From 975b92115ac4e756c8d0d57cab88a757e06cf07c Mon Sep 17 00:00:00 2001
From: Eric <eric@dgren.dev>
Date: Wed, 4 Mar 2026 09:44:37 +0100
Subject: [PATCH] feat: cache nix packages in ci

---
 .github/workflows/copilot-setup-steps.yml | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/.github/workflows/copilot-setup-steps.yml b/.github/workflows/copilot-setup-steps.yml
index b38dd56..9fc1694 100644
--- a/.github/workflows/copilot-setup-steps.yml
+++ b/.github/workflows/copilot-setup-steps.yml
@@ -35,5 +35,11 @@ jobs:
           extra_nix_config: |
             experimental-features = nix-command flakes
 
+      - name: Restore and save Nix store cache
+        uses: nix-community/cache-nix-action@v7
+        with:
+          primary-key: nix-${{ runner.os }}-${{ hashFiles('**/*.nix', '**/flake.lock') }}
+          restore-prefixes-first-match: nix-${{ runner.os }}-
+
       - name: Install flake dependencies
         run: nix develop --accept-flake-config -c true