After the incremental parsing rewrite for injections (which was released in 22.03 https://helix-editor.com/news/release-22-03-highlights/#incremental-injection-parsing-rewrite), we can now do combined injections which lets us pull in some templating grammars. The most notable of those is embedded-template - a pretty straightforward grammar that covers ERB and EJS. The grammar and highlights queries are shared between the two but they have different injections.