diff --git a/.gitignore b/.gitignore
index 46f6ea7..ca5f00c 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,11 +1,185 @@
 master_ufo
 NotoSans
 Nunito
-/target
-Cargo.lock
 *.ufo
 *.ttf
 *.otf
 *.ttx
 
 .DS_Store
+
+# Generated by Cargo
+# will have compiled files and executables
+debug/
+target/
+
+# Remove Cargo.lock from gitignore if creating an executable, leave it for libraries
+# More information here https://doc.rust-lang.org/cargo/guide/cargo-toml-vs-cargo-lock.html
+Cargo.lock
+
+# These are backup files generated by rustfmt
+**/*.rs.bk
+
+# MSVC Windows builds of rustc generate these, which store debugging information
+*.pdb
+
+# 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/
diff --git a/fonticulus/test/harness.py b/fonticulus/test/harness.py
index cb31350..6c7a9e9 100644
--- a/fonticulus/test/harness.py
+++ b/fonticulus/test/harness.py
@@ -1,7 +1,6 @@
-import argparse
 import pytest
 import tempfile
-import pathlib
+from pathlib import Path
 import subprocess
 import sys
 import io
@@ -13,8 +12,8 @@
 
 
 environment = os.environ.get("ENVIRONMENT", "debug")
-fonticulus = pathlib.Path(__file__).parent.parent.parent / "target" / environment / "fonticulus"
-home_dir = pathlib.Path(__file__).parent.resolve()
+fonticulus = Path(__file__).parent.parent.parent / "target" / environment / "fonticulus"
+home_dir = Path(__file__).parent.resolve()
 test_files = [pytest.param(x, id=x.name) for x in (home_dir / 'sources').glob("*.*")]
 
 def clean_font(ttjfont):
@@ -28,8 +27,8 @@ def clean_font(ttjfont):
         del ttjfont["gvar"] # FOR NOW
     return ttjfont
 
-def get_expectation(source: pathlib.Path):
-    expectation_file = home_dir / "expectation" / (pathlib.Path(source).name + ".expected")
+def get_expectation(source: Path):
+    expectation_file = home_dir / "expectation" / (Path(source).name + ".expected")
     expectation_file.parent.mkdir(exist_ok=True)
     if not expectation_file.exists():
         # Compile with fontmake
@@ -41,10 +40,11 @@ def get_expectation(source: pathlib.Path):
             build_arg = "-o variable -m"
         else:
             raise ValueError("Unknown source file type")
-        with tempfile.NamedTemporaryFile() as tf:
-            cmd = f"fontmake {build_arg} {source} --keep-overlaps --output-path {tf.name}"
+        with tempfile.TemporaryDirectory() as td:
+            filename = Path(td) / "out.ttf"
+            cmd = f"fontmake --verbose WARNING {build_arg} {source} --keep-overlaps --output-path {filename}"
             subprocess.run(cmd, shell=True, check=True)
-            ttjfont = TTJ(TTFont(tf))
+            ttjfont = TTJ(TTFont(filename))
         as_json = json.dumps(ttjfont, indent=4)
         with expectation_file.open("w") as f:
             f.write(as_json)
diff --git a/fonticulus/test/requirements.in b/fonticulus/test/requirements.in
new file mode 100644
index 0000000..99130b7
--- /dev/null
+++ b/fonticulus/test/requirements.in
@@ -0,0 +1,3 @@
+fontmake
+pytest
+recursive-diff