This repository is archived.
New location for the package: https://github.com/actualbudget/actual/tree/master/packages/import-ynab4
npx @actual-app/import-ynab4 <path-to-ynab4-file>
This uses Actual's API to import data from YNAB4.
Docs for usage: https://actualbudget.com/docs/overview/migrating-from-other-apps/