Just went through this a few years ago.
Was forced into buying a home on short notice.
The landlord sold the house we were renting so we had 90 days to vacate.
After looking around we decided its was actually cheaper to buy rather than rent.
This was at the height of the housing shortage 3 years ago.
Used my VA loan option and Zero down and still put out almost 8,000 dollars with escrow,closing,inspections,earnest money and other misc out of pocket .
Caught us unprepared but we made it happen.
Zero down is very misleading.