“2015 is the year of the tableflip.” So declares a mysterious single-page manifesto that was published Monday at table​flip.club and was widely​ shared and discussed online.

In the statement, the unnamed author calls out tech companies for gender discrimination and sexism, saying “women are leaving your tech company because you don’t deserve to keep us around.” She decries how women in tech have been looked over, put down, and pushed aside while “our male peers back-pat each others’ shitty work onwards to the next production incident.”

The manifesto ends with by calling women in tech to action, asking them to be more open about their experiences, to start their own companies, and to invest in other women-led startups.