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One of the things I like about Racket is that it has a cross platform GUI built on GTK in the standard library[1]. It also has a GUI builder app (though I’ve never used it so can’t say how good it is)[2]

1. https://docs.racket-lang.org/gui/

2. https://github.com/Metaxal/MrEd-Designer

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I’ve heard that. How do you find racket for speed and also interactive development?

I don’t mind a bit of scheme / racket, so would be curious to jump in.

Racket is not so interactive: https://gist.github.com/vindarel/c1ef5e043773921e3b11d8f4fe1...

My most recent example is a prime sieve I wrote in Racket which was at least 10% faster than the Python implementation (can’t remember the exact number right now) I modeled it after, and then another 10% faster than that when I converted it to typed-racket[1]

For interactive development it’s true Racket isn’t as heavy into top level development as other lisps, but I often run my code and then play around with modifications to it in the repo afterwards using racket-mode in Emacs.

[1] https://github.com/diego-crespo/Primes/blob/drag-race/PrimeR...

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