Today I bought TP-Link Archer MR200 V6 I would like to get OpenWRT
Btw im so stupid with that and can connect only via Ethernet cable.
As I see no one firmware is avalible for now.
Pls, try to help me <3
https://openwrt.org/docs/guide-developer/adding_new_device
https://openwrt.org/docs/guide-developer/add.new.device
Im felling me so stupid, because my eng is not so good. Than because I cant ever read this guides
As I understand I need install Linux for that deals?
Installing Linux is the smallest of your road blocks ... ,)
RIP, i have no way for that right now, not im my own town 
btw, i just refund this router, ill hope somebody will do that