• npx gitignore node

• yarn init --yes

• volta pin node yarn

• yarn add -D typescript eslint jest

• yarn tsc --init

• yarn eslint --init

• yarn add -D jest @types/jest @babel/preset-env @babel/preset-typescript

• yarn add -D @microsoft/api-extractor @microsoft/api-documenter

• yarn api-extractor init

• mkdir etc

• yarn api-extractor run --local

• yarn api-documenter markdown -i temp -o docs (examples)[https://mike-north.github.io/js-documentation-cases/]