context, width: f64, height: f64) -> Path {
+    context.new_path();
+    let points = hexagon(width, height);
+    context.move_to(points[0].0, points[0].1);
+    context.line_to(points[1].0, points[1].1);
+    context.line_to(points[2].0, points[2].1);
+    context.line_to(points[3].0, points[3].1);
+    context.line_to(points[4].0, points[4].1);
+    context.line_to(points[5].0, points[5].1);
+    context.copy_path().expect("to successfully copy a path")
+}
+
+fn hexagon(width: f64, height: f64) -> Vec<(f64, f64)> {
+    let center_x = width / 2.;
+    let center_y = height / 2.;
+    let radius = width / 2.;
+
+    vec![
+        (center_x + radius, center_y),
+        (
+            center_x + radius / 2.,
+            center_y + (3. as f64).sqrt() * radius / 2.,
+        ),
+        (
+            center_x - radius / 2.,
+            center_y + (3. as f64).sqrt() * radius / 2.,
+        ),
+        (center_x - radius, center_y),
+        (
+            center_x - radius / 2.,
+            center_y - (3. as f64).sqrt() * radius / 2.,
+        ),
+        (
+            center_x + radius / 2.,
+            center_y - (3. as f64).sqrt() * radius / 2.,
+        ),
+    ]
+}
+
+fn axial_round(q_f64: f64, r_f64: f64) -> (i32, i32) {
+    let s_f64 = -q_f64 - r_f64;
+    let mut q = q_f64.round();
+    let mut r = r_f64.round();
+    let s = s_f64.round();
+
+    let q_diff = (q - q_f64).abs();
+    let r_diff = (r - r_f64).abs();
+    let s_diff = (s - s_f64).abs();
+
+    if q_diff > r_diff && q_diff > s_diff {
+        q = -r - s;
+    } else if r_diff > s_diff {
+        r = -q - s;
+    }
+    unsafe { (q.to_int_unchecked::<i32>(), r.to_int_unchecked::<i32>()) }
+}
+
+fn pixbuf_from_image_tile(image: image::DynamicImage) -> Pixbuf {
+    Pixbuf::from_bytes(
+        &glib::Bytes::from(image.as_bytes()),
+        gtk::gdk_pixbuf::Colorspace::Rgb,
+        false,
+        8,
+        image.width() as i32,
+        image.height() as i32,
+        image.to_rgb8().sample_layout().height_stride as i32,
+    )
+}