When Bluesky CEO Jay Graber walked on stage at SXSW 2025 for her keynote discussion, she wore a large black T-shirt with her hair pulled back into a bun. At first glance, it might appear as though she’s following the same playbook that so many women in tech leadership have played before: downplaying her femininity

Bluesky CEO Jay Graber took a dig at Mark Zuckerberg with her own Latin shirt saying "A world without Caesars."

A Bluesky spokesperson said the network "returns meaningful choice and ownership to each individual user, instead of a single CEO."

Jay Graber’s got jokes. As the Bluesky CEO took the stage for her SXSW keynote on Monday, she wore a black T-shirt with black lettering across the chest, which declared, Mundus sine caesaribus. Or, “a world without Caesars.