Emacs: Interactive Abbrev 🚀
If you have hundreds of abbrevs , one problem is that you forgot what's the abbrev.
Solution is to have a prompt listing all abbreves. A Interactive abbrev.

Here's the code:
(defvar xah-interactive-abbrev-alist nil "A asso list for `xah-interactive-abbrev'. Key is abbrev string. Value is the text to be inserted.") (setq xah-interactive-abbrev-alist '(("optimize png" . "oxipng -o 4 --strip safe *png") ("delete metadata" . "exiftool -all= -overwrite_original *png *jpg") ("gif to mp4" . "ffmpeg -f gif -i x.gif x.mp4") ("gif to webm" . "ffmpeg -f gif -i x.gif x.webm") ("gitdiff" . "git --no-pager diff --color --no-index f1 f2") ("git archive" . "git archive -o ../xxgit.zip HEAD") ("image convert" . "magick xx yy") ("image scale" . "magick xx -scale 50% yy") ("mov to mp4" . "ffmpeg -f mov -i x.mov x.mp4") ("unix chmod file" . "find . -type f -exec chmod 644 {} ';'") ("unix chmod2" . "find . -type d -exec chmod 755 {} ';'") ("unix delete emacs backup~" . "find . -name \"*~\" -delete") ("unix delete empty dir" . "find . -depth -empty -type d -delete") ("unix delete empty file" . "find . -type f -empty") ("unix delete mac DS_Store" . "find . -name \".DS_Store\" -delete;") ("unix delete mac __MACOSX" . "find . -depth -name \"__MACOSX\" -type d -exec rm -rf {} ';'") ("unix grep" . "grep -r -F \"hhhh\" --include='*html' ~/web") ("unix image -bmp2png" . "find . -name \"*bmp\" | xargs -l -i basename \"{}\" \".bmp\" | xargs -l -i magick \"{}.bmp\" \"{}.png\"") ("unix image Batch" . "find . -name \"*png\" | xargs -l -i basename \"{}\" \".png\" | xargs -l -i magick \"{}.png\" \"{}.jpg\"") ("unix list empty dir" . "find . -depth -empty -type d") ("ytd" . "youtube-dl -f 'bestvideo,bestaudio' -o 'f%(format_id)s.%(ext)s' url") ("powershell subdir size" . "dir -Directory | ForEach-Object { Write-Host $_.name \" \" -NoNewLine; \"{0:N0}\" -f ((dir $_ -File -Recurse | measure -Property Length -sum).sum / 1mb); }") ("powershell diff" . "diff (cat f1) (cat f2) ") ("powershell emacs backup~" . "dir -Recurse -File -Filter *~ | ForEach-Object {$_.fullname}") ("powershell .DS_Store" . "dir -Recurse -File -Filter .DS_Store | ForEach-Object {$_.fullname}") ("powershell htaccess" . "dir -Recurse -File -Filter .htaccess") ("powershell dir" . "dir -Recurse -File -Filter xx* | ForEach-Object {$_.fullname}"))) (defun xah-interactive-abbrev () "Prompt to insert string from `xah-interactive-abbrev-alist'. URL `http://xahlee.info/emacs/emacs/emacs_interactive_abbrev.html' Created: 2017-08-13 Version: 2025-01-02" (interactive) (let ((xinput (completing-read "abbrevs:" xah-interactive-abbrev-alist nil t))) (insert (cdr (assoc-string xinput xah-interactive-abbrev-alist t)))))
You should have a easy key for this command, such as F9. 〔see Emacs Keys: Define Key〕
also, you should use fido-vertical-mode or similar for vertical list.