On 4/16/23 1:33 AM, Yuan Fu wrote: > Emacs 29 (and nightly) comes with a builtin support for tree-sitter. > Looking at emacsformacosx, all nightly builds since 2023/3/10 have > tree-sitter builtin. To try that out, you can follow this guide: > > https://archive.casouri.cc/note/2023/tree-sitter-in-emacs-29/index.html > > A easy way to distinguish between the third-party package and the > builtin support is to look at the prefix, tree-sitter-xxx is the > third-party one, treesit-xxx is the builtin one. > > > Yuan Nice. thanks for the link.  After setting up the built-in treesitter it does not crash. To clarify, the init file I am using for this case is: (add-to-list 'major-mode-remap-alist '(c-mode . c-ts-mode)) (add-to-list 'treesit-language-source-alist          '(c "https://github.com/tree-sitter/tree-sitter-c.git")) And the tree-sitter command line: $ type -a tree-sitter tree-sitter is /opt/homebrew/bin/tree-sitter $ tree-sitter --version tree-sitter 0.20.8 It does still fail with the external treesitter package. I tried on both v28 where it is required as well as v29. Drew -- mailto:drew@moseleynet.net