You can contribute to interface translations using a tool called fink.
Copy the URL of the CISO Assistant GitHub repository: https://github.com/intuitem/ciso-assistant-community
Visit fink and paste the URL you just copied.
Sign in using your GitHub account.
Click the 'fork' button at the bottom of the page. You may need to refresh the page to start contributing.
Select the language(s) you wish to translate, or add new ones.
Edit translations.
When you are done, you can press the button at the bottom of the page to push the changes you made.
When your translations are ready, submit a pull request on https://github.com/intuitem/ciso-assistant-community.
Read fink's user guide for more information.