If you have a facility there to dig and store the materials, it will run for decades and will be documented and archived somewhere. Someone will eventually find out about it.
Watch "Into Eternity", it talks a lot about that. The plan for Onkalo (Finland) is to use both : the caves will be sealed and hidden, but they will also place warnings inside.
I find wkhtmltopdf very difficult to work with, for instance the official documentation is just a man [1].
I discovered the project Weasyprint[2] a few months ago. I find it easier to use, and very powerful when using Python. You can define a custom loader to inject images or styles generated on the fly for instance.
There are still some missing features compared to wkhtmltopdf, such as defining a custom footer and header, but it's a very promising project.
https://www.reddit.com/r/interestingasfuck/comments/meopv9/s...