From cd126135ef7e36c78217c0eb173c5d12025039cd Mon Sep 17 00:00:00 2001
From: Cosmo <cosmo@digital-home.site>
Date: Thu, 16 Apr 2026 07:50:47 +0000
Subject: [PATCH] perf: use BuildKit cache mount for npm ci

---
 Dockerfile | 7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)

diff --git a/Dockerfile b/Dockerfile
index ecb3681..3a00749 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,11 +1,14 @@
+# syntax=docker/dockerfile:1
 FROM node:20-alpine AS builder
 WORKDIR /app
 COPY package*.json ./
-RUN npm install
+RUN --mount=type=cache,target=/root/.npm \
+    npm ci --prefer-offline
 COPY . .
 ENV NEXTAUTH_SECRET=digital-home-jwt-secret-2026-cosmo
 ENV NEXTAUTH_URL=https://home.digital-home.site
-RUN npm run build
+RUN --mount=type=cache,target=/root/.npm \
+    npm run build
 
 FROM node:20-alpine AS runner
 WORKDIR /app