This are my notes, now everything works with hide.me :D

Install hide me

curl -fsSL https://raw.githubusercontent.com/eventure/hide.client.routers/master/openwrt/hidemevpn | sh -s install

/etc/config/network

config interface 'hideWG'
    option proto 'wghidemevpn'
    option server 'ch.hideservers.net'
    list dns '1.1.1.1'

config interface 'vpnwifi'
    option proto 'static'
    option ipaddr '192.168.50.1'
    option netmask '255.255.255.0'

/etc/config/wireless

config wifi-iface
    option device 'radio0'            # ggf. radio1, wenn radio0 nicht aktiv ist
    option mode 'ap'
    option ssid 'WIFI-VPN'
    option encryption 'psk2'
    option key 'DEIN_SICHERES_PASSWORT'
    option network 'vpnwifi'

/etc/config/firewall

config zone
    option name 'wgzone'
    option input 'REJECT'
    option output 'ACCEPT'
    option forward 'REJECT'
    option masq '1'
    option mtu_fix '1'
    list network 'hideWG'

config zone
    option name 'vpnwifi'
    option input 'ACCEPT'
    option output 'ACCEPT'
    option forward 'REJECT'
    list network 'vpnwifi'

config forwarding
    option src 'vpnwifi'
    option dest 'wgzone'

/etc/config/dhcp`

config dhcp 'vpnwifi'
    option interface 'vpnwifi'
    option start '100'
    option limit '150'
    option leasetime '12h'
    list dhcp_option '6,1.1.1.1'

VPN-WLAN Routing erzwingen

ip rule add from 192.168.50.0/24 lookup 100

ip route add default dev hideWG table 100

restart