With the official OpenWrt firmware, there are many different VPN packages available to install. They can be configured as server or client, depending on your needs.
But this forum should not be used for password sharing or transferring of files that are not publicly available.
I wanted specifically the Firmware on the link I provided because I need the passwall/vpn for my router. and I don't know how to install the v2ray vpn on openwrt, so that's why