Remember Mode is great but I encountered two limitations:

- The major mode to edit data to remember is hard-coded to `text-mode'
  where one may want to use Enriched text, Markdown, etc. modes

- A possible workflow is to select the file to store the data
  dynamically, after the data to remember has been edited

A patch is attached that turn `remember-mode' into a minor mode and
define a customizable variable `remember-initial-major-mode' to select
the major mode used to edit data to remember.

It also defines the `remember-append-in-data-directory' handler that
covers the second limitation.

Finally, a prefix map is defined for the `remember',
`remember-clipboard', and `remember-notes' commands.

I am using analogous modifications to maintain my personnal notes in
Markdown format. I don't claim the patch is to be used as is, but I think it illustrate
possible evolutions of the simple but great Remember mode. 

Are such changes acceptable and pertinent? Is it worth to fine tune the patch? Comments welcome!

(I know of Org Capture mode but don't understand why capturing notes relates to Org mode and I am not interested in Org markup langage; No judgement, just used to Makdown).

In GNU Emacs 30.0.93 (build 1, x86_64-pc-linux-gnu, GTK+ Version
 3.24.38, cairo version 1.16.0) of 2025-01-01 built on peitho
Repository revision: 7acfea19358da3a02e5884f5e7d56c87d7b16616
Repository branch: emacs-30
System Description: Debian GNU/Linux 12 (bookworm)

Configured using:
 'configure --with-pgtk CFLAGS=-O3'

Configured features:
ACL CAIRO DBUS FREETYPE GIF GLIB GMP GNUTLS GPM GSETTINGS HARFBUZZ JPEG
LCMS2 LIBOTF LIBSELINUX LIBSYSTEMD LIBXML2 MODULES NATIVE_COMP NOTIFY
INOTIFY PDUMPER PGTK PNG RSVG SECCOMP SOUND SQLITE3 THREADS TIFF
TOOLKIT_SCROLL_BARS TREE_SITTER WEBP XIM GTK3 ZLIB

Important settings:
  value of $LANG: fr_FR.UTF-8
  value of $XMODIFIERS: @im=ibus
  locale-coding-system: utf-8-unix

Major mode: Shell

Minor modes in effect:
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  pulsar-global-mode: t
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  which-key-mode: t
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  show-paren-mode: t
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  line-number-mode: t
  indent-tabs-mode: t
  transient-mark-mode: t
  auto-composition-mode: t
  auto-encryption-mode: t
  auto-compression-mode: t

Load-path shadows:
/home/matthias/.config/emacs/elpa/which-key-20240620.2145/which-key hides /usr/local/share/emacs/30.0.93/lisp/which-key
/home/matthias/.config/emacs/elpa/modus-themes-20250107.1034/theme-loaddefs hides /usr/local/share/emacs/30.0.93/lisp/theme-loaddefs

Features:
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shortdoc find-dired ffap dabbrev hl-line grep quail rng-xsd xsd-regexp
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mm-view mml-smime smime gnutls dig gnus-sum shr pixel-fill kinsoku
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git-link-autoloads gnu-elpa-keyring-update-autoloads gptel-autoloads
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meson-mode-autoloads modus-themes-autoloads nginx-mode-autoloads
powershell-autoloads pulsar-autoloads restclient-autoloads
rfc-mode-autoloads info spacious-padding-autoloads speechd-el-autoloads
systemd-autoloads rx tldr-autoloads vertico-autoloads
which-key-autoloads package browse-url url url-proxy url-privacy
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url-domsuf url-util mailcap url-handlers url-parse auth-source cl-seq
eieio eieio-core cl-macs icons password-cache json subr-x map byte-opt
gv bytecomp byte-compile url-vars cl-loaddefs cl-lib rmc iso-transl
tooltip cconv eldoc paren electric uniquify ediff-hook vc-hooks
lisp-float-type elisp-mode mwheel term/pgtk-win pgtk-win term/common-win
touch-screen pgtk-dnd tool-bar dnd fontset image regexp-opt fringe
tabulated-list replace newcomment text-mode lisp-mode prog-mode register
page tab-bar menu-bar rfn-eshadow isearch easymenu timer select
scroll-bar mouse jit-lock font-lock syntax font-core term/tty-colors
frame minibuffer nadvice seq simple cl-generic indonesian philippine
cham georgian utf-8-lang misc-lang vietnamese tibetan thai tai-viet lao
korean japanese eucjp-ms cp51932 hebrew greek romanian slovak czech
european ethiopic indian cyrillic chinese composite emoji-zwj charscript
charprop case-table epa-hook jka-cmpr-hook help abbrev obarray oclosure
cl-preloaded button loaddefs theme-loaddefs faces cus-face macroexp
files window text-properties overlay sha1 md5 base64 format env
code-pages mule custom widget keymap hashtable-print-readable backquote
threads dbusbind inotify dynamic-setting system-font-setting
font-render-setting cairo gtk pgtk lcms2 multi-tty move-toolbar
make-network-process native-compile emacs)

Memory information:
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