It's older now, but for several years I used a Buffalo N300 router which came pre-flashed running DDRWT out of the box: https://www.buffalotech.com/products/ai

It's older now, but for several years I used a Buffalo N300 router which came pre-flashed running DDRWT out of the box: https://www.buffalotech.com/products/airstation-highpower-n300-open-source-dd-wrt-wireless-router https://www.buffalotech.com/products/airstation-highpower-n3... I say "used" because my main router has been updated to an AC1900 solution, but it's still kicking, I'm just running it as an access point. Unfortunately, both it and their updated AC1200 solution: https://www.buffalotech.com/products/airstation-ac1200-gigabit-dual-band-open-source-dd-wrt-nxt-wireless-router https://www.buffalotech.com/products/airstation-ac1200-gigab... are discontinued. Also, while it's pre-flashed with open-source software, it's not Open Source Hardware.