Question

What are the hardware / software requirements to run a DAG Node?

Answer 1

The easiest way that makes most sense (because you need to be online most of the time to get a high PRO score) is to run a vps (virtual private server) on a provider like Digital Ocean, Vultr or AWS. The cost for this is around $40/month/node. It may be possible to run multiple nodes with one (more powerful) virtual machine but this information is not official yet. The other possibility is to set up a server with your own hardware/software. You need a server with 4CPUs, 4GB of RAM and 160GB of disk space.