diff --git a/2025/Cargo.lock b/2025/Cargo.lock
index 831a3c3..14475ce 100644
--- a/2025/Cargo.lock
+++ b/2025/Cargo.lock
@@ -237,6 +237,21 @@ dependencies = [
  "tracing-subscriber",
 ]
 
+[[package]]
+name = "day-10"
+version = "0.1.0"
+dependencies = [
+ "divan",
+ "itertools",
+ "miette",
+ "nom",
+ "rstest",
+ "test-log",
+ "thiserror",
+ "tracing",
+ "tracing-subscriber",
+]
+
 [[package]]
 name = "divan"
 version = "0.1.21"
diff --git a/2025/Cargo.toml b/2025/Cargo.toml
index 11df801..0ff119a 100644
--- a/2025/Cargo.toml
+++ b/2025/Cargo.toml
@@ -10,6 +10,7 @@ members = [
     "day-07",
     "day-08",
     "day-09",
+    "day-10",
 ]
 default-members = ["day-*"]
 resolver = "2"
diff --git a/2025/day-10/Cargo.toml b/2025/day-10/Cargo.toml
new file mode 100644
index 0000000..4090ce1
--- /dev/null
+++ b/2025/day-10/Cargo.toml
@@ -0,0 +1,27 @@
+[package]
+name = "day-10"
+version = "0.1.0"
+edition = "2024"
+
+# See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
+
+[dependencies]
+itertools.workspace = true
+nom.workspace = true
+tracing.workspace = true
+tracing-subscriber.workspace = true
+miette.workspace = true
+thiserror.workspace = true
+
+[dev-dependencies]
+divan.workspace = true
+rstest.workspace = true
+test-log.workspace = true
+
+[[bench]]
+name = "day-10-bench"
+path = "benches/benchmarks.rs"
+harness = false
+
+[lints]
+workspace = true
diff --git a/2025/day-10/benches/benchmarks.rs b/2025/day-10/benches/benchmarks.rs
new file mode 100644
index 0000000..78f29e2
--- /dev/null
+++ b/2025/day-10/benches/benchmarks.rs
@@ -0,0 +1,15 @@
+use day_10::{part1, part2};
+
+fn main() {
+    divan::main();
+}
+
+#[divan::bench]
+fn part1() {
+    part1::process(divan::black_box(include_str!("../input1.txt"))).unwrap();
+}
+
+#[divan::bench]
+fn part2() {
+    part2::process(divan::black_box(include_str!("../input2.txt"))).unwrap();
+}
diff --git a/2025/day-10/src/bin/part1.rs b/2025/day-10/src/bin/part1.rs
new file mode 100644
index 0000000..4eeb66b
--- /dev/null
+++ b/2025/day-10/src/bin/part1.rs
@@ -0,0 +1,12 @@
+use day_10::part1::process;
+use miette::{Context, Result};
+
+#[tracing::instrument]
+fn main() -> Result<()> {
+    tracing_subscriber::fmt::init();
+
+    let file = include_str!("../../input1.txt");
+    let result = process(file).context("process part 1")?;
+    println!("{result}");
+    Ok(())
+}
diff --git a/2025/day-10/src/bin/part2.rs b/2025/day-10/src/bin/part2.rs
new file mode 100644
index 0000000..b93334f
--- /dev/null
+++ b/2025/day-10/src/bin/part2.rs
@@ -0,0 +1,12 @@
+use day_10::part2::process;
+use miette::{Context, Result};
+
+#[tracing::instrument]
+fn main() -> Result<()> {
+    tracing_subscriber::fmt::init();
+
+    let file = include_str!("../../input2.txt");
+    let result = process(file).context("process part 2")?;
+    println!("{result}");
+    Ok(())
+}
diff --git a/2025/day-10/src/lib.rs b/2025/day-10/src/lib.rs
new file mode 100644
index 0000000..faaf542
--- /dev/null
+++ b/2025/day-10/src/lib.rs
@@ -0,0 +1,2 @@
+pub mod part1;
+pub mod part2;
diff --git a/2025/day-10/src/part1.rs b/2025/day-10/src/part1.rs
new file mode 100644
index 0000000..2052179
--- /dev/null
+++ b/2025/day-10/src/part1.rs
@@ -0,0 +1,23 @@
+use miette::miette;
+#[tracing::instrument]
+#[allow(clippy::missing_panics_doc)]
+#[allow(clippy::missing_errors_doc)]
+pub fn process(input: &str) -> miette::Result<usize> {
+    todo!("day xx - part 1");
+    Ok(0)
+}
+
+#[cfg(test)]
+mod tests {
+    use super::*;
+
+    #[test]
+    fn test_process() -> miette::Result<()> {
+        let input = "[.##.] (3) (1,3) (2) (2,3) (0,2) (0,1) {3,5,4,7}
+[...#.] (0,2,3,4) (2,3) (0,4) (0,1,2) (1,2,3,4) {7,5,12,7,2}
+[.###.#] (0,1,2,3,4) (0,3,4) (0,1,2,4,5) (1,2) {10,11,11,5,10,5}";
+        let result = 0;
+        assert_eq!(process(input)?, result);
+        Ok(())
+    }
+}
diff --git a/2025/day-10/src/part2.rs b/2025/day-10/src/part2.rs
new file mode 100644
index 0000000..ef3e35b
--- /dev/null
+++ b/2025/day-10/src/part2.rs
@@ -0,0 +1,23 @@
+use miette::miette;
+
+#[tracing::instrument]
+#[allow(clippy::missing_panics_doc)]
+#[allow(clippy::missing_errors_doc)]
+pub fn process(input: &str) -> Result<usize> {
+    todo!("day xx - part 2");
+    Ok(0)
+}
+
+#[cfg(test)]
+mod tests {
+    use super::*;
+
+    #[test]
+    fn test_process() -> miette::Result<()> {
+        let input = "";
+        todo!("haven't built test yet");
+        let result = 0;
+        assert_eq!(process(input)?, result);
+        Ok(())
+    }
+}