Tailscale dns on debian lxc

[systemocracy]

I am new to ttek helper scripts. These are awesome and save lots of time. I notice when adding tailscale to my lxc debian containers (also installed with helper scripts) that custom dns/magic dns works but is overwritten by dhclient when lease expires. I have faced this issue in the past as its a known issue, my workaround is the following:
(from https://wiki.debian.org/resolv.conf )

echo 'make_resolv_conf() { :; }' > /etc/dhcp/dhclient-enter-hooks.d/leave_my_resolv_conf_alone
chmod 755 /etc/dhcp/dhclient-enter-hooks.d/leave_my_resolv_conf_alone

This is not a bug but there are other ways to fix this.
I could not find any reference to this type of issues in the discussions.
Feature request?
Should something like this be included in the tailscale script? maybe a different script for debian lxc post-install?