Transmission

1. opkg update
2. opkg install transmission-daemon-openssl transmission-web luci-app-transmission
3. opkg install nano
4. nano /etc/config/transmission
5. chmod -R 777 /tmp/USB_KEY

It is necessary to make a swap file on AR150 otherwise you cannot access the web interface...

1. cd /path/where/we/will/make/swap-file
2. Create a 64MB swap-file:
   dd if=/dev/zero of=swap-file bs=1M count=64
3. mkswap swap-file
4. swapon swap-file
5. Then go to LuCI to specify the swap file in System > Mount points to have it mounted at next router reboot.

For worldwide access add a rule in LEDE firewall:
Any tcp, udp
From any host in wan
To any router IP at port 9091 on this device

Source

Bandwidth Monitor (nlbw)

Aussi :

https://github.com/Kiougar/luci-wrtbwmon