Do shell scripting plus documentation of an minimum viable product (MVP) of using Tails as an Ad Hoc Securebox for manange remote backups. Focus on somewhat automate better the backup download and backup archiving. Total aided restore process may be too complex to do it safely, but if some strategies that upload data for to another servers may be a base for end user add some extra customization.
This issue is likely to generate another GitHub Project just to keep the tools. This also helps because such scripts can be used outside Tails.. But I think that for sake of speed, tools could be added an extra copy to AdHocSecurebox/bin, so in a hurry the person do not need install another repository.
PS: