Monorepo with yarn workspaces requires yarn 3.2

packages/plugos/types.ts

@@ -0,0 +1,22 @@
+import { System } from "./system";
+
+export interface Manifest<HookT> {
+  requiredPermissions?: string[];
+  functions: {
+    [key: string]: FunctionDef<HookT>;
+  };
+}
+
+export type FunctionDef<HookT> = {
+  path?: string;
+  code?: string;
+  env?: RuntimeEnvironment;
+} & HookT;
+
+export type RuntimeEnvironment = "client" | "server";
+
+export interface Hook<HookT> {
+  validateManifest(manifest: Manifest<HookT>): string[];
+
+  apply(system: System<HookT>): void;
+}