No "yarn dev" script and "yarn debug" hangs

[strefethen]

The README states "We recommend that you're using yarn dev during development..." but there isn't a "dev" script defined. Also, when I run "yarn debug" I never get "Server is running on http://localhost:4000" it just hangs with the last line of text "[nodemon] starting 'ts-node --inspect src/index.ts'"

yarn --version
1.5.1
node --version 
v10.15.3
nodemon v1.18.11
ts-node --version
v8.1.0
graphql --version
3.0.11
prisma v1.31.11

Any ideas?