[icecube]

Just download a Host file[1] and you can have system level ad blocking on your laptop.

As for running an adblock on your router, if your router supports openwrt, openwrt has an adblock addon[2] that is easily configurable.

Unfortunately, you will lose out on the statistics that Pi-hole collects.

[1] https://github.com/StevenBlack/hosts

[2] https://github.com/openwrt/packages/tree/master/net/adblock/...