The tech stack:

• Ruby 2.6.3

• Clone the Repo to a local directory git clone https://github.com/sajan45/pay.git.
• Run cd pay
• Run bin/pay
• Enter help for supported actions

• Run bin/setup to install dependencies.
• Run rspec . to run the test cases

There is no external dependency as of now. This app uses Ruby in-built 'PStore' for storing data. To run the tests, RSpec is needed, which can be installed by bundle install or bin/setup.