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+[[!meta title="One year progress update Schemacs (formerly Gypsum)"]]
+[[!meta copyright="Copyright © 2025 Ramin Honary"]]
+[[!inline pages="internal(2025/info/schemacs-nav)" raw="yes"]]
+
+<!-- Initially generated with emacsconf-publish-talk-page and then left alone for manual editing -->
+<!-- You can manually edit this file to update the abstract, add links, etc. --->
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+# One year progress update Schemacs (formerly Gypsum)
+Ramin Honary (he/him) - Pronunciation: "Rah-mean" (hard-H) "Ho-na-ree", Mastodon (preferred): ; blog: <https://tilde.town/~ramin_hal9001>; Codeberg: <https://codeberg.org/ramin_hal9001/schemacs> - SourceHut: <https://sr.ht/~ramin_hal9001>
+
+
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+[[!inline pages="internal(2025/info/schemacs-before)" raw="yes"]]
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+During EmacsConf 2024  last year I presented my  work on a
+clone of GNU Emacs written in Scheme which also clones the
+Emacs  Lisp programming  language.  In  this talk,  I will
+briefly present an overview of  the project similar to the
+talk I gave last year,  and then discuss the progress that
+I have made on this project in the past year.
+
+To quote the description from the presentation I gave last
+year:
+
+> Unlike  other   editors  which  only  clone   the  Emacs
+> keybindings  (Edwin,  Jed,  jEdit, Jove,  Lem,  MG,  Yi,
+> Zile), I hope  my Emacs clone will also  fully clone the
+> Emacs Lisp programming language well enough that many of
+> the  packages in  ELPA, Non-GNU  ELPA, and  perhaps even
+> MELPA,  can be  used  in  [Schemacs, formerly  "Gypsum"]
+> without any modification.   I would also like  to talk a
+> little bit about how I  am implementing it (the software
+> architecture), and invite others to contribute.
+> 
+> I think  my project is  of interest to many  Emacs users
+> because,  firstly,  I  have  personally  spoken  with  a
+> relatively  large number  of people  who have  expressed
+> interest  in   making  Emacs  programmable   in  Scheme.
+> Secondly, there is a good amount of prior art for Scheme
+> implementations of Emacs. There are even builds of Emacs
+> that  link  to  Guile  which  provides  a  "scheme-eval"
+> built-in  function that  translates  between Elisp  data
+> types and  Scheme data types. The  Guile compiler itself
+> ships with an  Emacs Lisp compiler as  well, although it
+> does not provide enough of Emacs's built-in functions to
+> be of much use.
+
+The progress I have made so far:
+
+-   Ported  all  Guile-specific  parts  of  the  Emacs  Lisp
+    interpreter  to  fully standards-compliant  R7RS  Scheme
+    code.   The  interpreter now  runs  on  a few  different
+    Scheme implementations, not just Guile.  The GUI remains
+    Guile-only for now.
+
+-   Implemented a new R7RS-compliant  lexer and parser which
+    constructs an Abstract Syntax Tree (AST) data structure,
+    making  it  easier to  find  the  source of  errors  and
+    produce informative back traces.
+
+-   Implemented enough  of the Emacs Lisp  interpreter to be
+    able  to load  the "subr.el"  source file,  this defines
+    what  you  might  call  the "core"  of  the  Emacs  Lisp
+    language, including macros such as "defun" and "lambda."
+
+My primary  goal continues  to be  to make  it as  easy as
+possible   for  other   people  to   contribute  to   this
+project.  Pretty soon  it should  be possible  to run  the
+Emacs Regression Test suite (ERT) in the cloned Emacs Lisp
+interpreter. Once this  is done, we can run  the same test
+code used  during the  building and  testing GNU  Emacs to
+test  Schemacs. Hopefilly  then,  anyone will  be able  to
+select a failing  test, write code to make  the test pass,
+and submit a patch.
+
+About the speaker:
+
+I am  Ramin Honary, I  am have been  professional software
+engineer for 17 years and I  have always had a passion for
+functional programming  languages, especially  Haskell and
+the Lisp family of languages.
+
+
+
+[[!inline pages="internal(2025/info/schemacs-after)" raw="yes"]]
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+[[!inline pages="internal(2025/info/schemacs-nav)" raw="yes"]]
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