I usually start the daemon with "./src/hyperstaked &" and then communicate with it via RPC calls such as "./src/hyperstaked getinfo"
It works. Thanks.
And one more question: is it safe for staking to start same wallet on my local PC, while it still running on vps?
Yes it is absolutely safe. One thing I would recommend is having your vps always staking, and your local PC only for sending and receiving transactions.