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deepmind.google·6d ago
AI Engineering
Lobsters·Jun 18·5 min read
Changes in Emacs 31 I'm Already Daily Driving
TL;DR
For years, configuring tree-sitter in Emacs required complex manual setup, which was cumbersome for users. Emacs 31 simplifies this process by automating the configuration of tree-sitter language modes.
✦ Why It Matters
Engineers can now configure tree-sitter in Emacs with minimal effort, enhancing their coding efficiency.
Key Takeaways
- Explore the new automated tree-sitter setup in Emacs 31.
- Reduce manual configuration time for language modes.
- Leverage built-in features to enhance coding efficiency.
- Stay updated on Emacs 31 changes for improved workflows.
Full Summary
Emacs, a popular text editor among developers, has long required users to manually set up tree-sitter, a parser generator tool, to enable syntax highlighting and code navigation for various programming languages. In the upcoming Emacs 31, this process is significantly streamlined, eliminating the need for users to manually populate the 'treesit-language-source-alist' or call 'treesit-install-language-grammar'.
Instead, the new version automates these tasks, making it easier for users to get started with tree-sitter. As of mid-2026, users can expect a more intuitive experience without the previous setup hurdles.
This change is part of a broader effort to enhance Emacs's built-in capabilities, reducing reliance on external packages. The implications for developers include faster onboarding and improved productivity when working with multiple programming languages.