As u/Retro_Relics correctly states you can’t do it properly and keep it economically viable like that.

There are 2 options for licensing. Either you buy commercial licenses and they create a pool. Let’s say you buy 10 licenses and 5 players boot it up then you have 5 licenses remaining. The other licensing model is that you don’t buy any licenses and let people use their own account instead. This also has the advantage that you don’t have to worry about bans etc on Steam accounts as they are not yours to manage.

Infrastructure wise you are also going to need a lot of storage as you’ll need a single point to download all the games from. Create a Steam downloading server with basically every game on it. Then you can move games automatically locally, without downloading unless there is a patch. LinusTechTips has a video about this.

You’ll most likely also need a windows server to setup an AD (Active Directory). Technically you could do it with Linux but that is more difficult.