ConvertKit - revert back to the old nav bar.

cknav.js

// ==UserScript==
// @name        CK - switch to the old nav
// @namespace   Violentmonkey Scripts
// @match       https://app.convertkit.com/*
// @grant       none
// @version     1.0
// @author      -
// @description Changes ConvertKit nav bar back to the old style, where each page has a link
// ==/UserScript==

function link(text, href) {
  const el = document.createElement('a');  
  el.href = href;
  el.innerText = text;
  el.className = "hover:text-white";
  return el;
}

function modifyPage() {
  const nav = getNavbar();
  
  nav.classList.remove('gap-6');
  nav.classList.add('gap-12');
  nav.replaceChildren(
    link("Subscribers", "/subscribers"),
    link("Forms", "/forms"),
    link("Broadcasts", "/broadcasts"),
    link("Sequences", "/sequences"),
    link("Automations", "/automations"),
    link("Rules", "/rules"),
  );
}

function getNavbar() {
  return document.querySelector('nav');
}

function waitUntilReady() {
  if(getNavbar()) {
    modifyPage();
  } else {
    setTimeout(waitUntilReady, 100);
  }
}
waitUntilReady();

Install this using an extension like Violentmonkey.

Feel free to modify the list of links to whatever you like!