steps:
install stable docker-desktop version: https://docs.docker.com/desktop/release-notes/#4260
start docker desktop
navigate to project
navigate to ./rails_root
run "docker compose up db" to start db and see logs (optional, run just "docker compose up" to run both rails development environment and database as docker containers)
run bundle install
run rake db:setup
run rake db:migrate
run rails server
navigate to localhost:3000/posts to see post crud demo