This is a list of things I'm either working on, or am planning
to work on. There may be some notes mixed in.

----------------------------------------------------------------

Dictionary

- avoid duplication of `d:source` strings
- add `d:hash` field (compatible w/ retro/napia)
- add `d:source-line` field
- use `d:hash` when looking up words

----------------------------------------------------------------

FFI

- all significant global state in a structure
- foreign functions will receive a pointer to this and can
  read/modify as needed

----------------------------------------------------------------

Debugger

----------------------------------------------------------------

Retro/Napia Compatibility

- full compatibility is not possible, but both should be similar
  when practical
- add non-symbolic names for some words:
  n:add n:sub n:mul n:div n:mod n:divmod

----------------------------------------------------------------

Unicode Strings

- finish implementing byte arrays (port from retro/napia)
- implement reliable code to find a utf8 character inside the
  array
- use this to implement s:fetch, s:store

----------------------------------------------------------------