Yes.

If you want to access your NPM stuff on both Tailscale and LAN, either:

• Advertise a subnet route for your LAN range, configure Tailscale devices to use it, and use your LAN IP on the AGH rewrite, or
• Split Horizon: Have your DNS respond with a Tailnet IP when it’s queried from the Tailnet range, and respond with a LAN IP when queried from LAN. AGH cannot do this, but other software like Technitium can