Am I correct in thinking that the max length for a cast is 320 characters?

https://gotnojuice.substack.com/

det finnes ikke dårlig vær bare dårlig klær.

for plain text, yes.

Keep in mind emojis and links are counted differently though. Embeds too.

Building /magicframes. Holistic views of tech. Helping teams and devs manage complexity and build more effective software.

these sound like edge cases I need to test :D

Seems like emojis = 5 chars, which will be fine as that'll be collected in my char check I think.