I coding in these years, and expert on project of LPG system. also I like to try new techoglogy of software, and love it so much.I have been work at Hung An Pharmacy(chain of retail stores), and I make HA(Hung An) save forty million from make an inventory of my procedure.I also assist HA from DOS upgrade to Windows OS, and maintain these system day by day.Cause for open source,we use OCSinventory to manage our device, and I develop custom CardDav plugin to integrate Synology MailStation, and also redirect Synology MailServer log to Graylog.And we develop our system to integrate ERP and OUF(workflow)