VatikaTithi and parva days for your location
Module
Panchang
The Jain calendar, computed for your own city — because some institutions' days are shaped by it.
What it does
Panchang, in practice.
Sunrise and sunset, computed not copied
The pachchakkhan reader
A daily notice, if your community wants one
Runs well with
Nobody buys one module.
Every part of Vatika reads the same people, the same classes and the same year — so switching one on makes the others better, not busier.
Put Panchang to work.
Thirty minutes, your own data, an honest answer.