I have been going through this with claude and qwenvl3:8b this week. Both are pretty decent at inferring context and analyzing contact sheets. Finding high visual interest moments with a mixture of coarse and fine keyframes.
Hydrogen ICE is not a viable technology for many reasons. Combustion temperatures would require exotic alloys to manage and the power density is quite low. I remember BMW made a H2 ice version of one of their large V12s and it made like 125hp...