diff --git a/2023/.gitignore b/2023/.gitignore
new file mode 100644
index 0000000..4bc139e
--- /dev/null
+++ b/2023/.gitignore
@@ -0,0 +1,21 @@
+# Created by https://www.toptal.com/developers/gitignore/api/rust
+# Edit at https://www.toptal.com/developers/gitignore?templates=rust
+
+### Rust ###
+# Generated by Cargo
+# will have compiled files and executables
+debug/
+target/
+
+# Remove Cargo.lock from gitignore if creating an executable, leave it for libraries
+# More information here https://doc.rust-lang.org/cargo/guide/cargo-toml-vs-cargo-lock.html
+Cargo.lock
+
+# These are backup files generated by rustfmt
+**/*.rs.bk
+
+# MSVC Windows builds of rustc generate these, which store debugging information
+*.pdb
+
+# End of https://www.toptal.com/developers/gitignore/api/rust
+
diff --git a/2023/Cargo.toml b/2023/Cargo.toml
new file mode 100644
index 0000000..7450193
--- /dev/null
+++ b/2023/Cargo.toml
@@ -0,0 +1,11 @@
+[package]
+name = "aoc"
+version = "0.1.0"
+edition = "2021"
+
+# See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
+
+[dependencies]
+anyhow = "1.0.75"
+
+[features]
diff --git a/2023/new.sh b/2023/new.sh
new file mode 100755
index 0000000..fe0d3c3
--- /dev/null
+++ b/2023/new.sh
@@ -0,0 +1,15 @@
+#!/bin/sh
+day=$1
+type=$2
+default=$3
+test=$4
+
+echo "Creating file from template..."
+sed -e "s/DAY/$day/g" -e "s/TYPE/$type/" -e "s/DEFAULT/$default/" -e "s/TEST/$test/" ./template.rs > ./src/bin/day${day}.rs
+
+echo "Downloading input..."
+source ../.env
+mkdir -p input/$1
+curl -s "https://adventofcode.com/2023/day/$1/input" -H "Cookie: session=${SESSION}" > input/$1/input
+
+echo "Done!"
diff --git a/2023/src/lib.rs b/2023/src/lib.rs
new file mode 100644
index 0000000..5e4b7db
--- /dev/null
+++ b/2023/src/lib.rs
@@ -0,0 +1,46 @@
+#![feature(test)]
+extern crate test;
+
+use core::fmt;
+use std::{fmt::Debug, fs};
+
+use anyhow::{Context, Result};
+
+pub trait Solver {
+    type Output1: fmt::Display + Debug + PartialEq;
+    type Output2: fmt::Display + Debug + PartialEq;
+
+    fn day() -> u8;
+    fn part1(input: &str) -> Self::Output1;
+    fn part2(input: &str) -> Self::Output2;
+
+    fn test<T: Fn(&str) -> U, U: Debug + PartialEq>(f: T, name: &str, result: U) -> Result<()> {
+        // Select the right function
+
+        // Read the test input
+        let input = fs::read_to_string(format!("input/{:02}/{name}", Self::day()))
+            .with_context(|| format!("Failed to read '{}' for day {:02}", name, Self::day()))?;
+
+        // Assert that the result matches the expected value
+        assert_eq!(f(&input), result);
+
+        Ok(())
+    }
+
+    fn solve() -> Result<()> {
+        let input = fs::read_to_string(format!("input/{:02}/input", Self::day()))
+            .with_context(|| format!("Failed to read 'input' for day {:02}", Self::day()))?;
+        println!("Part 1:\n{}", Self::part1(&input));
+        println!("Part 2:\n{}", Self::part2(&input));
+
+        Ok(())
+    }
+
+    fn benchmark<T: Fn(&str) -> U, U: Debug + PartialEq>(f: T, b: &mut test::Bencher) {
+        let input = fs::read_to_string(format!("input/{:02}/input", Self::day()))
+            .with_context(|| format!("Failed to read 'input' for day {:02}", Self::day()))
+            .unwrap();
+
+        b.iter(|| f(&input));
+    }
+}
diff --git a/2023/template.rs b/2023/template.rs
new file mode 100644
index 0000000..d67c70d
--- /dev/null
+++ b/2023/template.rs
@@ -0,0 +1,50 @@
+#![feature(test)]
+use anyhow::Result;
+use aoc::Solver;
+
+// -- Runners --
+fn main() -> Result<()> {
+    Day::solve()
+}
+
+#[cfg(test)]
+mod tests {
+    use super::*;
+
+    #[test]
+    fn part1_test1() -> Result<()> {
+        Day::test(Day::part1, "test-1", TEST)
+    }
+
+    // Benchmarks
+    extern crate test;
+    #[bench]
+    #[ignore]
+    fn part1_bench(b: &mut test::Bencher) {
+        Day::benchmark(Day::part1, b)
+    }
+    #[bench]
+    #[ignore]
+    fn part2_bench(b: &mut test::Bencher) {
+        Day::benchmark(Day::part2, b)
+    }
+}
+
+// -- Solution --
+pub struct Day;
+impl aoc::Solver for Day {
+    type Output1 = TYPE;
+    type Output2 = TYPE;
+
+    fn day() -> u8 {
+        DAY
+    }
+
+    fn part1(input: &str) -> Self::Output1 {
+        DEFAULT
+    }
+
+    fn part2(input: &str) -> Self::Output2 {
+        DEFAULT
+    }
+}