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      Very impressive project, almost 100% written in Racket!

      Racket is by far one of the languages I still use the most. I’ve tried looking at other languages, but Racket provides a lot of convenience for me. I’ve never tried writing a complicated GUI with it, but this looks like an excellent project to get ideas and learn from. Kudos to Alex for the work he’s done on this!

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      racket’s gui toolkit is extremely pleasant to use, and when you factor in packaging the result as a cross-platform executable it beats pretty much everything else out there. the only downsides are that you will end up having to write a lot of custom widgets yourself (e.g. the last time i wanted a date picker i couldn’t find one, i ended up just using a text field), and that it takes up a ton of RAM. i really hope they fix the latter sometime soon; i currently stick with ocaml+gtk because it produces small executables with a small memory footprint, but i feel like writing gui apps would be more productive in racket than in any version of gtk.

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        How much RAM does it use compared to something like Electron or Swing?

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          i think less than electron, but ~200 megs just to load the basic gui framework and pop up a hello world message box.

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            FWIW last time I tried it, Electron Hello World was about 40MB of RAM on Windows.

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      I’m genuinely interested if that GUI can be used with framebuffer “backend” on Linux for embedded devices, using the DRM only.

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        Currently it isn’t possible. It would require implementing the base widgets (rendering and input events.) Part of an implementation could be simplified by using the existing racket/draw library which sits on top of cairo.