How to assess status of WireGuard in initrd?

I try to connect to WireGuard from my initrd.

I’m on Nixos, if that matters.

wg show <my network name> claims that the network doesn’t exist. Quite possible that it got automatically assigned some other name. Or that it doesn’t show up at all, due to being configured with systemd; quite similar to the setup on the Nixos docs page.

What are the (CLI) tools at my disposal to understand what’s going on? Where to start? I can install (CLI) programs into initrd since I have a shell there.