Run `mkdir ethscriptoor; cd ethscriptoor; yarn init . -y; yarn add ethers;` and add this to a file

ETHScriptoor.js

// Super basic ETHScriptions in node
const ethers = require('ethers');

const privatekey = 'YOUR_PRIVATE_KEY'
const provider = new ethers.JsonRpcProvider('YOUR_RPC_URL');
const wallet = new ethers.Wallet(privatekey, provider);

const type = ``; // Leave blank for plain text (Save gas)
const text = `CHANGE_THIS`;
const hex = ethers.hexlify(ethers.toUtf8Bytes(`data:${type},`${CHANGE_THIS}`));
let tx = {
    to: wallet.address,
    value: 0,
    data: hex,
}
wallet.sendTransaction(tx)
.then((tx) => {
    tx.wait().then(
        console.log
    )
});