Reducing RAM usage - split package size into erase page size and write page size

[dragonnn]

Ekv works great but with 4096 page size it does allocate 8kB of RAM on the stack with can be pretty huge on a 96kb RAM chip.
My flash does have 4096 erase page size but the write can be done in 256 pages (with any offset), maybe splinting up page size into two settings could make it use a 2x256 buffer size?
Or maybe ekv could use free flash sectors as a buffer?

[Dirbaio]

#7 does this. You can now set max-chunk-size low, to reduce the buffer memory requirements.