Rtl8196e Openwrt ((exclusive)) -

If it boots, you will have a command-line interface. Install dropbear (SSH) manually via scp. Forget about LuCI—it requires 8MB+ flash.

Realtek RTL8196E chipset is a common system-on-a-chip (SoC) found in entry-level routers and Wi-Fi repeaters. While it is technically possible to run OpenWrt on it, the SoC is not officially supported by the main OpenWrt project. Current Support Status rtl8196e openwrt

DD-WRT briefly flirted with RTL8196E support around 2015 but abandoned it due to driver issues. Do not waste time. If it boots, you will have a command-line interface