kobold VS cross-toolchains

https://github.com/maciejhirsz/kobold is kind of like svelte in rust. It is pretty new (announced this month?). The difficulty with that approach is the integration with rust analyzer and rustfmt. Macros don't work with formatting and rust analyzer can have difficulty with them. Frameworks like Leptos and Dioxus keep the macros isolated to the view, but for a svelte like framework you need the whole file to be a macro.

That does create a bunch of little .js files unfortunately, but they are quite easy to bundle for production. Ideally trunk should be doing that itself (as per closing remarks in the post).

Looks like cross is the easiest way to get something cross-compiled but its Mac support is blocked behind building your own build image. Even that repo says that it might be broken.

Your target is not directly supported (licensing issues I presume), but there seems to be a way to create your own image and then use it. It's worth a try.

A lot of work has been spent making the process as painless as possible. A crosstool-ng image is slightly more complex, but still quite easy: you just need a valid config file. The basic logic can be found here, and cross-toolchains has a few more examples.