diff --git a/Dockerfile b/Dockerfile
index d5f85f9..1e51548 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,11 +1,9 @@
 # syntax=docker/dockerfile:1
 
-ARG NODE_IMAGE=node:22-alpine
-
 ############################
-# Stage 1: build web + api
+# Stage 1: build web + api + prune to prod deps
 ############################
-FROM ${NODE_IMAGE} AS build
+FROM node:22-alpine AS build
 WORKDIR /app
 RUN corepack enable
 COPY package.json pnpm-workspace.yaml pnpm-lock.yaml tsconfig.base.json ./
@@ -19,57 +17,29 @@ RUN --mount=type=cache,target=/root/.local/share/pnpm pnpm install --frozen-lock
 COPY apps ./apps
 COPY packages ./packages
 RUN pnpm --filter web build \
- && pnpm --filter api build
-
-############################
-# Stage 2: production deps
-############################
-FROM ${NODE_IMAGE} AS deps
-WORKDIR /app
-RUN corepack enable
-COPY package.json pnpm-workspace.yaml pnpm-lock.yaml ./
-COPY apps/web/package.json ./apps/web/
-COPY apps/api/package.json ./apps/api/
-COPY packages/ui/package.json ./packages/ui/
-COPY packages/shared/package.json ./packages/shared/
-COPY packages/db/package.json ./packages/db/
-RUN --mount=type=cache,target=/root/.local/share/pnpm pnpm install --frozen-lockfile --prod \
- && find node_modules -type f \( \
-      -name '*.md' -o -name '*.map' -o -name 'LICENSE*' -o -name 'CHANGELOG*' \
+ && pnpm --filter api build \
+ && pnpm prune --prod \
+ && rm -rf apps/web/src apps/api/src \
+          apps/web/node_modules/.vite-temp \
+          apps/web/tsconfig.json apps/api/tsconfig.json \
+ && find node_modules apps/*/node_modules packages/*/node_modules -type f \( \
+      -name '*.md' -o -name '*.map' -o -name '*.ts' -o -name 'LICENSE*' -o -name 'CHANGELOG*' \
       -o -name 'README*' -o -name '.npmignore' -o -name '.eslintrc*' -o -name '.travis.yml' \
       -o -name 'Makefile' -o -name '*.gyp' -o -name '*.gypi' \
-    \) -delete \
- && find node_modules -type d -empty -delete
+    \) -delete 2>/dev/null || true \
+ && find node_modules apps/*/node_modules packages/*/node_modules -type d -empty -delete 2>/dev/null || true
 
 ############################
-# Stage 3: runtime (no npm/pnpm)
+# Stage 2: minimal runtime (alpine + nodejs only)
 ############################
 FROM alpine:3.21
 RUN apk add --no-cache nodejs
 WORKDIR /app
-ENV NODE_ENV=production
-ENV PORT=3001
-COPY --from=deps /app/node_modules ./node_modules
-COPY --from=deps /app/apps/web/node_modules ./apps/web/node_modules
-COPY --from=deps /app/apps/api/node_modules ./apps/api/node_modules
-COPY --from=deps /app/packages/ui/node_modules ./packages/ui/node_modules
-COPY --from=deps /app/packages/shared/node_modules ./packages/shared/node_modules
-COPY --from=deps /app/packages/db/node_modules ./packages/db/node_modules
-COPY --from=build /app/apps/web/dist ./apps/web/dist
-COPY --from=build /app/apps/api/dist ./apps/api/dist
-COPY --from=build /app/apps/api/db ./apps/api/db
-COPY --from=build /app/apps/api/db.js ./apps/api/db.js
-COPY --from=build /app/apps/api/adapters ./apps/api/adapters
-COPY --from=build /app/apps/api/index.js ./apps/api/index.js
-COPY --from=build /app/apps/api/routes ./apps/api/routes
-COPY --from=build /app/apps/api/utils ./apps/api/utils
-COPY --from=build /app/apps/api/projects-service.js ./apps/api/projects-service.js
-COPY --from=build /app/apps/api/sync-scheduler.js ./apps/api/sync-scheduler.js
-COPY --from=build /app/apps/api/sync-account-job.js ./apps/api/sync-account-job.js
-COPY --from=build /app/apps/api/telegram.js ./apps/api/telegram.js
-COPY --from=build /app/apps/web/public ./apps/web/public
+ENV NODE_ENV=production \
+    PORT=3001 \
+    RUNTIME=express
+# Single layer for app code + pruned prod node_modules (symlinks resolved by COPY)
+COPY --from=build /app ./
 EXPOSE 3001
-# Default runtime: legacy Express server (sync still pending migration to Fastify).
-# Set RUNTIME=fastify to use the new Fastify stack.
-ENV RUNTIME=express
+# RUNTIME=express (default, legacy) | RUNTIME=fastify (new stack)
 CMD ["sh", "-c", "if [ \"$RUNTIME\" = \"fastify\" ]; then node apps/api/dist/index.js; else node apps/api/index.js; fi"]