Tailscale is a zero config VPN for building secure networks.
Only compatible with luci2 version
Enter in your openwrt dir
1. replace the default startup script and configuration of Tailscale.
sed -i '/\/etc\/init\.d\/tailscale/d;/\/etc\/config\/tailscale/d;' feeds/packages/net/tailscale/Makefile
2. get luci-app-tailscale source & building
git clone https://github.com/asvow/luci-app-tailscale package/luci-app-tailscale
make menuconfig # choose LUCI -> Applications -> luci-app-tailscale
make package/luci-app-tailscale/compile V=s # luci-app-tailscale
Upload the prebuilt ipk package to the /tmp directory of OpenWrt
Login OpenWrt terminal (SSH)
opkg update
opkg install --force-overwrite /tmp/luci-*-tailscale*.ipk