diff --git a/shell.nix b/shell.nix
index 3d1aed4..f5fd699 100644
--- a/shell.nix
+++ b/shell.nix
@@ -4,11 +4,10 @@ in
     with pkgs;
     mkShell {
         buildInputs = [
-            cargo
-            rustc
-            rustfmt
-            rls
-            protobuf
+            pkgs.cargo
+            pkgs.rustc
+            pkgs.rustfmt
+            pkgs.rls
         ];
 
         RUST_SRC_PATH= "${pkgs.rust.packages.stable.rustPlatform.rustLibSrc}";
diff --git a/src/main.rs b/src/main.rs
index 5e3d6d7..6bb4ca6 100644
--- a/src/main.rs
+++ b/src/main.rs
@@ -3,14 +3,12 @@ pub mod util;
 use util::lights::*;
 use std::sync::RwLock;
 use std::thread;
-use candela::Pixel;
 
 
 pub const LED_SIZE: usize = 450;
 
 fn main() {
-    let mut p: Pixel = [0, 0, 0, 0];
-    let lock = RwLock::new([p; LED_SIZE]);
+    let lock = RwLock::new([Color {r: 0, g: 0, b: 0}; LED_SIZE]);
     thread::spawn(move || loop {
         let lights = lock.read().unwrap();
         run_lights(&lights);