Matrix is now included

v26.9.20

Add 'Matrix' package installation in Dockerfile

Push container to ghcr.io

v26.9.19

Enable push for Docker build in workflow

Fix tagging

Comment out push condition in Docker build workflow

Commented out the push condition for Docker build.

Improved workflows

v26.9.17

Add latest tag to Docker image configuration

Smaller images

Comment out pipx cache purge in Dockerfile

Commented out pipx cache purge command due to unavailability on Debian.

initial release

Update README with usage instructions

Added usage instructions for the R-Devcontainer.