feat: actually link expo and nx

tools/scripts/eas-build-post-install.mjs

@@ -0,0 +1,28 @@
+/**
+ * This script is used to patch the '@nx/expo' package to work with EAS Build.
+ * It is run as a eas-build-post-install script in the 'package.json' of expo app.
+ * It is executed as 'node tools/scripts/eas-build-post-install.mjs <workspace root> <project root>'
+ * It will create a symlink from the project's node_modules to the workspace's node_modules.
+ */
+
+import { symlink, existsSync } from 'fs';
+import { join } from 'path';
+
+const [workspaceRoot, projectRoot] = process.argv.slice(2);
+
+if (existsSync(join(workspaceRoot, 'node_modules'))) {
+  console.log('Symlink already exists');
+  process.exit(0);
+}
+
+symlink(
+  join(projectRoot, 'node_modules'),
+  join(workspaceRoot, 'node_modules'),
+  'dir',
+  (err) => {
+    if (err) console.log(err);
+    else {
+      console.log('Symlink created');
+    }
+  },
+);