https://gorails.com/setup/windows/10
sudo apt-get install git-core zlib1g-dev build-essential libssl-dev libreadline-dev libyaml-dev libsqlite3-dev sqlite3 libxml2-dev libxslt1-dev libcurl4-openssl-dev software-properties-common libffi-dev
sudo apt install libpq-dev
sudo apt install postgresql postgresql-contrib
sudo /etc/init.d/postgresql start
sudo -u postgres psql
alter user postgres password 'postgres';
bundle exec rails db:create bundle exec rails db:migrate
https://www.digitalocean.com/community/tutorials/how-to-install-and-secure-redis-on-ubuntu-20-04
sudo apt install redis-server
sudo /etc/init.d/redis-server start
https://www.digitalocean.com/community/tutorials/how-to-install-and-configure-elasticsearch-on-ubuntu-20-04 https://www.digitalocean.com/community/tutorials/how-to-install-java-with-apt-on-ubuntu-20-04
sudo apt install default-jre
curl -fsSL https://artifacts.elastic.co/GPG-KEY-elasticsearch | sudo apt-key add -
echo "deb https://artifacts.elastic.co/packages/7.x/apt stable main" | sudo tee -a /etc/apt/sources.list.d/elastic-7.x.list
sudo apt update
sudo apt install elasticsearch
sudo -i service elasticsearch start
sudo apt install poppler-utils