diff --git a/.editorconfig b/.editorconfig
index d3a8b5b..0463d52 100644
--- a/.editorconfig
+++ b/.editorconfig
@@ -2,7 +2,6 @@ root = true
 
 [*]
 charset = utf-8
-end_of_line = lf
 insert_final_newline = true
 trim_trailing_whitespace = true
 
diff --git a/.gitattributes b/.gitattributes
index 3f91ed6..3962906 100644
--- a/.gitattributes
+++ b/.gitattributes
@@ -1,4 +1,4 @@
-* text eol=lf
+* text=auto eol=lf
 
 examples/crlf-line-endings.py eol=crlf
 examples/mojo2-grammar-crlf.py eol=crlf
diff --git a/.gitignore b/.gitignore
index ce6873a..44c1266 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,23 +1,26 @@
 # Rust artifacts
-/Cargo.lock
-/target/
+Cargo.lock
+target/
 
 # Node artifacts
-/build/
-/node_modules/
+build/
+prebuilds/
+node_modules/
+*.tgz
 
 # Swift artifacts
-/.build/
+.build/
+
+# Go artifacts
+go.sum
+_obj/
 
 # Mojo artifacts
-/dist/
+.venv/
+dist/
 *.egg-info
 *.whl
 
-# Zig artifacts
-/zig-cache/
-/zig-out/
-
 # C artifacts
 *.a
 *.so
@@ -30,7 +33,6 @@
 /examples/*/
 
 # Grammar volatiles
-dsl.d.ts
 *.wasm
 *.obj
 *.o
diff --git a/bindings/python/build/lib/tree_sitter_mojo/__init__.py b/bindings/python/build/lib/tree_sitter_mojo/__init__.py
deleted file mode 100644
index 8d85193..0000000
--- a/bindings/python/build/lib/tree_sitter_mojo/__init__.py
+++ /dev/null
@@ -1,5 +0,0 @@
-from ._tree_sitter_mojo import lib as _lib, ffi as _ffi
-
-def language():
-    """Get the tree-sitter language for this grammar."""
-    return int(_ffi.cast("uintptr_t", _lib.tree_sitter_mojo()))
diff --git a/runtime/queries/mojo/highlights.scm b/runtime/queries/mojo/highlights.scm
index 20842ae..c981e11 100644
--- a/runtime/queries/mojo/highlights.scm
+++ b/runtime/queries/mojo/highlights.scm
@@ -226,9 +226,11 @@
 [
   "and"
   "or"
+  "not in"
   "in"
   "not"
   "del"
+  "is not"
   "is"
 ] @keyword.operator