diff --git a/packages/@liexp/backend/src/test/vitest.base-config.ts b/packages/@liexp/backend/src/test/vitest.base-config.ts
index 5e1666dfd..88059098c 100644
--- a/packages/@liexp/backend/src/test/vitest.base-config.ts
+++ b/packages/@liexp/backend/src/test/vitest.base-config.ts
@@ -1,31 +1,50 @@
 import { URL } from "url";
 import viteTsconfigPaths from "vite-tsconfig-paths";
-import { defineConfig } from "vitest/config";
+import { defineConfig, type ViteUserConfig } from "vitest/config";
+
+type ToAlias = (mockPath: string) => string;
 
 export const PathnameAlias =
-  (url: string) =>
-  (mockPath: string): string => {
-    return new URL(mockPath, url).pathname;
+  (url: string): ToAlias =>
+  (mockPath) => {
+    // console.log("mockPath", mockPath, url);
+    const pathname = new URL(mockPath, url).pathname;
+    // console.log("pathname", pathname);
+    return pathname;
   };
 
-const toAlias = PathnameAlias(import.meta.url);
+export const extendBaseConfig = (
+  root: string,
+  configFn: (toAlias: ToAlias) => ViteUserConfig,
+) => {
+  const toBackendAlias = PathnameAlias(import.meta.url);
+  const toAlias = PathnameAlias(root);
+  const config = configFn(toAlias);
 
-export const baseConfig = defineConfig({
-  root: toAlias("./"),
-  test: {
-    environment: "node",
-    watch: false,
-    alias: {
-      sharp: toAlias("mocks/sharp.mock.js"),
-      canvas: toAlias("mocks/canvas.mock.js"),
-      "pdfjs-dist/legacy/build/pdf.js": toAlias("mocks/pdfjs.mock.js"),
-      "@blocknote/core": toAlias("mocks/blocknote-core.mock.js"),
-      "@blocknote/react/**": toAlias("mocks/blocknote-react.mock.js"),
+  return defineConfig({
+    root: toAlias("./"),
+    test: {
+      environment: "node",
+      watch: false,
+      alias: {
+        sharp: toBackendAlias("lib/test/mocks/sharp.mock.js"),
+        canvas: toBackendAlias("lib/test/mocks/canvas.mock.js"),
+        "pdfjs-dist/legacy/build/pdf.js": toBackendAlias(
+          "lib/test/mocks/pdfjs.mock.js",
+        ),
+        "@blocknote/core": toBackendAlias(
+          "lib/test/mocks/blocknote-core.mock.js",
+        ),
+        "@blocknote/react/**": toBackendAlias(
+          "lib/test/mocks/blocknote-react.mock.js",
+        ),
+      },
+      ...config.test,
     },
-  },
-  plugins: [
-    viteTsconfigPaths({
-      root: toAlias("./"),
-    }),
-  ],
-});
+    plugins: [
+      viteTsconfigPaths({
+        root: toAlias("./"),
+      }) as any,
+    ].concat(config.plugins ?? []),
+  });
+};
diff --git a/packages/@liexp/backend/vitest.config.ts b/packages/@liexp/backend/vitest.config.ts
index 508519694..75bfe769f 100644
--- a/packages/@liexp/backend/vitest.config.ts
+++ b/packages/@liexp/backend/vitest.config.ts
@@ -1,13 +1,11 @@
 import viteTsconfigPaths from "vite-tsconfig-paths";
-import { defineConfig, mergeConfig } from "vitest/config";
-import { baseConfig } from "./src/test/vitest.base-config";
+import { extendBaseConfig } from "./src/test/vitest.base-config";
 
-export default mergeConfig(baseConfig, defineConfig({
+export default extendBaseConfig(import.meta.url, (toAlias) => ({
   test: {
     name: "@liexp/backend",
-    root: __dirname,
     globals: true,
-    include: [__dirname + "/src/**/*.spec.ts"],
+    include: [toAlias("src/**/*.spec.ts")],
     watch: false,
     coverage: {
       thresholds: {
@@ -17,6 +15,6 @@ export default mergeConfig(baseConfig, defineConfig({
       },
     },
   },
-  plugins: [viteTsconfigPaths({ root: __dirname })],
-  root: __dirname,
+  plugins: [viteTsconfigPaths({ root: toAlias("./") })],
+  root: toAlias("./"),
 }));
diff --git a/services/api/test/vitest.config.e2e.ts b/services/api/test/vitest.config.e2e.ts
index 7a066476a..7031e3aa6 100644
--- a/services/api/test/vitest.config.e2e.ts
+++ b/services/api/test/vitest.config.e2e.ts
@@ -1,31 +1,22 @@
-import { defineProject, mergeConfig } from "vitest/config";
-import {
-  PathnameAlias,
-  baseConfig,
-} from "@liexp/backend/lib/test/vitest.base-config.js";
+import { extendBaseConfig } from "@liexp/backend/lib/test/vitest.base-config.js";
 
-const toAlias = PathnameAlias(import.meta.url);
-
-const config = mergeConfig(
-  baseConfig,
-  defineProject({
-    test: {
-      name: "api-e2e",
-      root: toAlias("../"),
-      globals: true,
-      include: [toAlias(`../src/**/*.e2e.ts`)],
-      setupFiles: [toAlias(`testSetup.ts`)],
-      globalSetup: [toAlias(`globalSetup.ts`)],
-      exclude: ["**/build", "**/src/migrations", "**/src/scripts"],
-      pool: "forks",
-      poolOptions: {
-        forks: {
-          singleFork: process.env.CI === "true" ? true : false,
-          isolate: false,
-        },
+const config = extendBaseConfig(import.meta.url, (toAlias) => ({
+  test: {
+    name: "api-e2e",
+    root: toAlias("../"),
+    globals: true,
+    include: [toAlias(`../src/**/*.e2e.ts`)],
+    setupFiles: [toAlias(`testSetup.ts`)],
+    globalSetup: [toAlias(`globalSetup.ts`)],
+    exclude: ["**/build", "**/src/migrations", "**/src/scripts"],
+    pool: "forks",
+    poolOptions: {
+      forks: {
+        singleFork: process.env.CI === "true" ? true : false,
+        isolate: false,
       },
     },
-  }),
-);
+  },
+}));
 
 export default config;
diff --git a/services/api/test/vitest.config.spec.ts b/services/api/test/vitest.config.spec.ts
index 579379143..4911c8934 100644
--- a/services/api/test/vitest.config.spec.ts
+++ b/services/api/test/vitest.config.spec.ts
@@ -1,17 +1,11 @@
-import { defineProject, mergeConfig } from "vitest/config";
-import { PathnameAlias, baseConfig } from "@liexp/backend/lib/test/vitest.base-config.js";
+import { extendBaseConfig } from "@liexp/backend/lib/test/vitest.base-config.js";
 
-const toAlias = PathnameAlias(import.meta.url);
-
-export default mergeConfig(
-  baseConfig,
-  defineProject({
-    test: {
-      name: "api-spec",
-      root: toAlias('../'),
-      globals: true,
-      include: [ toAlias('../src/**/*.spec.ts')],
-      exclude: ["**/build", "**/src/migrations", "**/src/scripts"],
-    },
-  }),
-);
+export default extendBaseConfig(import.meta.url, (toAlias) => ({
+  test: {
+    name: "api-spec",
+    root: toAlias("../"),
+    globals: true,
+    include: [toAlias("../src/**/*.spec.ts")],
+    exclude: ["**/build", "**/src/migrations", "**/src/scripts"],
+  },
+}));