flim binary package in Ubuntu Jammy amd64

 FLIM (Faithful Library about Internet Message) is a library to provide
 basic functions about message representation and encoding for emacsen.
 It consists of following modules:
 .
  std11.el STD 11 (RFC 822) parser and utility
  mime.el to provide various services about MIME-entities
  mime-def.el Definitions about MIME format
  mime-parse.el MIME parser
  mel.el MIME encoder/decoder
  mel-q-ccl.el quoted-printable and Q-encoding encoder/decoder (using CCL)
  mel-q.el quoted-printable and Q-encoding encoder/decoder
  mel-u.el unofficial backend for uuencode
  mel-g.el unofficial backend for gzip64
  eword-decode.el encoded-word decoder
  eword-encode.el encoded-word encoder
 .
 This package provides FLIM-LB, a variant of FLIM using lexical binding
 mainly maintained for Wanderlust mail/news reader.

Source package