(Reposting a blog post by @zyd copy-pasted in full from: this webpage)

As of 2026-05-18 … sort of.

Every Lisp, Scheme, and Lisp-adjacent project listed is a non-toy implementation that is at least somewhat active. When I first wrote this article (2026-03-12), most Lisps did not have a policy or even public stance on LLM contributions. In such cases I posted to their bug trackers or discussion lists to ask. Most maintainers kindly responded.

Every link is either a document or issue stating the project’s LLM policy, or a link to an open issue. Roughly categorized according to how strongly for or against LLM contributions.

If I’m missing a project that should be listed, lemme know.

• Fennel
• STklos Scheme
• Clojure
• ECL

• Loko Scheme

• Janet exception given for tests and bug reproductions
• GNU CLISP against on a specific reading of copyright law
• Emacs Lisp temporarily against LLMs, waiting for official policy
• Hy maintainer recommends against LLM contributions, no actual policy

• Chicken Scheme
• Chibi Scheme
• Cyclone Scheme
• Gambit
• Gauche
• Gerbil Scheme LLM generated code potentially in source tree
• Clasp
• CCL

• Bigloo
• Coalton
• Kawa Scheme
• Sagittarius Scheme
• Jank doesn’t accept external LLM contributions but permits usage by core developers
• Racket LLM generated code in source tree
• SBCL LLM generated code in source tree
• Carp LLM generated code in source tree

• Scheme 48 open issue
• Chez Scheme at least one maintainer is against, another skeptical, open issue
• Guile Scheme likely against but nothing officially stated, open issue
• MIT Scheme open issue
• ABCL open issue
• LFE open issue

#tech #software #Lisp #LispLang #SchemeLang #SchemeLang #GuileScheme #AI #LLM #LLMs #VibeCoding #AntiAI

Found out about this while i was scrolling through andy windo blog, #Wastrel compiles Wasm modules to C, and thence to native code. we can compile #guilescheme #hoot code to native code.

https://codeberg.org/andywingo/wastrel

Figure out what you can make in your pantry with #GuileScheme! Here's little script that will print some recipes if you give it a recipe file and a list of ingredients.

https://codeberg.org/some/cookbook

#scheme #commandline #cli #programming #recreationalprogramming

@screwlisp @kentpitman I’m just reading up on the MIT-Scheme condition system. Recent efforts to standardize this are defined in SRFI-255: “Restarting conditions”.

An older standards condition systems in Scheme was defined in SRFI-35: “Conditions”. And #Guile users can use the Guile implementation of SRFI-35 to make use of it.

I wish I had known about this two weeks ago when we first started talking about it on the #LispyGopherClimate show, but better late than never, I guess.

#tech #software #Lisp #CommonLisp #Scheme #SchemeLang #R7RS #MITScheme #Guile #GuileScheme

Ohooo   Guile 3.0.11 has just been released. The SRFI-207 String-notated bytevectors look kind of nice. And inbuilt threading functions too 7.5.48 SRFI-197: Pipeline Operators.

#Guile #GuileLang #Scheme #GuileScheme

Quoting the memo:

The outgoing Steering Committee was elected in 2009 and successfully oversaw the production and ratification of the R7RS small language report until 2013. Unfortunately, during the protracted initial development of the R7RS large language after that, it fell dormant.

The current Scheme Working Group resolved in September 2025 to ask the Steering Commitee for a new election because it felt that after such long dormancy the outgoing Steering Committee was no longer able, as a group, to make and implement decisions effectively.

The Scheme standardization process charter says, ‘The Steering Committee itself shall establish procedures for replacing its members.’ The outgoing Steering Committee unanimously decided to delegate this task to the current Working Group. The Working Group has very closely modelled the procedure to be used this time on the procedure used last time.

The Working Group has written a statement to candidates and voters explaining what it hopes for in a new steering committee.

Lobste.rs thread

#tech #software #Scheme #SchemeLang #ProgrammingLanguage #R7RS #R7RSLarge #Lisp #FunctionalProgramming #Guile #GuileScheme #ChezScheme #ChickenScheme #GambitScheme #RacketLang #Racket

I sat down the other day to re-look through David Thompson guile-bstructs library, as a learning exercise.

I re-learnt a few things I didn't know before. Like how far it's possible to push syntax-rules/case. I've never quite seen anything like it before.

I've said it before, but scheme syntax-rule related stuff isn't the most intuitive thing. Fear of Macros is still the best explanation I've read; but doesn't show off the capability quite like that library does.

#Scheme #Guile #GuileScheme

I don't know, maybe the CPU is into it? I'm not judging. All jokes aside and as usual, really cool stuff by the Spritely people.
https://spritely.institute/news/announcing-spritely-oaken.html

#lisp #scheme #GuileScheme

This took me three months (a month longer than I had hoped), but I finally have merged it into the main branch!

This patch rewrites the Emacs Lisp lexer and parser in Scheme using Scheme code that is 100% compliant with the #R7RS standard, so it should now work across all compliant Scheme implementations. Previously the old parser relied on #Guile -specific regular expressions.

This patch also implements a new feature where a stack trace is printed when an error occurs. This of course makes debugging much, much easier. Previously the old parser did not keep track of where code evaluation was happening, it simply produced lists without source location information. The new parser constructs an abstract syntax tree (AST) and source locations are attached to the branches of the tree which can be used in error reporting and stack traces.

Next I will make whatever minor tweaks might be necessary to get my Emacs Lisp interpreter run on other Scheme implementations, in particular MIT Scheme, Gambit, Stklos, and Gauche. I would also like to try to get it running on Chicken and Chez, although these are going to be a bit more tricky.

Then I will continue with the task of implementing a new declarative GUI library.

#tech #software #FOSS #FunctionalProgramming #Lisp #Scheme #SchemeLang #EmacsLisp #Emacs #Schemacs #GuileScheme