when storing values (in a leaf), we don't need a separate byte for flags.  just store a value (either the len, if inline, or the page, if overflow) shifted.  if the 0 bit is not set, it is inline.  otherwise, it is either a tombstone (if the shifted value is 0) or an overflow.
when storing values (in a leaf), we don't need a separate byte for flags.  just store a value (either the len, if inline, or the page, if overflow) shifted.  if the 0 bit is not set, it is inline.  otherwise, it is either a tombstone (if the shifted value is 0) or an overflow.

zumero/Elmo,zumero/Elmo