We are pleased that you want to get involved! Here is more options to help. You can:
Everything will be helpful!
If you want to contribute to the code – become a Trinity Desktop Developer, you can find more information in the Development section.
It is very easy to engage in translating Trinity Desktop Environment! Here is a TDE Weblate Translation Workspace (TWTW), where you can register and start working on translations using a web interface. There is no need to set up the environment and configure the application, no need to learn how to work with GIT. If you prefer to work offline with special translation applications, it is not a problem – through the TWTW you can get PO files and then upload them back. Look for more information about TWTW on Wiki.
If you want to get involved by reporting issues or providing help to other users, look at the Support section, where you will find information how you can report issues and search for their solutions as well as how to contact other users and developers. You can also follow the Mastodon channel @tde@floss.social.
As well as involvement in developing, reporting issues and their solutions, providing support, donation is also very important. Without your support, it would be difficult to do Trinity Desktop better. You can find more information in the Donations section.