From 19259bf4dc1d8ac939d3594da0ec047f7ecdd1bd Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Torjus=20H=C3=A5kestad?= <torjus@usit.uio.no>
Date: Fri, 6 Feb 2026 20:31:15 +0100
Subject: [PATCH] chore: teach claude about nvd

---
 CLAUDE.md | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/CLAUDE.md b/CLAUDE.md
index 40ed0c8..66c34e4 100644
--- a/CLAUDE.md
+++ b/CLAUDE.md
@@ -32,6 +32,13 @@ If moving things around, you can use `nix eval` before and after changes to chec
 nix eval .#nixosConfigurations.magicman.config.nix.settings.substituters --json | jq
 ```
 
+### Comparing with Running System
+```bash
+# Build and compare against currently running system
+nixos-rebuild build --flake . && nvd diff /run/current-system result
+```
+This shows package version changes, added/removed packages, and closure size differences between what's currently running and the repo configuration.
+
 ### Common Operations
 ```bash
 # Check flake without building