Use script install otc_service.sh on a small machine with EIP on the internet.
> openssl req -x509 -sha256 -nodes-days 730 -newkey rsa:4096 -keyout alexa_otc_ss.key -out alexa_otc_cert.pem
> sudo firewall-cmd --permanent --zone=public --add-port=5443/tcp --add-service=https
Create a language label file (once):
cd src
pybabel extract -F babel.cfg -o messages.pot .
Start a new language (e.g. for language de):
cd src
pybabel init -i messages.pot -d translations -l de
Update the language label translation file with new/chaged labels:
cd src
pybabel update -i messages.pot -d translations
Finally, compile the messages:
cd src
pybabel compile -d translations