Installation:
sudo apt-get install build-essential libtool autotools-dev autoconf pkg-config libssl-dev libboost-all-dev automake libdb++-dev libssl-dev git cmake
git clone https://github.com/steemit/steem 

cd steem
git submodule update --init --recursive
cmake .
make

Mining:
cd steem/programs/steemd
./steemd --miner=["accountname","${WIFPRIVATEKEY}"] --witness="accountname" --seed-node="52.38.66.234:2001" --rpc-endpoint

Using config.ini
run ./steemd then ctrl+c to exit (to create witness_node_data_dir)
cd
cd steem/programs/steemd/witness_node_data_dir
vi config.ini
scroll down to the line under #seed-node and enter these 3 lines
seed-node = 52.38.66.234:2001
seed-node = 52.37.169.52:2001
seed-node = 52.26.78.244:2001
type all manually, there is a space before and after the =
then scroll down under #witness and enter at least 3 DISTINCT witnesses like this
witness = "enterwitnessname"
witness = "enterwitnessname1"
witness = "enterwitnessname2"
you cannot have the same witnesses on multiple instances
then go down to after #miner and enter like this
miner = ["enterwitnessname", "privatekey"]
miner = ["enterwitnessname1", "privatekey"]
miner = ["enterwitnessname2", "privatekey"]
there is a space before/after the = and after the ,
then under #mining-threads enter
mining-threads = 8 (or however many cores you have)
then escape
then :wq (return)

to start mininig after populating config.ini use: ./steemd –-rpc-endpoint


Using the wallet:
cd steem/programs/cli_wallet
./cli_wallet
set_password YOURPASS
unlock YOURPASS
import_key WIFPRIVATEKEY
list_my_accounts (to see your accounts/balances)
get_account enteraccountname (to see account info)