Ask HN: What are some good places to get a jump start on the state of crypto dev

i am interested in experimenting with tools and languages that are the current state of the art in crypto. i really only know about BTC and ETH and vaguely understand blockchain and would like to do some catching up and see where i could contribute or develop something new. there is a metric shit ton of info out there so rather than randomly googling around i would like to find some solid sources of jumpstart info for someone new like myself but who has dev skills. i am interested in ways to create coins, contracts, etc but really all info is welcome.