adbremote.sh

#!/bin/bash

###
# Requires Null Keyboard https://play.google.com/store/apps/details?id=com.wparam.nullkeyboard
# Author: Volodymyr Shymanskyy
###

brightness=$(adb shell settings get system screen_brightness)
ime=$(adb shell settings get secure default_input_method)

trap restore INT

function setup() {
  # Wakeup to process commands faster
  adb shell input keyevent KEYCODE_WAKEUP

  # Always-on screen
  adb shell svc power stayon usb

  # Set brightness
  adb shell settings put system screen_brightness_mode 0
  adb shell settings put system screen_brightness 0

  # Disable Keyboard
  adb shell ime set com.wparam.nullkeyboard/.NullKeyboard

  # Show Touches
  adb shell settings put system show_touches 1
}

function restore() {
  echo Restoring settings

  adb shell svc power stayon false

  adb shell settings put system screen_brightness_mode 1
  adb shell settings put system screen_brightness $brightness

  adb shell ime set org.pocketworkstation.pckeyboard/.LatinIME #$ime

  adb shell settings put system show_touches 0
  exit 0
}

setup
scrcpy -m 768
restore

I created a windows batch script based on this: https://gist.github.com/sharunkumar/ca2cd57936e4bac974578d1e8a6b3cf6