remember-handler-functions

remember-handler-functions is a variable defined in `remember.el'.
Its value is

(remember-append-to-file)

• This variable may be risky if used as a file-local variable.

Documentation:
Functions run to process remember data.
Each function is called with the current buffer narrowed to what the
user wants remembered.
If any function returns non-nil, the data is assumed to have been
recorded somewhere by that function.

You can customize this variable.