The Unified toolchain is an extremely ambitious project. when Rome announced their plan for unified toolchain, I expected it to fail as the next HN reader. and turned out to be right. Bun is also attempting it. Thye have made tremendous progress but they are also competing against node, and thus I don't expect to for bun to go mainstream. However, despite the difficulties, I strongly believe that Vite+ can achieve it…
Well, Rome failed because they run out of money while the project weren't finished yet. While Vite+ seems to have most of the things done already, so I'd consider it a success for now, what is left to see if that the companies using Vite already are willing to pay for Vite+.
It was also unfortunately timed. When they started they were competing against webpack, but right around the start of the project compilers written in more performant languages like ESBuld and SWC start to take off and out compete Rome before it even got off the ground.