ASUS RT-AC1750_B1 Merlin Firmware and fancyss Setup

ASUS RT-AC1750_B1 is a quite old router. It was first available in 2016. I got it from the former landlord, and found that it could use Merlin Firmware and install some add-on which makes me bypass GFW as long as my device gets connected to the router. This is very convenient because it frees you from installing different softwares on different platforms. And if the proxy subscribe or something goes wrong, you only have to fix one problem instead of many. However, as it is a very old router, it has some cons, for example, not supporting Wifi7, may heat up when running and so on. But for me it is bearable.