diff --git a/noahover/aoc23/.formatter.exs b/noahover/aoc23/.formatter.exs
new file mode 100644
index 0000000..d2cda26
--- /dev/null
+++ b/noahover/aoc23/.formatter.exs
@@ -0,0 +1,4 @@
+# Used by "mix format"
+[
+  inputs: ["{mix,.formatter}.exs", "{config,lib,test}/**/*.{ex,exs}"]
+]
diff --git a/noahover/aoc23/.gitignore b/noahover/aoc23/.gitignore
new file mode 100644
index 0000000..8a762dc
--- /dev/null
+++ b/noahover/aoc23/.gitignore
@@ -0,0 +1,26 @@
+# The directory Mix will write compiled artifacts to.
+/_build/
+
+# If you run "mix test --cover", coverage assets end up here.
+/cover/
+
+# The directory Mix downloads your dependencies sources to.
+/deps/
+
+# Where third-party dependencies like ExDoc output generated docs.
+/doc/
+
+# Ignore .fetch files in case you like to edit your project deps locally.
+/.fetch
+
+# If the VM crashes, it generates a dump, let's ignore it too.
+erl_crash.dump
+
+# Also ignore archive artifacts (built via "mix archive.build").
+*.ez
+
+# Ignore package tarball (built via "mix hex.build").
+aoc23-*.tar
+
+# Temporary files, for example, from tests.
+/tmp/
diff --git a/noahover/aoc23/README.md b/noahover/aoc23/README.md
new file mode 100644
index 0000000..1260697
--- /dev/null
+++ b/noahover/aoc23/README.md
@@ -0,0 +1,21 @@
+# AdventOfCode2023
+
+**TODO: Add description**
+
+## Installation
+
+If [available in Hex](https://hex.pm/docs/publish), the package can be installed
+by adding `aoc23` to your list of dependencies in `mix.exs`:
+
+```elixir
+def deps do
+  [
+    {:aoc23, "~> 0.1.0"}
+  ]
+end
+```
+
+Documentation can be generated with [ExDoc](https://github.com/elixir-lang/ex_doc)
+and published on [HexDocs](https://hexdocs.pm). Once published, the docs can
+be found at <https://hexdocs.pm/aoc23>.
+
diff --git a/noahover/aoc23/input/day1.txt b/noahover/aoc23/input/day1.txt
new file mode 100644
index 0000000..813c4a3
--- /dev/null
+++ b/noahover/aoc23/input/day1.txt
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diff --git a/noahover/aoc23/input/day1_example.txt b/noahover/aoc23/input/day1_example.txt
new file mode 100644
index 0000000..7bbc69a
--- /dev/null
+++ b/noahover/aoc23/input/day1_example.txt
@@ -0,0 +1,4 @@
+1abc2
+pqr3stu8vwx
+a1b2c3d4e5f
+treb7uchet
diff --git a/noahover/aoc23/lib/day1.ex b/noahover/aoc23/lib/day1.ex
new file mode 100644
index 0000000..567eb94
--- /dev/null
+++ b/noahover/aoc23/lib/day1.ex
@@ -0,0 +1,33 @@
+defmodule Day1 do
+  @moduledoc """
+  Advent of Code 2023 Day 1
+  """
+
+  def parse_input(input) do
+    input
+    |> String.split("\n", trim: true)
+    |> Enum.map(fn x ->
+      x
+      |> String.to_charlist()
+      |> Enum.map(fn x -> x - 48 end)
+      |> Enum.filter(fn x -> x >= 0 && x <= 9 end)
+    end)
+  end
+
+  @doc """
+  Day 1 Part 1
+
+  Sum the calibration values which are the first numeral in each line
+  as the first digit and the last numeral in each line as the second digit.
+  """
+  def sum_calibration_values(digits) do
+    digits
+    |> Enum.map(fn x ->
+      first_digit = hd(x)
+      last_digit = List.last(x)
+
+      first_digit * 10 + last_digit
+    end)
+    |> Enum.sum()
+  end
+end
diff --git a/noahover/aoc23/mix.exs b/noahover/aoc23/mix.exs
new file mode 100644
index 0000000..9305ae2
--- /dev/null
+++ b/noahover/aoc23/mix.exs
@@ -0,0 +1,28 @@
+defmodule AdventOfCode2023.MixProject do
+  use Mix.Project
+
+  def project do
+    [
+      app: :aoc23,
+      version: "0.1.0",
+      elixir: "~> 1.14",
+      start_permanent: Mix.env() == :prod,
+      deps: deps()
+    ]
+  end
+
+  # Run "mix help compile.app" to learn about applications.
+  def application do
+    [
+      extra_applications: [:logger]
+    ]
+  end
+
+  # Run "mix help deps" to learn about dependencies.
+  defp deps do
+    [
+      # {:dep_from_hexpm, "~> 0.3.0"},
+      # {:dep_from_git, git: "https://github.com/elixir-lang/my_dep.git", tag: "0.1.0"}
+    ]
+  end
+end
diff --git a/noahover/aoc23/test/day1_test.exs b/noahover/aoc23/test/day1_test.exs
new file mode 100644
index 0000000..2ff3bb9
--- /dev/null
+++ b/noahover/aoc23/test/day1_test.exs
@@ -0,0 +1,24 @@
+defmodule Day1Test do
+  use ExUnit.Case
+  doctest Day1
+
+  import Day1
+
+  test "day 1 part 1 example - sum calibration values" do
+    answer =
+      File.read!("input/day1_example.txt")
+      |> parse_input()
+      |> sum_calibration_values()
+
+    assert answer == 142
+  end
+
+  test "day 1 part 1 - sum calibration values" do
+    answer =
+      File.read!("input/day1.txt")
+      |> parse_input()
+      |> sum_calibration_values()
+
+    assert answer == 54450
+  end
+end
diff --git a/noahover/aoc23/test/test_helper.exs b/noahover/aoc23/test/test_helper.exs
new file mode 100644
index 0000000..869559e
--- /dev/null
+++ b/noahover/aoc23/test/test_helper.exs
@@ -0,0 +1 @@
+ExUnit.start()