After suspending a VM with a running docker container and resuming it, the connection to the container might be broken. To fix this run:
systemctl restart NetworkManager docker
Clone the master branch
Make your changes
Commit your changes
git checkout -b feature/yournewfeaturename
git push --set-upstream origin feature/yournewfeaturename
Create the pull request in the GUI (self explanatory)
ffmpeg -i in.mkv -codec copy out.mp4
Go to Virtual Network Editor and edit VMNet0, deactivate all adapters that might be causing issues (only leave the one to be bridged).