"So, do you actuallly want a router with DD-WRT pre-installed?"

I bought a router with no OS pre-installed

I chose Coreboot to be pre-installed as a convenience

I prefer to boot from USB stick or the network; there's no secondary storage, only max amount of RAM, no Wifi

The computer is sold as a "router". But for me any computer that runs a kernel I have enabled to forward packets is a "router" and any "router" is a computer I can use for any purpose (within the limits of the hardware)