This solution is on the user side, which is great because each person can get and manage saved pages for themselves. But if we're looking for a developer side

This solution is on the user side, which is great because each person can get and manage saved pages for themselves. But if we're looking for a developer side solution, then making pages that last an order of magnitude longer may be better for everyone in the long run, e.g. https://jeffhuang.com/designed_to_last/ https://jeffhuang.com/designed_to_last/