it's editor written by emacs lisp which has powerful functions.

to see the release log for M-x view-emacs-news

selection: C-SPC (in emacs, it means to start mark). use arrow key to selection words. kill-ring-save: M-w put the selection into kill ring. yank: C-y paste recent kill ring.

univeral arguments

from Spacemacs to your custom emacs

https://protesilaos.com/emacs/dotemacs#h:98d3abcc-f34e-4029-aabc-740f0b6421f8 this guy writes a lot of customization for his own emacs config. Maybe, I can learn some usages from him.

10 specific ways to improve your productivity with emacs

https://sites.google.com/site/steveyegge2/effective-emacs

Any unnecessary motions is wasted energy and yields sloppy results Emacs offers a fine-grained (dense) control The author says emacs eventually becomes like an extension of your body

Emacs Run in Docker

to add the ip in the xhost's access control list

open -a XQuartz
xhost + $ip

following command should run in the shell of x11 (which is opened by Quartz)

ip=$(ifconfig en0 | grep inet | awk '$1=="inet" {print $2}')
docker run -ti --name emacs\
       -e DISPLAY=$ip:0\
       -e UNAME="emacser"\
       -e GNAME="emacsers"\
       -e UID="1000"\
       -e GID="1000"\
       -v /Users/jing/.spacemacs:/home/emacs/.spacemacs \
       -v /Users/jing/.emacs.d:/home/emacs/.emacs.d \
       -v /Users/jing/Desktop:/mnt/workspace \
       jare/emacs emacs

However, this is still has some problem. Ex. the extension will not load when you run with gui mode. I don't know why.

net-utils (builtin pakcage) have some interesting implementations

For more detial, to see emacs/30.0.60/lisp/net/net-utils.el

github action

https://github.com/marketplace/actions/set-up-emacs

some good packages

• https://github.com/DamienCassou/flycheck-hledger/blob/master/Makefile

• emacs-aio (async)

• emacs embark

emacs lisp api faq