Running a devl build of postgres

postgres

git clone https://github.com/postgres/postgres.git && cd postgres

./configure --prefix=/tmp/postgres --with-openssl --with-ossp-uuid --with-libs=/usr/local/opt/readline/lib/ --with-includes=/usr/local/opt/readline/include/ 
# skip the readline parts if you dont have readline installed but it makes `psql` better

make -sj8
make install

/tmp/postgres/bin/initdb /tmp/postgres/data

echo "port = 54321" >> /tmp/postgres/data/postgresql.conf 

/tmp/postgres/bin/postgres -D /tmp/postgres/data

/tmp/postgres/bin/psql -p 54321