Sorry for pulling this off-topic. I just wanted to add one last thing.
You can always start with running a full node, it’s a similar setup but requires no PRV to be staked. A full node does not give any rewards, but it contributes to the network and it’s a good test as it require more CPU, bandwidth, storage and memory than a validator node. When you want to stake, you can change or start up a second docker container and run as a validator.