diff --git a/.gitignore b/.gitignore
new file mode 100644
index 0000000..1089d41
--- /dev/null
+++ b/.gitignore
@@ -0,0 +1,6 @@
+# Generated files
+**/target/
+
+# Well, this depends... See below!
+Cargo.lock
+
diff --git a/day1/Cargo.lock b/day1/Cargo.lock
index ae5bfe8..b646363 100644
--- a/day1/Cargo.lock
+++ b/day1/Cargo.lock
@@ -5,3 +5,10 @@ version = 3
 [[package]]
 name = "day1"
 version = "0.1.0"
+dependencies = [
+ "util",
+]
+
+[[package]]
+name = "util"
+version = "0.1.0"
diff --git a/day1/Cargo.toml b/day1/Cargo.toml
index a3c4e52..33c009c 100644
--- a/day1/Cargo.toml
+++ b/day1/Cargo.toml
@@ -6,3 +6,4 @@ edition = "2021"
 # See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
 
 [dependencies]
+util = { path = "../util/" }
diff --git a/day1/src/main.rs b/day1/src/main.rs
index 7043a6c..1a5a344 100644
--- a/day1/src/main.rs
+++ b/day1/src/main.rs
@@ -1,4 +1,4 @@
-use std::{fs::File, io::Read};
+use util::get_data;
 
 fn main() {
     let word_numbers: Vec<String> = vec![
@@ -123,22 +123,6 @@ fn get_first_digit(word_numbers: &Vec<String>, line: &String) -> char {
     }
 }
 
-fn get_data(path: &str) -> Vec<String> {
-    let mut data = match File::open(path) {
-        Ok(file) => file,
-        Err(err) => panic!("failed to read the data file: {:?}", err),
-    };
-
-    let mut content = String::new();
-    data.read_to_string(&mut content)
-        .ok()
-        .expect("failed to parse file");
-
-    let lines: Vec<String> = content.split("\n").map(|l| l.to_string()).collect();
-
-    return lines;
-}
-
 fn get_digit_from_str(word: &str) -> char {
     match word {
         "zero" => return '0',
diff --git a/day1/target/debug/day1 b/day1/target/debug/day1
index e91ec54..9795e25 100755
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diff --git a/day1/target/debug/day1.d b/day1/target/debug/day1.d
index 0f8ac55..d67b965 100644
--- a/day1/target/debug/day1.d
+++ b/day1/target/debug/day1.d
@@ -1 +1 @@
-/home/mimu/projects/aoc2023/day1/target/debug/day1: /home/mimu/projects/aoc2023/day1/src/main.rs
+/home/mimu/projects/aoc2023/day1/target/debug/day1: /home/mimu/projects/aoc2023/day1/src/main.rs /home/mimu/projects/aoc2023/util/src/lib.rs
diff --git a/day1/target/debug/deps/day1-c8622095bd0e97ba b/day1/target/debug/deps/day1-c8622095bd0e97ba
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diff --git a/day1/target/debug/incremental/day1-3me4sl1tqudf5/s-gr4e5yb75z-18ytzr0.lock b/day1/target/debug/incremental/day1-3me4sl1tqudf5/s-gr4e5yb75z-18ytzr0.lock
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diff --git a/day2/Cargo.toml b/day2/Cargo.toml
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index 0000000..8aa34bb
--- /dev/null
+++ b/day2/Cargo.toml
@@ -0,0 +1,8 @@
+[package]
+name = "day2"
+version = "0.1.0"
+edition = "2021"
+
+# See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
+
+[dependencies]
diff --git a/day2/src/main.rs b/day2/src/main.rs
new file mode 100644
index 0000000..e7a11a9
--- /dev/null
+++ b/day2/src/main.rs
@@ -0,0 +1,3 @@
+fn main() {
+    println!("Hello, world!");
+}
diff --git a/util/Cargo.toml b/util/Cargo.toml
new file mode 100644
index 0000000..7b38d76
--- /dev/null
+++ b/util/Cargo.toml
@@ -0,0 +1,8 @@
+[package]
+name = "util"
+version = "0.1.0"
+edition = "2021"
+
+# See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
+
+[dependencies]
diff --git a/util/src/lib.rs b/util/src/lib.rs
new file mode 100644
index 0000000..09d7cd0
--- /dev/null
+++ b/util/src/lib.rs
@@ -0,0 +1,17 @@
+use std::{fs::File, io::Read};
+
+pub fn get_data(path: &str) -> Vec<String> {
+    let mut data = match File::open(path) {
+        Ok(file) => file,
+        Err(err) => panic!("failed to read the data file: {:?}", err),
+    };
+
+    let mut content = String::new();
+    data.read_to_string(&mut content)
+        .ok()
+        .expect("failed to parse file");
+
+    let lines: Vec<String> = content.split("\n").map(|l| l.to_string()).collect();
+
+    return lines;
+}