diff --git a/.dockerignore b/.dockerignore
index c473064..95df651 100644
--- a/.dockerignore
+++ b/.dockerignore
@@ -1,20 +1,133 @@
-__pycache__
-*.pyc
-*.pyo
-*.pyd
+# Byte-compiled / optimized / DLL files
+__pycache__/
+*.py[cod]
+*$py.class
+
+# C extensions
+*.so
+
+# Distribution / packaging
 .Python
-env
+build/
+develop-eggs/
+dist/
+downloads/
+eggs/
+.eggs/
+lib/
+lib64/
+parts/
+sdist/
+var/
+wheels/
+pip-wheel-metadata/
+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
-.tox
+
+# Unit test / coverage reports
+htmlcov/
+.tox/
+.nox/
 .coverage
 .coverage.*
 .cache
 nosetests.xml
 coverage.xml
 *.cover
+*.py,cover
+.hypothesis/
+.pytest_cache/
+
+# Translations
+*.mo
+*.pot
+
+# Django stuff:
 *.log
-.git
-.mypy_cache
-.pytest_cache
-.hypothesis
+local_settings.py
+db.sqlite3
+db.sqlite3-journal
+
+# Flask stuff:
+instance/
+.webassets-cache
+
+# Scrapy stuff:
+.scrapy
+
+# Sphinx documentation
+docs/_build/
+
+# PyBuilder
+target/
+
+# Jupyter Notebook
+.ipynb_checkpoints
+
+# IPython
+profile_default/
+ipython_config.py
+
+# pyenv
+.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
+
+# PEP 582; used by e.g. github.com/David-OConnor/pyflow
+__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/
+
+tracevis_data/
+.git/
+.github/
diff --git a/Dockerfile b/Dockerfile
index a7cbae0..2e4168c 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,20 +1,18 @@
-FROM python:3.10.1-slim-bullseye
+FROM python:3.10-alpine
 
-ENV PYTHONUNBUFFERED=TRUE
-
-ENV TRACEVIS_OUTPUT_DIR=/tracevis_data/
-
-RUN mkdir -p /tracevis_data
+ENV PYTHONUNBUFFERED 1
+ENV TRACEVIS_OUTPUT_DIR /tracevis_data/
 
 WORKDIR /tracevis
 
 # Install requirements before copying whole source. (used for quick build)
 COPY requirements.txt .
 
-RUN pip install -r requirements.txt
+RUN pip install --no-cache-dir -U pip && \
+    pip install --no-cache-dir -r requirements.txt
 
 COPY . .
 
 ENTRYPOINT [ "python", "tracevis.py" ]
 
-CMD [ "-h" ]
\ No newline at end of file
+CMD [ "-h" ]
diff --git a/README.md b/README.md
index 6a5a41d..043bc5b 100755
--- a/README.md
+++ b/README.md
@@ -111,7 +111,7 @@ or with docker image:
 
 ```sh
 docker run \
-    --mount type=bind,source=/path/to/,target=/tracevis_data/ \
+    --mount type=bind,source=/path/to/results,target=/tracevis_data/ \
     ghcr.io/wikicensorship/tracevis --file /tracevis_data/file.json
 # OR
 docker run \