These instructions are for ARM devices only. For mipsel devices, then see the official entware readme instead at: https://github.com/Entware/entware
Thanks to qnapware - it works just as well on our routers too! Source: http://qnapware.zyxmon.org/binaries-armv7/installer/
Tested on Netgear Nighthawk R7000, with Shibby Tomato / AdvancedTomato v1.28 firmware. On an ext4
partition with it's journalling disabled.