It come from the idea of the “Vibe Shift”, which has recently gained a lot of traction in the political sphere. The term came out of a NY art collective called K-HOLE back in 2022, their founder Sean Monahan explained the current shift as follows.
“[. . .] the trajectory of the 2010s has been exhausted in a lot of ways. The culture-war topic no longer seems quite as interesting to people. Social media isn’t a place where you can be as creative anymore; all the angles are figured out. Younger people are less interested in things like quote-unquote cancel culture. These were kind of, like, the big pillars we used to navigate pop culture in the 2010s. And we had the rise of all these world-spanning, like, Sauron-esque tech platforms that literally have presences on every continent. People want to make things personal again.”
Translated to coding, it is trying to express the idea that the old way of coding is passé and that new generation of programmers will use new tools.