Install yarn (https://yarnpkg.com/lang/en/docs/install) or npm and then run
yarn install
yarn start
After running the command above you can then make a get request to localhost:3000/people
for an index of all
the people. Or localhost:3000/people/${peopleId}
for an individual.
You can also access localhost:3000/me
for a good starting point person to open with.
This is built with json-server which exposes some extra endpoints that you can play around with as well.