Add Install Button for VSCode Insiders(Dirty and quick)

usersrcipt.js

// ==UserScript==
// @name         Add Install Button for VSCode Insiders
// @namespace    http://tampermonkey.net/
// @version      0.1
// @description  
// @author       @xream
// @match        https://marketplace.visualstudio.com/items*
// @grant        none
// ==/UserScript==

(function() {
    'use strict';

    const wait = 1 // s
    const a = 'a.install'
    const label = '.ms-Button-label'

    setTimeout(() => {
        const e = document.querySelector(a)
        const ne = e.cloneNode(true)
        ne.setAttribute('href', ne.getAttribute('href').replace('vscode:', 'vscode-insiders:'))
        ne.querySelector(label).innerText = 'Install(Insiders)'
        e.parentNode.append(ne)
    }, wait * 1000)

})();