diff --git a/.gitignore b/.gitignore
new file mode 100644
index 0000000..1521c8b
--- /dev/null
+++ b/.gitignore
@@ -0,0 +1 @@
+dist
diff --git a/LICENSE b/LICENSE
new file mode 100644
index 0000000..7bf1e73
--- /dev/null
+++ b/LICENSE
@@ -0,0 +1,22 @@
+MIT License
+
+Copyright (c) 2023 Mark Sellors
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.
+
diff --git a/Makefile b/Makefile
index a268b7f..3ae006a 100644
--- a/Makefile
+++ b/Makefile
@@ -1,4 +1,4 @@
 all: README.md
 
 README.md: README.bashdown bashdown
-	./bashdown README.bashdown > README.md
+	bashdown README.bashdown > README.md
diff --git a/README.bashdown b/README.bashdown
index b360437..caaa348 100644
--- a/README.bashdown
+++ b/README.bashdown
@@ -24,13 +24,13 @@ significantly fewer dependencies due to it's much more limited scope.
 Basic usage is as follows:
 
 ```bash
-# ./bashdown README.bashdown > README.md
+# bashdown README.bashdown > README.md
 ```
 
 Full usage information can be obtained from the built in help.
 
 ```bash
-./bashdown --help
+bashdown --help
 ```
 
 
diff --git a/README.md b/README.md
index 8100a46..01b6085 100644
--- a/README.md
+++ b/README.md
@@ -24,13 +24,13 @@ significantly fewer dependencies due to it's much more limited scope.
 Basic usage is as follows:
 
 ```bash
-# ./bashdown README.bashdown > README.md
+# bashdown README.bashdown > README.md
 ```
 
 Full usage information can be obtained from the built in help.
 
 ```bash
-./bashdown --help
+bashdown --help
 ```
 
 ```output
@@ -41,7 +41,7 @@ Processes in-line bash in markdown files
 positional arguments:
   filename
 
-optional arguments:
+options:
   -h, --help  show this help message and exit
 
 For more information please see the docs
diff --git a/bashdown b/bashdown/__init__.py
old mode 100755
new mode 100644
similarity index 88%
rename from bashdown
rename to bashdown/__init__.py
index b8918a4..7ec424b
--- a/bashdown
+++ b/bashdown/__init__.py
@@ -1,4 +1,3 @@
-#!/usr/bin/env python3
 """
 Takes a markdown file with bash code blocks, executes the bash commands and
 returns the original markdown content with output blocks containing the
@@ -8,6 +7,7 @@
 import argparse
 import re
 import subprocess
+import sys
 
 
 def process_content(input_lines):
@@ -42,16 +42,24 @@ def process_content(input_lines):
         print(line, end="")
 
 
-if __name__ == "__main__":
+def cli_arg_parser(args=None):
     parser = argparse.ArgumentParser(
         prog="bashdown",
         description="Processes in-line bash in markdown files",
         epilog="For more information please see the docs",
     )
     parser.add_argument("filename")
-    args = parser.parse_args()
+    return parser.parse_args()
+
+
+def main():
+    args = cli_arg_parser(sys.argv[1:])
 
-    with open(args.filename, "r") as file:
+    with open(args.filename, "r", encoding="utf8") as file:
         content = file.readlines()
 
     process_content(content)
+
+
+if __name__ == "__main__":
+    main()
diff --git a/bashdown/__pycache__/__init__.cpython-310.pyc b/bashdown/__pycache__/__init__.cpython-310.pyc
new file mode 100644
index 0000000..854ef82
Binary files /dev/null and b/bashdown/__pycache__/__init__.cpython-310.pyc differ
diff --git a/poetry.lock b/poetry.lock
new file mode 100644
index 0000000..cf161de
--- /dev/null
+++ b/poetry.lock
@@ -0,0 +1,7 @@
+# This file is automatically @generated by Poetry 1.4.0 and should not be changed by hand.
+package = []
+
+[metadata]
+lock-version = "2.0"
+python-versions = "^3.10"
+content-hash = "53f2eabc9c26446fbcc00d348c47878e118afc2054778c3c803a0a8028af27d9"
diff --git a/pyproject.toml b/pyproject.toml
new file mode 100644
index 0000000..c6936db
--- /dev/null
+++ b/pyproject.toml
@@ -0,0 +1,21 @@
+[tool.poetry]
+name = "bashdown"
+version = "0.1.0"
+description = "Executes in-line bash in markdown files"
+authors = ["Mark Sellors <github@5vcc.com>"]
+readme = "README.md"
+repository = "https://github.com/python-poetry/poetry"
+homepage = "https://python-poetry.org/"
+
+
+[tool.poetry.dependencies]
+python = "^3.10"
+
+
+[build-system]
+requires = ["poetry-core"]
+build-backend = "poetry.core.masonry.api"
+
+[tool.poetry.scripts]
+bashdown = "bashdown:main"
+