Ended up updating the Bootstrap package - a new link is at

https://mega.nz/folder/Q8QnkC5L#fC-gewI8HGrt-PFvgfyaQw

Sorry, I don't really know how to get in touch with tesla-coin dot info people, so just posting it here

It is from 27th April 2021. Hope this helps someone who doesn't feel like running the wallet for 3-4 days to get the newest.