# Latest **URL:** https://racket.discourse.group/latest.md?page=28 [Latest](https://racket.discourse.group/latest.md) · [Categories](https://racket.discourse.group/categories.md) · [Tags](https://racket.discourse.group/tags.md) **Page:** 29 --- ## [RacketCon 2024! call for participation](https://racket.discourse.group/t/racketcon-2024-call-for-participation/2733)
**Author:** [@jesse](https://racket.discourse.group/u/jesse)\ **Replies:** 4\ **Last updated:** [June 28, 2024, 1:50pm UTC](https://racket.discourse.group/t/racketcon-2024-call-for-participation/2733 "2024-06-28T13:50:47Z")
Greetings, Racketeers! Racket leadership has kicked off the planning for the next edition of RacketCon 2024. We are working on the precise dates -- we're looking at October (mostly likely the 5th and 6th) or possibly No… --- ## [PasteRack is timing out](https://racket.discourse.group/t/pasterack-is-timing-out/2984)
**Author:** [@badkins](https://racket.discourse.group/u/badkins)\ **Replies:** 3\ **Last updated:** [June 27, 2024, 9:36pm UTC](https://racket.discourse.group/t/pasterack-is-timing-out/2984 "2024-06-27T21:36:45Z")
FYI - clicking the PasteRack link at the top of the page redirects to http://pasterack.org/, but the site times out. --- ## [Mark all topics read?](https://racket.discourse.group/t/mark-all-topics-read/2983)
**Author:** [@badkins](https://racket.discourse.group/u/badkins)\ **Replies:** 4\ **Last updated:** [June 27, 2024, 1:08am UTC](https://racket.discourse.group/t/mark-all-topics-read/2983 "2024-06-27T01:08:59Z")
Is there a way to mark all topics as read in Discourse? --- ## [Racket meet-up at Haus Coffee, San Francisco: 2pm Sunday, June 30th](https://racket.discourse.group/t/racket-meet-up-at-haus-coffee-san-francisco-2pm-sunday-june-30th/2982)
**Author:** [@spdegabrielle](https://racket.discourse.group/u/spdegabrielle)\ **Replies:** 0\ **Last updated:** [June 26, 2024, 11:30am UTC](https://racket.discourse.group/t/racket-meet-up-at-haus-coffee-san-francisco-2pm-sunday-june-30th/2982 "2024-06-26T11:30:30Z")
Calling all Racket & Lisp enthusiasts in the sfbay! :coffee: Join us for a casual meet-up at Haus Coffee this Sunday, June 30th at 2pm. Code, chat, and connect with fellow and aspiring Racketeers. :arrow\_right: RSVP: Rac… --- ## [Building Racket-8.1 on Solaris 11.3 Sparc](https://racket.discourse.group/t/building-racket-8-1-on-solaris-11-3-sparc/2981)
**Author:** [@Nemo](https://racket.discourse.group/u/Nemo)\ **Replies:** 0\ **Last updated:** [June 25, 2024, 9:55pm UTC](https://racket.discourse.group/t/building-racket-8-1-on-solaris-11-3-sparc/2981 "2024-06-25T21:55:59Z")
Greetings. I am trying to build Racket-8.1 (BC) on Solaris 11.3 Sparc. All goes well until the build reaches cify-startup.rkt. It finishes compiling this and then stops with the announcement "out of memory". The mach… --- ## [Is there any way to bind clicking the window close box in order to tell the program running background killed?](https://racket.discourse.group/t/is-there-any-way-to-bind-clicking-the-window-close-box-in-order-to-tell-the-program-running-background-killed/2970)
**Author:** [@cametan](https://racket.discourse.group/u/cametan)\ **Replies:** 10\ **Last updated:** [June 24, 2024, 12:37pm UTC](https://racket.discourse.group/t/is-there-any-way-to-bind-clicking-the-window-close-box-in-order-to-tell-the-program-running-background-killed/2970 "2024-06-24T12:37:32Z")
Hello. I was planning to program Conway's Game of Life, life.rkt, in the functional way. #!/usr/bin/env racket #lang racket (require (only-in srfi/41 stream-for-each stream-from) (only-in srfi/43 vector-fold … --- ## [Converting slideshow to text?](https://racket.discourse.group/t/converting-slideshow-to-text/2978)
**Author:** [@JoeyEremondi](https://racket.discourse.group/u/JoeyEremondi)\ **Replies:** 1\ **Last updated:** [June 24, 2024, 12:31pm UTC](https://racket.discourse.group/t/converting-slideshow-to-text/2978 "2024-06-24T12:31:15Z")
Does anybody know if there's a way to get a text version of a #lang slideshow file? I'm eventually hoping to get the contents into org-mode so I can have a single file with my class's lecture notes, but just getting some… --- ## [Ffi libs and raco setup info.rkt](https://racket.discourse.group/t/ffi-libs-and-raco-setup-info-rkt/2974)
**Author:** [@matteo-daddio](https://racket.discourse.group/u/matteo-daddio)\ **Replies:** 2\ **Last updated:** [June 22, 2024, 10:30am UTC](https://racket.discourse.group/t/ffi-libs-and-raco-setup-info-rkt/2974 "2024-06-22T10:30:10Z")
Hello, I need to develop a ffi and I read The Racket Foreign Interface. Now I’m trying to understand how to install the correct libraries for each supported operating systems and I’m reading the Raco setup documentation… --- ## [What is the recommended workflow when developing packages?](https://racket.discourse.group/t/what-is-the-recommended-workflow-when-developing-packages/2975)
**Author:** [@rscho](https://racket.discourse.group/u/rscho)\ **Replies:** 2\ **Last updated:** [June 21, 2024, 11:41pm UTC](https://racket.discourse.group/t/what-is-the-recommended-workflow-when-developing-packages/2975 "2024-06-21T23:41:05Z")
Hi, What is your workflow when developing packages ? I'm working on the plot library, and right now I'm doing raco setup plot to install the changes I made to my local copy every time I modify the code. The annoying th… --- ## [How to add a public method to 3d-plot-area%?](https://racket.discourse.group/t/how-to-add-a-public-method-to-3d-plot-area/2971)
**Author:** [@rscho](https://racket.discourse.group/u/rscho)\ **Replies:** 3\ **Last updated:** [June 20, 2024, 1:38pm UTC](https://racket.discourse.group/t/how-to-add-a-public-method-to-3d-plot-area/2971 "2024-06-20T13:38:47Z")
Hi, I am trying to build a new 3d renderer for the plot package. The renderer is a 3d matrix viewer, where each index in the matrix matches a voxel in the plot. The current implementation is inspired by the existing rect… --- ## [(Auto) scrollbars in \`canvas%\`](https://racket.discourse.group/t/auto-scrollbars-in-canvas/2914)
**Author:** [@benknoble](https://racket.discourse.group/u/benknoble)\ **Replies:** 7\ **Last updated:** [June 17, 2024, 5:01pm UTC](https://racket.discourse.group/t/auto-scrollbars-in-canvas/2914 "2024-06-17T17:01:20Z")
I'm back with another scrollbar question :slight\_smile: This time you can demo with raco pkg install https://github.com/benknoble/frosthaven-manager#pict-text-display racket -l frosthaven-manager/gui/pict-text-display … --- ## [Scope and purpose of racket/gui](https://racket.discourse.group/t/scope-and-purpose-of-racket-gui/2965)
**Author:** [@ken](https://racket.discourse.group/u/ken)\ **Replies:** 17\ **Last updated:** [June 16, 2024, 10:18pm UTC](https://racket.discourse.group/t/scope-and-purpose-of-racket-gui/2965 "2024-06-16T22:18:18Z")
Hello, I'm working on putting a GUI on some Racket software I wrote. I've been playing around with racket/gui (and racket/gui/easy, which seems like a much more Racket-esque approach). What I'm finding is that racket/… --- ## [Is there any equivalent way to emulate symbol-macrolet of ANSI Common Lisp with the Racket's Syntax?](https://racket.discourse.group/t/is-there-any-equivalent-way-to-emulate-symbol-macrolet-of-ansi-common-lisp-with-the-rackets-syntax/2966)
**Author:** [@cametan](https://racket.discourse.group/u/cametan)\ **Replies:** 13\ **Last updated:** [June 16, 2024, 9:41pm UTC](https://racket.discourse.group/t/is-there-any-equivalent-way-to-emulate-symbol-macrolet-of-ansi-common-lisp-with-the-rackets-syntax/2966 "2024-06-16T21:41:34Z")
Hello. As the title says, is there any equivalent way to emulate symbol-macrolet of ANSI Common Lisp with the Racket's Syntax? Thanks. --- ## [How to require with prefix in Typed Racket?](https://racket.discourse.group/t/how-to-require-with-prefix-in-typed-racket/2963)
**Author:** [@charmonium](https://racket.discourse.group/u/charmonium)\ **Replies:** 7\ **Last updated:** [June 15, 2024, 10:51pm UTC](https://racket.discourse.group/t/how-to-require-with-prefix-in-typed-racket/2963 "2024-06-15T22:51:12Z")
Untyped racket has (require (prefix-in xml: xml)). Typed racket has (require/typed xml \[ #| lots of decls here |# \]). How do I "mix" them? --- ## [Scribble for interaction](https://racket.discourse.group/t/scribble-for-interaction/2964)
**Author:** [@hendrikboom3](https://racket.discourse.group/u/hendrikboom3)\ **Replies:** 2\ **Last updated:** [June 14, 2024, 6:26pm UTC](https://racket.discourse.group/t/scribble-for-interaction/2964 "2024-06-14T18:26:57Z")
Suppose I want to use scribble in a non-book context. For example, for writing messages to be written out during an interactive session with a user. Its tools for generating and formatting text and for embedding the ou… --- ## [Nova-bb, rcross don't work (Concrete abstractions)](https://racket.discourse.group/t/nova-bb-rcross-dont-work-concrete-abstractions/2627)
**Author:** [@Kartoffel](https://racket.discourse.group/u/Kartoffel)\ **Replies:** 7\ **Last updated:** [June 12, 2024, 8:04pm UTC](https://racket.discourse.group/t/nova-bb-rcross-dont-work-concrete-abstractions/2627 "2024-06-12T20:04:15Z")
DrRacket Installation and Setup (umn.edu) --- ## [Import for syntax transformer](https://racket.discourse.group/t/import-for-syntax-transformer/2959)
**Author:** [@damien\_mattei](https://racket.discourse.group/u/damien_mattei)\ **Replies:** 2\ **Last updated:** [June 11, 2024, 9:14am UTC](https://racket.discourse.group/t/import-for-syntax-transformer/2959 "2024-06-11T09:14:28Z")
hello, i'm refactoring one of my project with modules in scheme , it is running on different implementations of scheme (guile,racket, kawa,...) , i try to use R6RS or R7RS for compatibility. I have many modules. One o… --- ## [Using the scribble-math package with relative path for katex folder](https://racket.discourse.group/t/using-the-scribble-math-package-with-relative-path-for-katex-folder/2649)
**Author:** [@encomer](https://racket.discourse.group/u/encomer)\ **Replies:** 6\ **Last updated:** [June 11, 2024, 5:17am UTC](https://racket.discourse.group/t/using-the-scribble-math-package-with-relative-path-for-katex-folder/2649 "2024-06-11T05:17:43Z")
The scribble-math package is great for rendering LaTeX style formatted expressions. When used in multiple documents (e.g. quizzes, exams, class notes, et c.) it is very convenient to save time and space requiring only on… --- ## [Let us know when platforms specific packages have been updated to 8.12!](https://racket.discourse.group/t/let-us-know-when-platforms-specific-packages-have-been-updated-to-8-12/2712)
**Author:** [@spdegabrielle](https://racket.discourse.group/u/spdegabrielle)\ **Replies:** 14\ **Last updated:** [June 10, 2024, 12:40pm UTC](https://racket.discourse.group/t/let-us-know-when-platforms-specific-packages-have-been-updated-to-8-12/2712 "2024-06-10T12:40:02Z")
Please let us know when platforms specific packages have been updated to 8.12! The Void linux package has already been updated: https://voidlinux.org/packages/?arch=x86\_64&q=Racket thank you ! --- ## [How do I use the profiler libraries with GUI applications?](https://racket.discourse.group/t/how-do-i-use-the-profiler-libraries-with-gui-applications/2956)
**Author:** [@benknoble](https://racket.discourse.group/u/benknoble)\ **Replies:** 1\ **Last updated:** [June 9, 2024, 10:45pm UTC](https://racket.discourse.group/t/how-do-i-use-the-profiler-libraries-with-gui-applications/2956 "2024-06-09T22:45:32Z")
Has anyone had luck using profile-lib's profile-thunk (or profile-flame-graph's profile-thunk) on GUI applications? I tried a couple variants in Frosthaven Manager and consistently got no output data from profile-flame-g… --- ## [Is there any Redex implementation of a very minimal dependently typed Lambda Calculus core? Something like Elaboration-Zoo-02](https://racket.discourse.group/t/is-there-any-redex-implementation-of-a-very-minimal-dependently-typed-lambda-calculus-core-something-like-elaboration-zoo-02/2957)
**Author:** [@B0B](https://racket.discourse.group/u/B0B)\ **Replies:** 1\ **Last updated:** [June 8, 2024, 10:04pm UTC](https://racket.discourse.group/t/is-there-any-redex-implementation-of-a-very-minimal-dependently-typed-lambda-calculus-core-something-like-elaboration-zoo-02/2957 "2024-06-08T22:04:48Z")
I'd like to prototype/play-around-with a dependently typed language. I'm very new to Racket, but would like to use Redex (or any similar tool) to define some decent typing and evaluation rules. I've gone through the tw… --- ## [Suggestions on refactoring codes using Typed Racket](https://racket.discourse.group/t/suggestions-on-refactoring-codes-using-typed-racket/2941)
**Author:** [@Antigen-11](https://racket.discourse.group/u/Antigen-11)\ **Replies:** 11\ **Last updated:** [June 8, 2024, 4:30pm UTC](https://racket.discourse.group/t/suggestions-on-refactoring-codes-using-typed-racket/2941 "2024-06-08T16:30:50Z")
Hello everyone! Recently, there has been widespread discussion in the community about the performance of the Racket language. It applies to a benchmarks game and I find it interesting to solve those problems about DNA b… --- ## [Identifiers with dashes and the infix package](https://racket.discourse.group/t/identifiers-with-dashes-and-the-infix-package/2950)
**Author:** [@scolobb](https://racket.discourse.group/u/scolobb)\ **Replies:** 6\ **Last updated:** [June 7, 2024, 10:42pm UTC](https://racket.discourse.group/t/identifiers-with-dashes-and-the-infix-package/2950 "2024-06-07T22:42:25Z")
Hello, Almost out of sheer curiosity, is there a way to use identifiers with dashes with the infix package, with or without at-exp? I would like to be able to do something like this: #lang at-exp racket (require infix… --- ## [How to type amb in the redex exercise?](https://racket.discourse.group/t/how-to-type-amb-in-the-redex-exercise/2954)
**Author:** [@benknoble](https://racket.discourse.group/u/benknoble)\ **Replies:** 4\ **Last updated:** [June 6, 2024, 5:18pm UTC](https://racket.discourse.group/t/how-to-type-amb-in-the-redex-exercise/2954 "2024-06-06T17:18:43Z")
A long time ago I was looking at Exercise 6 in the Redex tutorial, and I stumbled on to the following: I though it would be straightforward to modify the grammar to accept a type (e.g. , (amb t e ...) or (amb e ... : t) … --- ## [Difference between Racket and Typed Racket with macro literals](https://racket.discourse.group/t/difference-between-racket-and-typed-racket-with-macro-literals/2946)
**Author:** [@shawnw](https://racket.discourse.group/u/shawnw)\ **Replies:** 5\ **Last updated:** [June 4, 2024, 2:35pm UTC](https://racket.discourse.group/t/difference-between-racket-and-typed-racket-with-macro-literals/2946 "2024-06-04T14:35:33Z")
With this untyped module: #lang racket/base (require (for-syntax racket/base syntax/parse)) (provide choose one two) (define-syntax (one stx) (raise-syntax-error stx "use of one outside of choose")) (define-syntax … --- ## [Call for Papers: ACM Workshop on Functional Software Architecture](https://racket.discourse.group/t/call-for-papers-acm-workshop-on-functional-software-architecture/2788)
**Author:** [@mike](https://racket.discourse.group/u/mike)\ **Replies:** 2\ **Last updated:** [June 4, 2024, 10:22am UTC](https://racket.discourse.group/t/call-for-papers-acm-workshop-on-functional-software-architecture/2788 "2024-06-04T10:22:11Z")
FUNARCH 2024, 6th September 2024, Milan, Italy. Co-located with ICFP 2024 Timeline Paper submission 3rd June 2024 Author notification 30th June 2024 Camera ready copy 18th July 2024 Workshop 6th Sep… --- ## [Typeless typed Racket](https://racket.discourse.group/t/typeless-typed-racket/2944)
**Author:** [@hendrikboom3](https://racket.discourse.group/u/hendrikboom3)\ **Replies:** 1\ **Last updated:** [June 2, 2024, 4:37pm UTC](https://racket.discourse.group/t/typeless-typed-racket/2944 "2024-06-02T16:37:51Z")
The languages typed/racket/no-check and typed/racket/base/no-check -- Do they supress all type checking? Or do they just suppress static type checking? --- ## [Distro Packagers: Introductions](https://racket.discourse.group/t/distro-packagers-introductions/2484)
**Author:** [@LiberalArtist](https://racket.discourse.group/u/LiberalArtist)\ **Replies:** 13\ **Last updated:** [June 2, 2024, 8:58am UTC](https://racket.discourse.group/t/distro-packagers-introductions/2484 "2024-06-02T08:58:34Z")
If you are a distro packager, feel free to introduce yourself in a reply to this post. To get things started, I'm Philip, and I maintain the Guix packages racket, racket-minimal, and zuo, as well as chez-scheme. I'm als… --- ## [Racket meet-up: Saturday, 1 June, 2024 at 18:00 UTC](https://racket.discourse.group/t/racket-meet-up-saturday-1-june-2024-at-18-00-utc/2940)
**Author:** [@spdegabrielle](https://racket.discourse.group/u/spdegabrielle)\ **Replies:** 1\ **Last updated:** [June 1, 2024, 6:13pm UTC](https://racket.discourse.group/t/racket-meet-up-saturday-1-june-2024-at-18-00-utc/2940 "2024-06-01T18:13:37Z")
In your timezone: 2024-06-01T18:00:00Z (UTC). (converter) At this meet-up: Hybrid Meet-ups? Show and tell News & rumours AOB This meet-up will be held at https://meet.jit.si/Racketmeet-up Racket meet-ups are on … --- ## [Naming convention for structs](https://racket.discourse.group/t/naming-convention-for-structs/2939)
**Author:** [@rvdalen](https://racket.discourse.group/u/rvdalen)\ **Replies:** 14\ **Last updated:** [May 31, 2024, 10:18pm UTC](https://racket.discourse.group/t/naming-convention-for-structs/2939 "2024-05-31T22:18:53Z")
Hi everyone, I am wondering if anyone else has run into this issue and if there is some commonly-used work-around? The issue is the name of my struct and the name of a binding for an instance of the struct usually ends… [Previous page](https://racket.discourse.group/latest.md?page=27) [Next page](https://racket.discourse.group/latest.md?page=29)