Can I stack on a second overlayfs from RAM to temporarily install more packages?

[anon50098793]

you may wish to checkout this for inspiration

Extroot using (z)ram drive with the backup&restore option over NFS share

Introduction If you have a router without a USB port, it is very likely that with more intense usage of your router, you will need more disk space. You may want to test new software or config options without changing your original setup. These can be achieved by creating a ram drive and using it as your new storage space. With this option, you can install and test new packages beyond your flash drive’s capacity to see how they work without changing your original setup. As soon as you re…

what you are attempting to do is fairly specialized so anticipate doing most of the gruntwork yourself...