Packet Manager on Hue bridge - openwrt

Question

I have successfully jailbreaked my Hue Bridge 2.1 and now have Root Access over SSH to it.
But I don't know how I can Install a Packet Manager (like opkg) on it.
It looks like wget is installed, but nothing else really. Also SCP works.
I have tried everything, but nothing seems to work. (See console). (Full console dump here)
login as: root
root#192.168.1.69's password:
BusyBox v1.23.2 (2018-10-25 16:12:28 UTC) built-in shell (ash)
_ _ _ _ ______ ____ _ _ ___ __ __
| | | | | | | ____| | _ \ (_) | | |__ \ \ \ / /
| |__| | | | | |__ | |_) |_ __ _ __| | __ _ ___ ) | \ V /
| __ | | | | __| | _ <| '__| |/ _` |/ _` |/ _ \ / / > <
| | | | |__| | |____ | |_) | | | | (_| | (_| | __/ / /_ _ / . \
|_| |_|\____/|______| |____/|_| |_|\__,_|\__, |\___| |____(_)_/ \_\
__/ |
|___/
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Version: 1810251352
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root#Wohnzimmer:~# busybox --install opkg
--install: applet not found
root#Wohnzimmer:~# opkg
-ash: opkg: not found
root#Wohnzimmer:~# wget
BusyBox v1.23.2 (2018-10-25 16:12:28 UTC) multi-call binary.
Usage: wget [-c|--continue] [-s|--spider] [-q|--quiet] [-O|--output-document FILE]
[--header 'header: value'] [-Y|--proxy on/off] [-P DIR]
[-U|--user-agent AGENT] URL...
Retrieve files via HTTP or FTP
-s Spider mode - only check file existence
-c Continue retrieval of aborted transfer
-q Quiet
-P DIR Save to DIR (default .)
-O FILE Save to FILE ('-' for stdout)
-U STR Use STR for User-Agent header
-Y Use proxy ('on' or 'off')

Answer 1

You can't just install the packet manager using busybox --install opkg orsudo apt-get install <any-package>.
This below error message clearly says the opkg packet is not found, you need to build the source, and add that in your target.
root#Wohnzimmer:~# busybox --install opkg
--install: applet not found
It's Busybox system for that you need to download the packet manager archive against the target what they are using, for example: if it is ARM then compile using ARM toolchain in your host system then move the compiled binary to the target. After moving the compiled utility you can place the binary in /sbin dir of the root fs.