File posterp.db is the backup of this information system database created with command pg_dump -Fc -f ~/posterp.db app4.
Download project files:
mkdir -p terarows
cd terarows
git clone https://gitlab.com/terarows/app4
#Create directories to hold your own information systems:
mkdir -p app5 app6 app7
You are much welcome to fork this information system as your own, customize or enhance it for your customers, and run your businesses on this platform.