We have a Matrix space for general discussion, support and announcements about Project Segfault over at this link.
Our primary email address is contact@projectsegfau.lt. You can use this as a way to send feedback or other stuff to us if you don't have or don't want to make a Matrix account. When waiting for us to answer make sure to check your spam, since some email providers block non-popular domains.
You can contact individual members by using the links provided in the team page.