The (authoritarian?) nation of Finland has already solved the problem of what to do with nuclear waste: https://en.m.wikipedia.org/wiki/Onkalo_spent_nuclear_fuel_re...
I watched a very interesting documentary about Onkalo, which happens to be on YouTube: https://www.youtube.com/watch?v=ayLxB9fV2y4
Last I read Onkalo was testing empty casks and had stored zero waste for zero years.
Bit of a rush to close the GitHub ticket eh?