[GNC] Guidance request.

[james]

Hello,

So I successfully used gnucash for a small S-corp,
from 2012, thru 2017(September).

Then several concurrent/random illnesses sidelined my gnucash usage. The 
small s corp trudged along and I did manage to get tax returns file 
(both S and personal) but the 100-200 transactions per year where not 
entered after July 2017.

After years, I'm mostly healthy and ready to
compile the latest version of gnucash on gentoo (actually 3.8b-r1 ) is 
already installed and looking at me, to enter data.


So, I'd like to set it up on postgresql and wait until version 4.0 is at 
least released in beta. keeping copies
on at least (2) distinct linux systems is required, and a  way 
(methodology) to sync one to another is very important.

I'd be greatly appreciative for info on how to input the data from 
2012-2017, as I believe it was a 2.4 version of gnucash to gnucash 4.0+. 
The old 2012 lappy still runs, so I can boot it up, when the times is at 
hand to migrate that old data to the system running 4.0+.

Once I do that,  move the old data, into gnucash 4.0+, I'd then manually 
input the data for years 2017 (august forward) and 2018 and 2019 and 2020.

The company just had a credit card, a checkbook (few written) and me 
accessing the data via gnucash.

1. Suggested docs/guides to read

2. upload the old data (2012-2017) lappy to lappy and test.

3.Setup/use OFX with a bank and directly download data into GNUcash.

4. Eventually input/correct 2020 data under the new 4.0* version.

5. have some sorts of rigorous backup system, to a different computer 
(options?/suggestions?). rsync by drive to remote drive ?

Anything else anyone can suggest?

Oh, my phone is Android 9 but looking at an Android 20+
in a few months... (unlocked stacks). A discussion on Security for 
gnucash on Android would be most welcome. Or a place to read about 
Gnucash security issue on both linux/android.

All discussion and suggestions are welcome.

James