local DiscordHook = require("DiscordHook")
local success, hook = DiscordHook.createWebhook("<MY WEBHOOK>")
if not success then
  error("Webhook connection failed! Reason: " .. hook)
  end

 p = peripheral.wrap("back")
if p.getNearbyPlayers(4) then
  hook.sendEmbed("@<everyone>", "Base Defense System", "An intruder has been detected! User **'TEST'** has entered your claim`! Please send defensive units out now!", nil, 0xFF0000, nil, "https://crafatar.com/avatars/921dc3a0f51a47fd89a00391868ff50a?size=25", "Base Defence System", "https://media.energetic.pw/pm5sfo-82l.jpg")
  end