Witth OpenWrt Firmware Selector
https://firmware-selector.openwrt.org/
Version
Aftter you can make your "full version with packages & more "
1 - SSH:
run:opkg list-installed | cut -f 1 -d ' ' | sed ':a;N;$!ba;s/\n/ /g' > liste.txt
2 - Firmware selector ->
Customize installed packages
remove all in windows
3 - Copy the content of liste.txt
4 - Request Build
After a little time you will now have a version compiled according to your wishes