A silly one :)

scripts/build-version.js

 
 const data = JSON.stringify(
   {
-    asar: `excalidraw.asar`,
+    asar: "excalidraw.asar",
     version: versionDate(now),
   },
   undefined,

src/data/json.ts

     null,
     2,
   );
-  const fileName = `library.excalidrawlib`;
+  const fileName = "library.excalidrawlib";
   const blob = new Blob([serialized], {
     type: "application/vnd.excalidrawlib+json",
   });