In Nepal (https://en.wikipedia.org/wiki/Nepal), the official calendar is Vikram Sambat (https://en.wikipedia.org/wiki/Vikram_Samvat) instead of Gregorian Calendar.

I am not able to fully embrace open source apps like GnuCash, Debitum (https://github.com/Marmo/debitum), etc. due to the lack of support for the official calendar.

I do have a python script to convert dates between these two calendars, but lack knowledge to contribute to those apps. The script is here: (https://github.com/pragyanone/adbs)

If open source apps like GnuCash provides support for Vikram Sambat, there will be a huge user base from Nepal.

I've submitted an enhancement in bugzilla too.
(https://bugs.gnucash.org/show_bug.cgi?id=798602)