macOS - please confirm my process to connect Mist to private node

Most of the community is mining and creating private networks on Windows/Linux but I'm using macOS for my tutorial and learning so I would like conformation that I am doing it correctly. So fat it seems I have success but any tips would be welcome.

I am not mining. I have simply created a private network so I can interact with Mist and build Dapps/contacts.

genesis.json

Code:

{
  "coinbase"   : "0x0000000000000000000000000000000000000001",
  "difficulty" : "0x20000",
  "extraData"  : "",
  "gasLimit"   : "0x2fefd8",
  "nonce"      : "0x0000000000000042",
  "mixhash"    : "0x0000000000000000000000000000000000000000000000000000000000000000",
  "parentHash" : "0x0000000000000000000000000000000000000000000000000000000000000000",
  "timestamp"  : "0x00",
  "alloc": {},
  "config": {
        "chainId": 15,
        "homesteadBlock": 0,
        "eip155Block": 0,
        "eip158Block": 0
    }
}

Initialization:
geth --datadir=./chaindata/ init ./genesis.json
geth --datadir=./chaindata/

Connecting Mist to private network / start the local test network
geth --dev

Get Mist to connect
open -a /Applications/Mist.app --args --rpc /var/folders/y1/jynwfrwj411bxck8whqgcbr00000gq/T/geth.ipc

Correct?