We just launched an API and should have a migration tool soon. Right now, it's typically a simple CSV import of issues, but the data mapping doesn't work too well with Jira's data. So far, it's been a trojan horse approach. A small team starts using Tara, enjoys the experience, and it starts to spread within the organization. Startups have been our bread & butter, but we also have small teams at larger enterprises using it.

The long game is to continue with the approach of allowing small teams to use Tara, and go under the radar for as long as possible.

As for Notion integration, yup, it's on the roadmap. Our integrations roadmap should get faster now that our restful API fully releases this week.