ender.js

const SerialPort = require('serialport');

const port = new SerialPort('/dev/cu.usbserial-1420', {baudRate: 115200})

// port.write('G0 Z10\n', function(err) {
port.write('M114\n', function(err) {
  if (err) {
    return console.log('Error on write: ', err.message)
  }
  //console.log('message written')
})

// Open errors will be emitted as an error event
port.on('error', function(err) {
  console.log('Error: ', err.message)
})

// Read data that is available but keep the stream in "paused mode"
port.on('readable', function () {
  port.read()

})

// Switches the port into "flowing mode"
port.on('data', function (data) {
  console.log('Data:',  data.toString())
})

// Pipe the data into another stream (like a parser or standard out)
const Readline = require('@serialport/parser-readline')
const lineStream = port.pipe(new Readline())

ender.py

import serial
serialPort = serial.Serial('/dev/cu.usbserial-1420', 115200, exclusive = True)

line = "G0 X10" #go to x=10
line = "M114" #go home

line = line + "\n"
serialPort.write(line.encode())

lines = serialPort.read(serialPort.in_waiting).decode().splitlines(False)
print(lines)

ender.sh

xcode-select --install
npm install serialport