The same language server is used for elixir and heex modes.
* lisp/progmodes/eglot.el (eglot-server-programs): Add heex-ts-mode.
((java-mode java-ts-mode) . ("jdtls"))
(dart-mode . ("dart" "language-server"
"--client-id" "emacs.eglot-dart"))
- ((elixir-ts-mode elixir-mode) . ("language_server.sh"))
+ ((elixir-mode elixir-ts-mode heex-ts-mode) . ("language_server.sh"))
(ada-mode . ("ada_language_server"))
(scala-mode . ,(eglot-alternatives
'("metals" "metals-emacs")))