Use dev version of texmath.

cabal.project

@@ -9,6 +9,10 @@ constraints: skylighting-format-blaze-html >= 0.1.1.3,
              -- for now (commercialhaskell/stackage#7545):
              data-default-class <= 0.2, data-default <= 0.8
 
+source-repository-package
+  type: git
+  location: https://github.com/jgm/texmath.git
+  tag: 028e3a7876c66fbe09b2f074bd735258f776814b
 
 source-repository-package
   type: git

stack.yaml

@@ -13,12 +13,13 @@ extra-deps:
 - skylighting-core-0.14.6
 - skylighting-0.14.6
 - skylighting-format-typst-0.1
-- texmath-0.12.8.13
 - citeproc-0.8.1.3
 - commonmark-extensions-0.2.6
 - commonmark-pandoc-0.2.3
 - git: https://github.com/jgm/typst-hs.git
   commit: 66f0ce38f95a6807dc810111dabd7bd21ca32374
+- git: https://github.com/jgm/texmath.git
+  commit: 028e3a7876c66fbe09b2f074bd735258f776814b
 ghc-options:
    "$locals": -fhide-source-paths -Wno-missing-home-modules
 resolver: lts-23.0