The project isn't offering any forms of payments at this point in time but you can be a part of the early development/ first team members.
If the project is unable to pay the dues to the workers on it, it does not originally have the status of a project, but perhaps an idea that is still under construction.
On this basis, it is not permissible for you to publish this offer in this section.
You can move the topic to the "Project and Developement" board.