You can enable ssh in the gui and then login to install packages (using opkg) or edit config files or whatever. opkg is a lot like dpkg but a bit more limited.

You can enable ssh in the gui and then login to install packages (using opkg) or edit config files or whatever. opkg is a lot like dpkg but a bit more limited. Unfortunately the login shell is busybox so you're fairly limited in what's available. All of this is pretty understandable since openwrt is targeted to really low specs . 4MB storage/32MB RAM was the target until 2022. It's now 16MB storage, 128MB RAM which is still pretty low.