Yes – There is an existing single source of truth database.
Your choice JSON, XML, CSV …. <<<< >>>> 101
You have Your BIG RELIABLE Mothership of data.
Do you have an AGILE Jetski ?
BE BOTH !
Reliable with big data
Slow to change direction
Too many spreadsheets
Generic language Your functionality
Mirrored data from the mothership
NASDAQ, ASX Tried. Tested. Proven.
Australian based servers