-- I think the name doesn't sell me or even most people because "checksum" is more of a security/crypto term. When I saw the HN post say Checksum I didn't think it was going to be about end-to-end tests. I thought it was going to be some crypto thing. Maybe a name like "Tested" or "Covered" is going to click better with the potential customer.
-- I don't feel like the demo video is making me feel like I know what this product is doing. I could also be misunderstanding the product. It might help more if the demo showed the following (in ideally less than 5-10s or most users might tune out):
1. A quick setup step for checksum 2. A set of generated tests 3. Passing tests
Seeing those steps would give me the emotion as an end-user "wow this must something I can quickly setup and will make me feel like I have test coverage out of the box"