Monorepo with yarn workspaces requires yarn 3.2

packages/plugos-silverbullet-syscall/markdown.ts

@@ -0,0 +1,7 @@
+import { syscall } from "./syscall";
+
+import type { ParseTree } from "../silverbullet-common/tree";
+
+export async function parseMarkdown(text: string): Promise<ParseTree> {
+  return syscall("markdown.parseMarkdown", text);
+}