diff --git a/package/package.json b/package/package.json
index 3e3c3366..23d953a8 100644
--- a/package/package.json
+++ b/package/package.json
@@ -26,10 +26,26 @@
     "./code-block.css": "./dist/code-block.css",
     "./themes/*.css": "./dist/themes/*.css",
     "./themes": "./dist/themes/index.js",
-    "./languages": "./dist/languages/index.js",
-    "./languages/*": "./dist/languages/*.js",
-    "./prism/languages": "./dist/prism/languages/index.js",
-    "./prism/languages/*": "./dist/prism/languages/*.js",
+    "./languages": {
+      "types": "./dist/languages/index.d.ts",
+      "import": "./dist/languages/index.js",
+      "default": "./dist/languages/index.js"
+    },
+    "./languages/*": {
+      "types": "./dist/languages/*.d.ts",
+      "import": "./dist/languages/*.js",
+      "default": "./dist/languages/*.js"
+    },
+    "./prism/languages": {
+      "types": "./dist/prism/languages/index.d.ts",
+      "import": "./dist/prism/languages/index.js",
+      "default": "./dist/prism/languages/index.js"
+    },
+    "./prism/languages/*": {
+      "types": "./dist/prism/languages/*.d.ts",
+      "import": "./dist/prism/languages/*.js",
+      "default": "./dist/prism/languages/*.js"
+    },
     "./match-brackets": "./dist/extensions/matchBrackets/index.js",
     "./highlight-brackets": "./dist/extensions/matchBrackets/highlight.js",
     "./match-tags": "./dist/extensions/matchTags.js",
diff --git a/package/src/core.ts b/package/src/core.ts
index 91651721..0aebf7f5 100644
--- a/package/src/core.ts
+++ b/package/src/core.ts
@@ -296,7 +296,8 @@ const numLines = (str: string, start = 0, end = Infinity) => {
 }
 
 /** Object storing all language specific behavior. */
-const languageMap: Record<string, Language> = {}
+const languageMap: Record<string, Language> =
+	((globalThis as any)[Symbol.for("prism-code-editor.languageMap")] ||= {})
 
 const editorTemplate = /* @__PURE__ */ createTemplate(
 	"<div><div class=pce-wrapper><div class=pce-overlays><textarea class=pce-textarea spellcheck=false autocapitalize=off autocomplete=off>",
diff --git a/package/src/prism/core.js b/package/src/prism/core.js
index 862b2ded..499fafd4 100644
--- a/package/src/prism/core.js
+++ b/package/src/prism/core.js
@@ -1,19 +1,24 @@
 // Slimmed down Prism core with most high level functions removed
 
-var plainTextGrammar = {};
-var rest = Symbol();
-var tokenize = Symbol();
+var globalKey = Symbol.for("prism-code-editor.prism");
+var prismGlobal = (globalThis[globalKey] ||= {});
+
+var plainTextGrammar = (prismGlobal.plainTextGrammar ||= {});
+var rest = (prismGlobal.rest ||= Symbol.for("prism-code-editor.prism.rest"));
+var tokenize =
+	(prismGlobal.tokenize ||= Symbol.for("prism-code-editor.prism.tokenize"));
 
 /** @param {*} id */
 var resolve = id => typeof id == 'string' ? languages[id] : id;
 
 /** @type {Record<string, any>} */
-var languages = {
-	plain: plainTextGrammar,
-	plaintext: plainTextGrammar,
-	text: plainTextGrammar,
-	txt: plainTextGrammar,
-};
+var languages =
+	(prismGlobal.languages ||= {
+		plain: plainTextGrammar,
+		plaintext: plainTextGrammar,
+		text: plainTextGrammar,
+		txt: plainTextGrammar,
+	});
 
 /**
  * @param {string} text