diff --git a/.gitignore b/.gitignore
new file mode 100644
index 0000000..66056de
--- /dev/null
+++ b/.gitignore
@@ -0,0 +1,205 @@
+# General
+.DS_Store
+.AppleDouble
+.LSOverride
+
+# Icon must end with two \r
+Icon
+
+# Thumbnails
+._*
+
+# Files that might appear in the root of a volume
+.DocumentRevisions-V100
+.fseventsd
+.Spotlight-V100
+.TemporaryItems
+.Trashes
+.VolumeIcon.icns
+.com.apple.timemachine.donotpresent
+
+# Directories potentially created on remote AFP share
+.AppleDB
+.AppleDesktop
+Network Trash Folder
+Temporary Items
+.apdisk
+
+# Visual Studio Code
+.vscode/*
+!.vscode/settings.json
+!.vscode/tasks.json
+!.vscode/launch.json
+!.vscode/extensions.json
+!.vscode/*.code-snippets
+
+# Local History for Visual Studio Code
+.history/
+
+# Built Visual Studio Code Extensions
+*.vsix
+
+# Byte-compiled / optimized / DLL files
+__pycache__/
+*.py[cod]
+*$py.class
+
+# C extensions
+*.so
+
+# Distribution / packaging
+.Python
+build/
+develop-eggs/
+dist/
+downloads/
+eggs/
+.eggs/
+lib/
+lib64/
+parts/
+sdist/
+var/
+wheels/
+share/python-wheels/
+*.egg-info/
+.installed.cfg
+*.egg
+MANIFEST
+
+# PyInstaller
+#  Usually these files are written by a python script from a template
+#  before PyInstaller builds the exe, so as to inject date/other infos into it.
+*.manifest
+*.spec
+
+# Installer logs
+pip-log.txt
+pip-delete-this-directory.txt
+
+# Unit test / coverage reports
+htmlcov/
+.tox/
+.nox/
+.coverage
+.coverage.*
+.cache
+nosetests.xml
+coverage.xml
+*.cover
+*.py,cover
+.hypothesis/
+.pytest_cache/
+cover/
+
+# Translations
+*.mo
+*.pot
+
+# Django stuff:
+*.log
+local_settings.py
+db.sqlite3
+db.sqlite3-journal
+
+# Flask stuff:
+instance/
+.webassets-cache
+
+# Scrapy stuff:
+.scrapy
+
+# Sphinx documentation
+docs/_build/
+
+# PyBuilder
+.pybuilder/
+target/
+
+# Jupyter Notebook
+.ipynb_checkpoints
+
+# IPython
+profile_default/
+ipython_config.py
+
+# pyenv
+#   For a library or package, you might want to ignore these files since the code is
+#   intended to run in multiple environments; otherwise, check them in:
+# .python-version
+
+# pipenv
+#   According to pypa/pipenv#598, it is recommended to include Pipfile.lock in version control.
+#   However, in case of collaboration, if having platform-specific dependencies or dependencies
+#   having no cross-platform support, pipenv may install dependencies that don't work, or not
+#   install all needed dependencies.
+#Pipfile.lock
+
+# poetry
+#   Similar to Pipfile.lock, it is generally recommended to include poetry.lock in version control.
+#   This is especially recommended for binary packages to ensure reproducibility, and is more
+#   commonly ignored for libraries.
+#   https://python-poetry.org/docs/basic-usage/#commit-your-poetrylock-file-to-version-control
+#poetry.lock
+
+# pdm
+#   Similar to Pipfile.lock, it is generally recommended to include pdm.lock in version control.
+#pdm.lock
+#   pdm stores project-wide configurations in .pdm.toml, but it is recommended to not include it
+#   in version control.
+#   https://pdm.fming.dev/#use-with-ide
+.pdm.toml
+
+# PEP 582; used by e.g. github.com/David-OConnor/pyflow and github.com/pdm-project/pdm
+__pypackages__/
+
+# Celery stuff
+celerybeat-schedule
+celerybeat.pid
+
+# SageMath parsed files
+*.sage.py
+
+# Environments
+.env
+.venv
+env/
+venv/
+ENV/
+env.bak/
+venv.bak/
+
+# Spyder project settings
+.spyderproject
+.spyproject
+
+# Rope project settings
+.ropeproject
+
+# mkdocs documentation
+/site
+
+# mypy
+.mypy_cache/
+.dmypy.json
+dmypy.json
+
+# Pyre type checker
+.pyre/
+
+# pytype static type analyzer
+.pytype/
+
+# Cython debug symbols
+cython_debug/
+
+# PyCharm
+#  JetBrains specific template is maintained in a separate JetBrains.gitignore that can
+#  be found at https://github.com/github/gitignore/blob/main/Global/JetBrains.gitignore
+#  and can be added to the global gitignore or merged into this file.  For a more nuclear
+#  option (not recommended) you can uncomment the following to ignore the entire idea folder.
+#.idea/
+
+# Rye
+requirements-dev.lock
+requirements.lock
diff --git a/.python-version b/.python-version
new file mode 100644
index 0000000..171a6a9
--- /dev/null
+++ b/.python-version
@@ -0,0 +1 @@
+3.12.1
diff --git a/isogloss/__init__.py b/isogloss/__init__.py
deleted file mode 100644
index e69de29..0000000
diff --git a/pyproject.toml b/pyproject.toml
new file mode 100644
index 0000000..7c839bd
--- /dev/null
+++ b/pyproject.toml
@@ -0,0 +1,37 @@
+[project]
+name = "isogloss"
+version = "1.0.2"
+description = "A tool for looking up ISO 639 and IETF language codes"
+authors = [
+    { name = "underwood (T E Vaughan)", email = "underwood@underwood.network" },
+]
+dependencies = ["unidecode>=1.3.8", "argparse>=1.4.0"]
+readme = "README.md"
+license = { file = "LICENSE" }
+requires-python = ">= 3.8"
+classifiers = [
+    'Programming Language :: Python :: 3',
+    'License :: OSI Approved :: MIT License',
+    'Operating System :: POSIX :: Linux',
+    'Operating System :: MacOS :: MacOS X',
+]
+
+[project.urls]
+Repository = "https://github.com/thunderpoot/isogloss.git"
+
+[project.scripts]
+isogloss = "isogloss.isogloss:main"
+
+[build-system]
+requires = ["hatchling"]
+build-backend = "hatchling.build"
+
+[tool.rye]
+managed = true
+dev-dependencies = []
+
+[tool.hatch.metadata]
+allow-direct-references = true
+
+[tool.hatch.build.targets.wheel]
+packages = ["src/isogloss"]
diff --git a/data/consolidated_langs.json b/src/data/consolidated_langs.json
similarity index 100%
rename from data/consolidated_langs.json
rename to src/data/consolidated_langs.json
diff --git a/data/region_names.json b/src/data/region_names.json
similarity index 100%
rename from data/region_names.json
rename to src/data/region_names.json
diff --git a/src/isogloss/__init__.py b/src/isogloss/__init__.py
new file mode 100644
index 0000000..7863915
--- /dev/null
+++ b/src/isogloss/__init__.py
@@ -0,0 +1 @@
+__version__ = "1.0.2"
diff --git a/isogloss/isogloss.py b/src/isogloss/isogloss.py
similarity index 99%
rename from isogloss/isogloss.py
rename to src/isogloss/isogloss.py
index a541a31..9885ee8 100755
--- a/isogloss/isogloss.py
+++ b/src/isogloss/isogloss.py
@@ -1,5 +1,3 @@
-#!/usr/bin/env python3
-
 """
 Isogloss: A program to lookup languaes by ISO639 code or by IETF tag.
 """
@@ -7,6 +5,7 @@
 import argparse
 import json
 import os
+import sys
 
 from unidecode import unidecode