A dockerized version of MateCat (https://www.matecat.com/) - The CAT tool that works for you.
The documentation left me a bit wondering if it was possible to run this in containters - and it is.
docker compose up -dTo upload file for translation, first sign up locally. After clicking 'Sign Up' from the top-right user icon, enter the apache docker container:
docker-compose exec apache /bin/bash
and print the mail queue log file:
cat storage/log_archive/mail_queue.log
This will contain the mail body with the confirmation email link.