How to install pnpm packages in Monorepo?

[sellmon]

Hello, I have a monorepository structure:

    apps
        contracts
        web
    packages

I have a request that goes to api/verification and executes a function with parameters. Here is the function that contains child_process. It seems that I need to run this child_process in the contracts folder (as all the necessary environment is set up there), which is causing an error.

Here's the function:

import { spawn } from "child_process";
import path from "path";

const verifyTask = async (
  contractAddress: string,
  wallet: string,
  digitalItemSalePriceInWei: string,
  verificationTime: string,
  amount: string
) => {
  const hardhatCommand = "npx";
  const hardhatArgs = [
    "hardhat",
    "verify",
    contractAddress,
    wallet,
    digitalItemSalePriceInWei,
    verificationTime,
    amount,
  ];

  const contractsPath = path.resolve(__dirname, "../../../../../contracts");
  const options = {
    cwd: contractsPath,
    // shell: true,
  };

  console.log("verifyTask: contractsPath: ", contractsPath);

  console.log("verifyTask: Verification started");
  console.log("verifyTask: Contract address:", contractAddress);
  console.log("verifyTask: Wallet:", wallet);
  console.log("verifyTask: Price:", digitalItemSalePriceInWei);
  console.log("verifyTask: Time:", verificationTime);
  console.log("verifyTask: Amount:", amount);
  const childProcess = spawn(hardhatCommand, hardhatArgs, options);

  childProcess.stdout.on("data", (data) => {
    console.log(data.toString());
  });

  childProcess.stderr.on("data", (data) => {
    console.error(data.toString());
  });

  childProcess.on("close", (code) => {
    if (code === 0) {
      console.log("verifyTask: verify-contract task completed");
    } else {
      console.error("verifyTask: An error occurred while executing the verify-contract task");
    }
  });
};

export default verifyTask;

The error message is as follows:

Uncaught Exception     {"errorType":"Error","errorMessage":"spawn /bin/sh ENOENT","code":"ENOENT","errno":-2,"syscall":"spawn /bin/sh","path":"/bin/sh","spawnargs":["-c","npx hardhat verify 0x... 0x... 536472061365408 86400 0"],"stack":["Error: spawn /bin/sh ENOENT","	at ChildProcess._handle.onexit (node:internal/child_process:283:19)","	at onErrorNT (node:internal/child_process:476:16)","	at process.processTicksAndRejections (node:internal/process/task_queues:82:21)"]}
Unknown application error occurred
Runtime.Unknown

It seems to be related to the missing environment, and I need to run pnpm install in the contracts folder. Can you suggest how I can configure this? I don't understand how to set it up because the root folder is specified when deploying to Vercel.

My vercel.json

{
  "buildCommand": "turbo build && cd ../contracts && pnpm install"
}

Is this right way or do I need to deploy both of this apps into vercel?