diff --git a/src/color/mod.rs b/src/color.rs
similarity index 96%
rename from src/color/mod.rs
rename to src/color.rs
index 2c14363..523211d 100644
--- a/src/color/mod.rs
+++ b/src/color.rs
@@ -1,5 +1,4 @@
 use crossterm::style::Color;
-use crossterm::style::Color::*;
 
 /// A collection of colors.
 pub trait ColorSampler {
@@ -31,6 +30,7 @@ impl ColorSampler for SimpleColorSampler {
 
 #[cfg(test)]
 mod test {
+    use crossterm::style::Color::*;
     use super::*;
 
     #[test]
diff --git a/src/main.rs b/src/main.rs
index 55b128f..f6b4bcf 100644
--- a/src/main.rs
+++ b/src/main.rs
@@ -1,13 +1,17 @@
+use std::io::stdout;
 use anyhow::Error;
 use clap::Parser;
 use clap::ArgEnum;
 use crossterm::style::Color::*;
 use crate::animation::Animation;
 use crate::animation::circle::CircleAnimation;
+use crate::char::SimpleCharSampler;
 use crate::color::{ColorSampler, SimpleColorSampler};
 use crate::fill::circle::CircleFillMode;
 use crate::fill::FillMode;
 use crate::fill::level::LevelFillMode;
+use crate::sampler::ComposedSampler;
+use crate::surface::WriteSurface;
 use crate::vec::Vector;
 
 mod color;
@@ -70,6 +74,10 @@ fn main() -> Result<(), Error> {
     let animation = create_animation(args.animation[0], size);
     let fill = create_fill(args.fill[0], size);
     let color = create_color(args.color[0]);
+    let char = Box::new(SimpleCharSampler::new(args.chars));
+
+    let _ = Box::new(ComposedSampler::new(animation, fill, color, char));
+    let _ = Box::new(WriteSurface::new(stdout(), width, height));
 
     Ok(())
 }
diff --git a/src/vec.rs b/src/vec.rs
index b4a8d09..b5f1d8e 100644
--- a/src/vec.rs
+++ b/src/vec.rs
@@ -8,9 +8,7 @@ pub struct Vector {
 }
 
 impl Vector {
-    pub const ZERO: Vector = Vector::new(0.0, 0.0);
-
-    pub const fn new(x: f32, y: f32) -> Self {
+    pub fn new(x: f32, y: f32) -> Self {
         Self { x, y }
     }