diff --git a/.github/workflows/shellcheck.yml b/.github/workflows/shellcheck.yml
deleted file mode 100644
index 91e77ef..0000000
--- a/.github/workflows/shellcheck.yml
+++ /dev/null
@@ -1,18 +0,0 @@
-name: Check Shell scripts
-
-on:
-  pull_request:
-
-jobs:
-  shfmt:
-    runs-on: ubuntu-latest
-    steps:
-      - uses: actions/checkout@v6
-      - run: docker run --rm -v "$(pwd)":/sh -w /sh mvdan/shfmt:v3.1.1 -sr -i 2 -l -w -ci .
-      - run: git diff --color --exit-code
-
-  shellcheck:
-    runs-on: ubuntu-latest
-    steps:
-      - uses: actions/checkout@v6
-      - run: shellcheck *.sh
diff --git a/Dockerfile b/Dockerfile
index 0cc4e50..86732c1 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,15 +1,27 @@
 # syntax=docker/dockerfile:1
-FROM node:lts-alpine3.23
 
-LABEL org.opencontainers.image.source=https://github.com/chorrell/docker-json
+# Build stage - install dependencies
+FROM node:lts-alpine3.23 AS builder
 
 ARG MAJOR_VERSION=11
 
 RUN set -ex \
     && npm install -g json@^$MAJOR_VERSION.0.0
 
-COPY --link docker-entrypoint.sh /usr/local/bin/
+# Minimal runtime stage - use alpine base and copy only Node binary
+FROM alpine:3.23
+
+LABEL org.opencontainers.image.source=https://github.com/chorrell/docker-json
+
+# Copy only the Node binary and essential libraries from builder
+COPY --from=builder /usr/local/bin/node /usr/local/bin/node
+COPY --from=builder /usr/lib/libstdc++.so.6 /usr/lib/libstdc++.so.6
+COPY --from=builder /usr/lib/libgcc_s.so.1 /usr/lib/libgcc_s.so.1
+
+# Copy only the json package (no dependencies)
+COPY --from=builder /usr/local/lib/node_modules/json /usr/local/lib/node_modules/json
 
-ENTRYPOINT ["docker-entrypoint.sh"]
+# Use node to run json.js directly
+ENTRYPOINT ["/usr/local/bin/node", "/usr/local/lib/node_modules/json/lib/json.js"]
 
 CMD ["--version"]
diff --git a/docker-entrypoint.sh b/docker-entrypoint.sh
deleted file mode 100755
index b8c6270..0000000
--- a/docker-entrypoint.sh
+++ /dev/null
@@ -1,8 +0,0 @@
-#!/bin/sh
-set -e
-
-if [ "${1#-}" != "${1}" ] || [ -z "$(command -v "${1}")" ]; then
-  set -- json "$@"
-fi
-
-exec "$@"