diff --git a/pulse-ui/src/layout.rs b/pulse-ui/src/layout.rs
index 44716e7..f30f424 100644
--- a/pulse-ui/src/layout.rs
+++ b/pulse-ui/src/layout.rs
@@ -1,17 +1,4 @@
-#[derive(Debug, Clone, Copy)]
-pub enum Size {
-    Fixed(u16),
-    Flex(u16),
-    Percent(u16),
-}
-
-#[derive(Debug, Clone, Copy)]
-pub struct Rect {
-    pub x: u16,
-    pub y: u16,
-    pub width: u16,
-    pub height: u16,
-}
+use crate::unit::{Rect, Size};
 
 #[derive(Debug, Clone)]
 pub enum LayoutItem {
@@ -91,37 +78,6 @@ impl LayoutItem {
     }
 }
 
-impl Size {
-    pub fn get_fixed(&self, alloc: u16) -> u16 {
-        match self {
-            Self::Fixed(v) => *v,
-            Self::Percent(v) => alloc * (*v) / 100,
-            Self::Flex(_) => 0,
-        }
-    }
-
-    pub fn get_flex(&self) -> u16 {
-        match self {
-            Self::Flex(f) => *f,
-            _ => 0,
-        }
-    }
-
-    pub fn get(&self, alloc: u16, remaining: u16, total_weight: u16) -> u16 {
-        match self {
-            Self::Fixed(v) => *v,
-            Self::Percent(v) => alloc * (*v) / 100,
-            Self::Flex(v) => {
-                if total_weight == 0 {
-                    0
-                } else {
-                    remaining * v / total_weight
-                }
-            }
-        }
-    }
-}
-
 impl Rect {
     pub fn allocate(&self, layout: &LayoutItem) -> Allocation {
         let mut widget_alloc = Vec::new();
diff --git a/pulse-ui/src/lib.rs b/pulse-ui/src/lib.rs
index dd64619..c06e713 100644
--- a/pulse-ui/src/lib.rs
+++ b/pulse-ui/src/lib.rs
@@ -1 +1,4 @@
 pub mod layout;
+pub mod render;
+pub mod widget;
+pub mod unit;
diff --git a/pulse-ui/src/render.rs b/pulse-ui/src/render.rs
new file mode 100644
index 0000000..168eb00
--- /dev/null
+++ b/pulse-ui/src/render.rs
@@ -0,0 +1,51 @@
+use std::fmt::Display;
+
+use crate::unit::{Point, Rect};
+
+pub enum Instr {
+    DrawText(Point, String),
+    DrawOutline(Rect),
+}
+
+pub struct RenderScope {
+    pub rect: Rect,
+    draw_instructions: Vec<Instr>,
+}
+
+impl RenderScope {
+    pub fn draw_text<P: Into<Point>, T: Display>(&mut self, at: P, text: T) {
+        self.draw_instructions
+            .push(Instr::DrawText(at.into(), text.to_string()));
+    }
+
+    pub fn draw_outline<P: Into<Point>>(&mut self, rect: Rect) {
+        self.draw_instructions.push(Instr::DrawOutline(rect));
+    }
+}
+
+impl RenderScope {
+    pub fn new(rect: Rect) -> Self {
+        Self {
+            rect,
+            draw_instructions: Vec::new(),
+        }
+    }
+}
+
+impl From<(u16, u16)> for Point {
+    fn from(value: (u16, u16)) -> Self {
+        Self {
+            x: value.0,
+            y: value.1,
+        }
+    }
+}
+
+impl From<Rect> for Point {
+    fn from(value: Rect) -> Self {
+        Self {
+            x: value.x,
+            y: value.y,
+        }
+    }
+}
diff --git a/pulse-ui/src/unit.rs b/pulse-ui/src/unit.rs
new file mode 100644
index 0000000..83ff31d
--- /dev/null
+++ b/pulse-ui/src/unit.rs
@@ -0,0 +1,51 @@
+#[derive(Debug, Clone, Copy)]
+pub struct Point {
+    pub x: u16,
+    pub y: u16,
+}
+
+#[derive(Debug, Clone, Copy)]
+pub enum Size {
+    Fixed(u16),
+    Flex(u16),
+    Percent(u16),
+}
+
+#[derive(Debug, Clone, Copy)]
+pub struct Rect {
+    pub x: u16,
+    pub y: u16,
+    pub width: u16,
+    pub height: u16,
+}
+
+impl Size {
+    pub fn get_fixed(&self, alloc: u16) -> u16 {
+        match self {
+            Self::Fixed(v) => *v,
+            Self::Percent(v) => alloc * (*v) / 100,
+            Self::Flex(_) => 0,
+        }
+    }
+
+    pub fn get_flex(&self) -> u16 {
+        match self {
+            Self::Flex(f) => *f,
+            _ => 0,
+        }
+    }
+
+    pub fn get(&self, alloc: u16, remaining: u16, total_weight: u16) -> u16 {
+        match self {
+            Self::Fixed(v) => *v,
+            Self::Percent(v) => alloc * (*v) / 100,
+            Self::Flex(v) => {
+                if total_weight == 0 {
+                    0
+                } else {
+                    remaining * v / total_weight
+                }
+            }
+        }
+    }
+}
diff --git a/pulse-ui/src/widget.rs b/pulse-ui/src/widget.rs
new file mode 100644
index 0000000..081d857
--- /dev/null
+++ b/pulse-ui/src/widget.rs
@@ -0,0 +1,5 @@
+use crate::render::RenderScope;
+
+pub trait Widget {
+    fn render(&self, scope: &mut RenderScope);
+}