You can support TSX and not support client side rendering. I never said anything about client-side rendering. There's no client-side dependencies to TSX at all. Even optionally depending on `lib.dom.d.ts` for a nice Types experience from a .d.ts file doesn't really mean a client-side dependency as a types-only dependency.

The functions in Boxwood are so close already to the necessary shape for a JSX function (it's just `jsx(tagNameOrComponentFunction, properties, children)`) there's not a lot you actually need to do to get nearly "free" JSX support even if you didn't want to put the work into a .d.ts file to get nice Types back out and just did `export type JSX.InternalElements = any`.

That said, the point about `lib.dom.d.ts` is that building the types can be a lot easier than it seems and need only a couple dozen lines to support a lot of rich typechecking including MDN documentation links in hover tooltips.

From personal experience, with multiple libraries, it is a really nice developer experience to have good TSX type checking and type documentation. Auto-complete along speeds up template development and the number of times I've used the MDN link in a property (attribute) hover to check support statistics or edge case notes in the documentation is surprisingly high.