I agree. In general the risk of enterprise code and/or informations leaking out would be high when using a single device for both. And even if you're doing ever

I agree. In general the risk of enterprise code and/or informations leaking out would be high when using a single device for both. And even if you're doing everything perfectly and implement an algorithm for the external project and then anytime later you end up reusing it for some internal enterprise project you and the external project might end up having a lot of problems when trying to demonstrate the timeline (best case scenario assuming that hte external project is ok sharing its code with the company you're working for). All in all too much potential trouble, I would definitely not recommend sharing a single device.