diff --git a/Cargo.lock b/Cargo.lock
index 664456c..d1c609f 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -13,7 +13,7 @@ name = "bin_comp"
 version = "0.1.0"
 dependencies = [
  "anyhow",
- "serde",
+ "enemize",
  "serde_json",
  "tempfile",
 ]
@@ -31,10 +31,12 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "baf1de4339761588bc0619e3cbc0120ee582ebb74b53b4efbf79117bd2da40fd"
 
 [[package]]
-name = "enemize-rs"
+name = "enemize"
 version = "0.1.0"
 dependencies = [
- "md5",
+ "anyhow",
+ "serde",
+ "serde_json",
 ]
 
 [[package]]
diff --git a/enemize/Cargo.toml b/enemize/Cargo.toml
index c59205e..a2cf87f 100644
--- a/enemize/Cargo.toml
+++ b/enemize/Cargo.toml
@@ -1,9 +1,11 @@
 [package]
-name = "enemize-rs"
+name = "enemize"
 version = "0.1.0"
 edition = "2021"
 
 # See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
 
 [dependencies]
-serde = { version = 1.0, features = ["derive"] }
+anyhow = "1"
+serde = { version = "1.0", features = ["derive"] }
+serde_json = "1.0"
diff --git a/enemize/src/lib.rs b/enemize/src/lib.rs
index d2ba5b0..eda29ef 100644
--- a/enemize/src/lib.rs
+++ b/enemize/src/lib.rs
@@ -1,40 +1,40 @@
-use std::io::Read;
+use std::fs::File;
 use std::path::{Path, PathBuf};
 
-use serde::Serialize;
+use serde::{Deserialize, Serialize};
 
 pub mod rom;
 
-#[derive(Serialize)]
+#[derive(Deserialize, Serialize)]
 pub struct Patch {
     pub address: usize,
     pub patch_data: Vec<u8>,
 }
 
-#[derive(Serialize)]
+#[derive(Deserialize, Serialize)]
 pub struct PatchSet {
     filename: PathBuf,
-    patches: Vec<Patch>
+    patches: Vec<Patch>,
 }
 
 impl PatchSet {
-    pub fn load(filename: Path) -> Result<PatchSet, anyhow::Error> {
+    pub fn load(filename: &Path) -> Result<PatchSet, anyhow::Error> {
         let patches = {
-            let mut file = File::open(filename)?;
-            let mut buffer = std::io::BufReader::new(file);
+            let file = File::open(filename)?;
+            let buffer = std::io::BufReader::new(file);
             serde_json::from_reader(buffer)?
         };
-        PatchSet {
+        Ok(PatchSet {
             filename: filename.into(),
-            patches: patches
-        }
+            patches: patches,
+        })
     }
 
-    pub fn filename(&self) -> Path {
+    pub fn filename(&self) -> &Path {
         self.filename.as_path()
     }
 
-    pub fn patchRom(&self, &mut rom: RomData) {
+    pub fn patch_rom(self, rom: &mut RomData) {
         for patch in self.patches {
             rom.patch_data(patch);
         }