racket-gui-easy VS 7guis

Looks like you're already in Emacs. I strongly recommend racket-mode as mentioned in another thread.

With regard to prototyping GUI's I'd suggest taking a look at https://github.com/mfelleisen/7GUI. https://github.com/Bogdanp/racket-gui-easy could also be a good place to start.

With regard to Racket more generally, I'm probably not the best person to ask since I had a very high friction start where I just banged my head against the wall until things made sense.

I took a similar approach in my Racket library, gui-easy[1,2]. Though I opted to not defer any computations, any observable (similar to a signal from the post) update propagates to observers immediately, and there's no incrementality -- observables are just boxes whose changes you can subscribe to. Regarding the disposal problem, I used weak references and regarding the where to take observables and where to take concrete values as input question, I decided that any place an observable can go in, a concrete value can as well and it's been a convenient choice so far. For fun, here's an example[3] that builds the todo UI from the post.

[1]: https://docs.racket-lang.org/gui-easy/index.html

For native apps, I would devote coding resources to the Guile-GI project which generates Guile bindings to the cross-platform Gtk C library by way of the Gnome Object Introspection and Reflection library. I would also port the Racket gui-easy library over to Guile-GI so declarative GUIs could be written.

There is also gui-easy a declarative gui framework: https://docs.racket-lang.org/gui-easy/index.html

It’s not the only version either

See https://github.com/Bogdanp/racket-gui-easy/tree/master/examp...

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The Flight Booker task from 7GUIs had certain date requirements that were easier to satisfy if I used a preexisting package. justinmimbs/date package had support for everything I needed to do and more but it did things a little differently.