was getting a bit annoyed that when sending patches upstream, i would usually go through the same commands when submitting patches upstream. thought it would be better to make an interactive session so introduced `b4 flow`:
https://lore.kernel.org/tools/20250302-flow-v1-1-3247c022bbac@gmail.com/T/#u
Based on:
- https://www.youtube.com/watch?v=QBR06ml2YLQ
- https://www.youtube.com/watch?v=-Vld9aoFPwU