Typescript config - tsconfig.json
Prettier config - prettier.config.js
ESlint - eslint.config.js
ESlint for Jest - eslint.config-jest.js
yarn add -D https://github.com/mangata-finance/eslint-config-mangata.git
Extend these configs with local config files.
I recommend using VSCode for JS/TS editing. Be sure to also install the Prettier and ESlint extensions. This should provide you with realtime feedback in the IDE.