It would be up to the user to decide how granular to chunk things. Monthly? Yearly? Anyway, seems downloading bulk feeds over and over is going to be problematic.

This would allow for clients to only be required to download the latest chunk of messages instead of the entire feed every time.

Considering scalability, would it make sense to have a naming scheme so that you can break a stream into multiple files? E.g., twtxt.txt, twttxt-1.txt, twtxt-2.txt, etc?

May need to set up a script to automatically push

Not sure how well this will work with github pages...

Just testing...