diff --git a/.envrc b/.envrc
new file mode 100644
index 0000000..3550a30
--- /dev/null
+++ b/.envrc
@@ -0,0 +1 @@
+use flake
diff --git a/.formatter.exs b/.formatter.exs
new file mode 100644
index 0000000..d2cda26
--- /dev/null
+++ b/.formatter.exs
@@ -0,0 +1,4 @@
+# Used by "mix format"
+[
+  inputs: ["{mix,.formatter}.exs", "{config,lib,test}/**/*.{ex,exs}"]
+]
diff --git a/.gitignore b/.gitignore
index fc5d8e3..7d4ddaa 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,12 +1,28 @@
-# ---> Elixir
-/_build
-/cover
-/deps
-/doc
-/.fetch
-erl_crash.dump
-*.ez
-*.beam
-/config/*.secret.exs
-.elixir_ls/
+# 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").
+elixirsssh-*.tar
+
+# Temporary files, for example, from tests.
+/tmp/
+
+.direnv/
diff --git a/README.md b/README.md
index 4727aeb..9014d97 100644
--- a/README.md
+++ b/README.md
@@ -1,2 +1,21 @@
 # Elixirsssh
 
+**TODO: Add description**
+
+## Installation
+
+If [available in Hex](https://hex.pm/docs/publish), the package can be installed
+by adding `elixirsssh` to your list of dependencies in `mix.exs`:
+
+```elixir
+def deps do
+  [
+    {:elixirsssh, "~> 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/elixirsssh>.
+
diff --git a/flake.lock b/flake.lock
new file mode 100644
index 0000000..0e5add5
--- /dev/null
+++ b/flake.lock
@@ -0,0 +1,43 @@
+{
+  "nodes": {
+    "nixpkgs": {
+      "locked": {
+        "lastModified": 1716312448,
+        "narHash": "sha256-PH3w5av8d+TdwCkiWN4UPBTxrD9MpxIQPDVWctlomVo=",
+        "owner": "nixos",
+        "repo": "nixpkgs",
+        "rev": "e381a1288138aceda0ac63db32c7be545b446921",
+        "type": "github"
+      },
+      "original": {
+        "owner": "nixos",
+        "ref": "nixpkgs-unstable",
+        "repo": "nixpkgs",
+        "type": "github"
+      }
+    },
+    "root": {
+      "inputs": {
+        "nixpkgs": "nixpkgs",
+        "systems": "systems"
+      }
+    },
+    "systems": {
+      "locked": {
+        "lastModified": 1681028828,
+        "narHash": "sha256-Vy1rq5AaRuLzOxct8nz4T6wlgyUR7zLU309k9mBC768=",
+        "owner": "nix-systems",
+        "repo": "default",
+        "rev": "da67096a3b9bf56a91d16901293e51ba5b49a27e",
+        "type": "github"
+      },
+      "original": {
+        "owner": "nix-systems",
+        "repo": "default",
+        "type": "github"
+      }
+    }
+  },
+  "root": "root",
+  "version": 7
+}
diff --git a/flake.nix b/flake.nix
new file mode 100644
index 0000000..4ce4d66
--- /dev/null
+++ b/flake.nix
@@ -0,0 +1,52 @@
+{
+  inputs = {
+    nixpkgs.url = "github:nixos/nixpkgs/nixpkgs-unstable";
+    systems.url = "github:nix-systems/default";
+  };
+
+  outputs = {
+    nixpkgs,
+    systems,
+    ...
+  } @ inputs: let
+    inherit (nixpkgs) lib;
+
+    # Set the Erlang version
+    erlangVersion = "erlang_26";
+    # Set the Elixir version
+    elixirVersion = "elixir_1_15";
+
+    eachSystem = f:
+      nixpkgs.lib.genAttrs (import systems) (
+        system:
+          f (import nixpkgs {
+            inherit system;
+            overlays = [
+              (final: _: let
+                erlang = final.beam.interpreters.${erlangVersion};
+                beamPackages = final.beam.packages.${erlangVersion};
+                elixir = beamPackages.${elixirVersion};
+              in {
+                inherit erlang elixir;
+                inherit (beamPackages) elixir-ls hex;
+              })
+            ];
+          })
+      );
+  in {
+    # packages = eachSystem (pkgs:
+    # );
+
+    devShells = eachSystem (
+      pkgs: {
+        default = pkgs.mkShell {
+          buildInputs = with pkgs; [
+            erlang
+            elixir
+            elixir-ls
+          ];
+        };
+      }
+    );
+  };
+}
diff --git a/lib/elixirsssh.ex b/lib/elixirsssh.ex
new file mode 100644
index 0000000..dc02ac1
--- /dev/null
+++ b/lib/elixirsssh.ex
@@ -0,0 +1,25 @@
+defmodule Elixirsssh do
+  use Application
+
+  def start(_type, _args) do
+    IO.puts(hello())
+    {:ok, self()}
+  end
+
+  @moduledoc """
+  Documentation for `Elixirsssh`.
+  """
+
+  @doc """
+  Hello world.
+
+  ## Examples
+
+      iex> Elixirsssh.hello()
+      :world
+
+  """
+  def hello do
+    :world
+  end
+end
diff --git a/mix.exs b/mix.exs
new file mode 100644
index 0000000..234fc06
--- /dev/null
+++ b/mix.exs
@@ -0,0 +1,29 @@
+defmodule Elixirsssh.MixProject do
+  use Mix.Project
+
+  def project do
+    [
+      app: :elixirsssh,
+      version: "0.1.0",
+      elixir: "~> 1.15",
+      start_permanent: Mix.env() == :prod,
+      deps: deps()
+    ]
+  end
+
+  # Run "mix help compile.app" to learn about applications.
+  def application do
+    [
+      extra_applications: [:logger],
+      mod: {Elixirsssh, []}
+    ]
+  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/test/elixirsssh_test.exs b/test/elixirsssh_test.exs
new file mode 100644
index 0000000..70633ab
--- /dev/null
+++ b/test/elixirsssh_test.exs
@@ -0,0 +1,8 @@
+defmodule ElixirssshTest do
+  use ExUnit.Case
+  doctest Elixirsssh
+
+  test "greets the world" do
+    assert Elixirsssh.hello() == :world
+  end
+end
diff --git a/test/test_helper.exs b/test/test_helper.exs
new file mode 100644
index 0000000..869559e
--- /dev/null
+++ b/test/test_helper.exs
@@ -0,0 +1 @@
+ExUnit.start()