EAS build fails because it cannot resolve path aliases

from the XCode logs:
warn =================================================================================================
warn From React Native 0.73, your project's Metro config should extend '@react-native/metro-config'
warn or it will fail to build. Please copy the template at:
warn https://github.com/facebook/react-native/blob/main/packages/react-native/template/metro.config.js
warn This warning will be removed in future (https://github.com/facebook/metro/issues/1018).
warn =================================================================================================
warning: the transform cache was reset.
                Welcome to Metro v0.80.5
              Fast - Scalable - Integrated

transform[stderr]: Missing transform.routerRoot option in Metro bundling request, falling back to `app` as routes directory.
transform[stderr]: Missing transform.routerRoot option in Metro bundling request, falling back to `app` as routes directory.
transform[stderr]: Missing transform.routerRoot option in Metro bundling request, falling back to `app` as routes directory.
transform[stderr]: Missing transform.routerRoot option in Metro bundling request, falling back to `app` as routes directory.
transform[stderr]: Missing transform.routerRoot option in Metro bundling request, falling back to `app` as routes directory.
transform[stderr]: Missing transform.routerRoot option in Metro bundling request, falling back to `app` as routes directory.
transform[stderr]: Missing transform.routerRoot option in Metro bundling request, falling back to `app` as routes directory.
error Unable to resolve module @/lib/api from /private/var/folders/wd/5bzl_d9x0jxgs8vsm1nj8hp40000gn/T/eas-build-local-nodejs/baa2f8b9-c816-4f6b-bb3a-39ba4b9a906d/build/apps/mobile/src/components/AppProvider.tsx: @/lib/api could not be found within the project or in these directories:
  node_modules
  ../../node_modules
  node_modules
  ../../node_modules
> 1 | import { TRPCProvider } from "@/lib/api";
    |                               ^
  2 | import type { ReactNode } from "react";
  3 | import { AuthProvider } from "./AuthProvider";
  4 |.
Error: Unable to resolve module @/lib/api from /private/var/folders/wd/5bzl_d9x0jxgs8vsm1nj8hp40000gn/T/eas-build-local-nodejs/baa2f8b9-c816-4f6b-bb3a-39ba4b9a906d/build/apps/mobile/src/components/AppProvider.tsx: @/lib/api could not be found within the project or in these directories:
  node_modules
  ../../node_modules
  node_modules
  ../../node_modules
> 1 | import { TRPCProvider } from "@/lib/api";
    |                               ^
  2 | import type { ReactNode } from "react";
  3 | import { AuthProvider } from "./AuthProvider";
  4 |
    at ModuleResolver.resolveDependency (/private/var/folders/wd/5bzl_d9x0jxgs8vsm1nj8hp40000gn/T/eas-build-local-nodejs/baa2f8b9-c816-4f6b-bb3a-39ba4b9a906d/build/node_modules/metro/src/node-haste/DependencyGraph/ModuleResolution.js:153:15)
    at DependencyGraph.resolveDependency (/private/var/folders/wd/5bzl_d9x0jxgs8vsm1nj8hp40000gn/T/eas-build-local-nodejs/baa2f8b9-c816-4f6b-bb3a-39ba4b9a906d/build/node_modules/metro/src/node-haste/DependencyGraph.js:271:43)
    at /private/var/folders/wd/5bzl_d9x0jxgs8vsm1nj8hp40000gn/T/eas-build-local-nodejs/baa2f8b9-c816-4f6b-bb3a-39ba4b9a906d/build/node_modules/metro/src/lib/transformHelpers.js:176:21
    at resolveDependencies (/private/var/folders/wd/5bzl_d9x0jxgs8vsm1nj8hp40000gn/T/eas-build-local-nodejs/baa2f8b9-c816-4f6b-bb3a-39ba4b9a906d/build/node_modules/metro/src/DeltaBundler/buildSubgraph.js:56:25)
    at visit (/private/var/folders/wd/5bzl_d9x0jxgs8vsm1nj8hp40000gn/T/eas-build-local-nodejs/baa2f8b9-c816-4f6b-bb3a-39ba4b9a906d/build/node_modules/metro/src/DeltaBundler/buildSubgraph.js:107:30)
    at process.processTicksAndRejections (node:internal/process/task_queues:95:5)
    at async Promise.all (index 5)
    at async visit (/private/var/folders/wd/5bzl_d9x0jxgs8vsm1nj8hp40000gn/T/eas-build-local-nodejs/baa2f8b9-c816-4f6b-bb3a-39ba4b9a906d/build/node_modules/metro/src/DeltaBundler/buildSubgraph.js:116:5)
    at async Promise.all (index 2)
    at async visit (/private/var/folders/wd/5bzl_d9x0jxgs8vsm1nj8hp40000gn/T/eas-build-local-nodejs/baa2f8b9-c816-4f6b-bb3a-39ba4b9a906d/build/node_modules/metro/src/DeltaBundler/buildSubgraph.js:116:5)
Tried adding babel-plugin-module-resolver, but that didn't help. Need to figure out how Expo does this behind the scenes and adapt it to when paths for the share extension target are resolved.
MaxAst / expo-share-extension

EAS build fails because it cannot resolve path aliases #7
