A workout sync with the Hammerhead Karoo2 would be great. I placed a ticket to the support and got this answer
" Hi Peter,
Thanks for reaching out to us.
Sorry to say but currently the Workouts can be imported only from TrainingPeaks. We have created a KB article that clearly explains this.
Please see: Workouts
You can also perform Xert Workouts on Karoo.
For Xert Workouts, please have a look at this article: Xert App
We do have plans to expand the integrations with more platforms and I have added your vote for intervals.icu integration.
Your feedback is enormously valuable to us and we always value those who are keen to give us their feedback. Please keep providing regular insights and suggestions. We appreciate you taking the time to do so.
In the meantime, please let me know if there’s anything else that I can help with, and have a great rest of your day!