I’ve been wanting to try soil blocks and have Eliot Coleman videos about them saved on my HDD.
Potting Soil & Soil Blocks by Eliot Coleman
https://www.youtube.com/watch?v=oA_OFzEDXFY (starts after Bulbs with Barbara)
He uses gadgets from johnnyseeds to make the soils blocks but there’s tons of youtube vids on how to make your own gadget. Will only do one at a time unlike the purchased gadgets but it’s still fast.