I'm still using a clone of https://del.icio.us/ that I wrote in 2004 after a fit of pique when it went down for a day or two. I use it almost daily and have amassed 11,490 links as of today, and most of them have the HTML cached.
It's kind of fun to track my interests over time by counting tag frequency, but I mainly use it out of nostalgia and for the mere constancy of it.
How do you get it to work with sites that are javascript-heavy or have heavy bot restrictions? I've been trying to make something similar but spent weeks just fighting edge cases on HTML not caching correctly.
I don't worry about it and just use a straight-up HTTP GET. That works a surprising number of times. If I was trying harder I would use Puppeteer or similar and try to grab a full height screenshot. Most of the time I'm just clicking the URL to get back to the page.
It's kind of fun to track my interests over time by counting tag frequency, but I mainly use it out of nostalgia and for the mere constancy of it.