Need resources on commercial yeast growing/Drying/concentration!

Hey! I’m about to start a brewery internship, and what the brewery is really interested in is getting their own yeast production up and running. They currently use pitches of dry yeast and they want to be able to re-use it and grow more yeast for themselves instead of buying it all the time. They hope I can help. I know some about cultivating yeasts - but only in small quantities for labs, not in an industrial scale! They mentioned that they’ve done it before at other places, but I want to get a head start to have a good impression

If anyone has good resources on how to grow yeasts in big quantities and concentrate/dry it to “close” to what our provider does - it would be really appreciated!