Open Terminal and lets refresh system:

sudo apt-get update

sudo apt-get upgrade

sudo reboot

Open Terminal again and Install dependencies needed for compiling wallet:

sudo apt-get install qt5-default qt5-qmake qtbase5-dev-tools qttools5-dev-tools build-essential libboost-dev libboost-system-dev libboost-filesystem-dev libboost-program-options-dev libboost-thread-dev libssl-dev libdb++-dev libminiupnpc-dev

Since this is memory intensive we will Create a swap File for the Pi 3:

sudo dd if=/dev/zero of=/var/swap.img bs=1024k count=1000

sudo mkswap /var/swap.img

sudo swapon /var/swap.img

Build BerkeleyDB:

cd ~

wget http://download.oracle.com/berkeley-db/db-4.8.30.NC.tar.gz

sudo tar -xzvf db-4.8.30.NC.tar.gz

cd db-4.8.30.NC/build_unix

../dist/configure --enable-cxx

make

sudo make install

Set BerkeleyDB headers:

export CPATH="/usr/local/BerkeleyDB.4.8/include"

export LIBRARY_PATH="/usr/local/BerkeleyDB.4.8/lib"

export LD_LIBRARY_PATH=/usr/local/BerkeleyDB.4.8/lib/

Download source code:

cd ~

git clone https://github.com/hiddensphinx/reddcoin.git

Get the Makefile:

cd reddcoin

./autogen.sh

./configure --with-gui=no --disable-tests CPPFLAGS="-I/usr/local/BerkeleyDB.4.8/include -O2" LDFLAGS="-L/usr/local/BerkeleyDB.4.8/lib"

cd /src

sudo make

The daemon is now ready. First create the reddcoin.conf file with a strong username and password!

cd ~
mkdir .reddcoin && cd .reddcoin
nano reddcoin.conf
rpcuser=<insert a username>
rpcpassword=<insert a pwd>

Now start the daemon and let it sync

cd ~/reddcoin/src

./reddcoind -daemon

./reddcoin-cli