The problem with Nostr all the things is hash this hash that. So, whatever is uploaded is required to be unchanged. I don’t make the rules, but users live with consequences

Every other platform does this in the back end yes. It would be great for Nostr to see a good video handling system, but it's yet to come about. Supporting HLS would be fantastic. I saw so many vlogs that where 5 minutes long and 2GB, while I encode full 2 hour movies at half the size. If Nostr video ever wants to take off this needs to be solved. I've been banging this drum for months.

shipyard.pub is very basic when it comes to scheduling. i'd like to see something like hootsuite or buffer. i've used those for social media management for various brand accounts over the years and they work great. we won't get nostr added to them though unless nostr blows up and reaches the masses. someone would need to build something like that. i don't see why this couldn't be added to #notedeck to be honest. it already resembles these apps with various columns.

Have you tried pidgeon.lol for scheduling? I've been checking it out over the last couple days. It's slick. I've never used schedulers so I cant compare, but it's dvm driven & it does quite a lot. What I've used of it seems to work really well.