[cydonian_monk]

Your second paragraph about start-up governments makes me wonder how the court system of the "Republic of Texas" quasi-government [0] (not to be confused with the actual state government) is doing these days. While I doubt they have the resources, the goodwill, or the political capital to replace or supersede the actual Texas state government should the US Federal system collapse, they do fit your description of a start-up government.

0: http://thetexasrepublic.com

[Gravityloss]

There are lots of countries which only gained independence relatively recently. I assume there are still people around who started issuing Estonian passports from an underground government in the eighties when the country was still officially part of Soviet Union. The country's latest innovation has been e-residency which anyone can apply for.

It has been done and it has been a roaring success.