Thanks!!
Vite is specifically used for bundling the frontend and chosen due to the vast ecosystem of plugins that people use for it. Tailwindcss is a great example, others here: https://vite.dev/plugins/
Bun does quite a bit more. In this context it’s used as a runtime and a package manager, and automatically handles the workspaces aspect for shared types. While you might be able to achieve all of bhvr with just Bun I chose to stick with Vite due to the number plugins, tutorials, setups, etc. that all use it. Just keeps things simple and easy!