diff --git a/.cargo/config.toml b/.cargo/config.toml
new file mode 100644
index 0000000..03f4879
--- /dev/null
+++ b/.cargo/config.toml
@@ -0,0 +1,2 @@
+[build]
+rustflags = ["-Ctarget-cpu=native"]
diff --git a/common/Cargo.toml b/common/Cargo.toml
index 4b13b2a..bac9a2b 100644
--- a/common/Cargo.toml
+++ b/common/Cargo.toml
@@ -3,7 +3,5 @@ name = "common"
 version = "0.1.0"
 edition = "2021"
 
-# See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
-
 [dependencies]
 nalgebra = "0.32.6"
diff --git a/goo_format/Cargo.toml b/goo_format/Cargo.toml
index a16e2b6..010a330 100644
--- a/goo_format/Cargo.toml
+++ b/goo_format/Cargo.toml
@@ -3,11 +3,9 @@ name = "goo_format"
 version = "0.1.0"
 edition = "2021"
 
-# See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
-
 [dependencies]
 anyhow = "1.0.86"
 clap = { version = "4.5.7", features = ["derive"] }
+image = "0.25.1"
 
 common = { path = "../common" }
-image = "0.25.1"
diff --git a/slicer/Cargo.toml b/slicer/Cargo.toml
index ca69252..7fa825e 100644
--- a/slicer/Cargo.toml
+++ b/slicer/Cargo.toml
@@ -3,8 +3,6 @@ name = "slicer"
 version = "0.1.0"
 edition = "2021"
 
-# See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
-
 [dependencies]
 anyhow = "1.0.86"
 nalgebra = "0.32.6"
diff --git a/slicer/src/slicer.rs b/slicer/src/slicer.rs
index 78c3b04..8a18b63 100644
--- a/slicer/src/slicer.rs
+++ b/slicer/src/slicer.rs
@@ -102,32 +102,34 @@ impl Slicer {
                     }
                 }
 
-                let mut image = Image::blank(
-                    self.slice_config.platform_resolution.x as usize,
-                    self.slice_config.platform_resolution.y as usize,
-                );
+                // let mut image = Image::blank(
+                //     self.slice_config.platform_resolution.x as usize,
+                //     self.slice_config.platform_resolution.y as usize,
+                // );
+
+                let mut encoder = Layer::new();
 
                 let mut last = 0;
                 for (start, end) in out {
                     if start > last {
-                        image.add_run((start - last) as usize, 0);
+                        encoder.add_run(start - last, 0);
                     }
 
                     assert!(end >= start, "End precedes start in layer {layer}");
-                    image.add_run((end - start) as usize, 255);
+                    encoder.add_run(end - start, 255);
                     last = end;
                 }
 
-                let mut encoder = Layer::new();
-
-                for Run { length, value } in image.runs() {
-                    encoder.add_run(length, value);
-                }
+                // for Run { length, value } in image.runs() {
+                //     encoder.add_run(length, value);
+                // }
 
                 encoder.finish(layer as usize, slice_config)
             })
             .collect::<Vec<_>>();
 
+        self.progress.notify.notify_all();
+
         SliceResult {
             layers,
             slice_config: &self.slice_config,