Let's say that I want to back up interesting or important webpages, without the Internet Archive. What option do I have, given a URL, to archive it?

Given: 1. It may require a login, for which I already have a cookie in my everyday browser. 2. It may require complex Javascript, e.g. React applications. 3. It may require dismissing popups for: cookie consent, newsletters, optional logins or signup, etc. 4. It may require solving a captcha. I have no problem letting the script run in the background and grabbing my attention when a captcha is required.