diff --git a/.devcontainer/Dockerfile b/.devcontainer/Dockerfile
index ce84962b9..5c26c114d 100644
--- a/.devcontainer/Dockerfile
+++ b/.devcontainer/Dockerfile
@@ -1,38 +1,25 @@
-# Use Ubuntu 24.04 as base image
 FROM ubuntu:24.04
 
 ENV DEBIAN_FRONTEND=noninteractive
-ENV DEVCONTAINER_ENV=1
-ENV BUNDLE_PATH=/usr/local/bundle
-ENV BUNDLE_APP_CONFIG=/usr/local/bundle
 
-# Set working directory
 WORKDIR /workspace
 
-COPY Gemfile Gemfile.lock ./
+RUN export DEBIAN_FRONTEND=noninteractive
+RUN apt-get update
+RUN apt-get install -y --no-install-recommends git gh
+RUN apt-get install -y --no-install-recommends less
+RUN apt-get install -y --no-install-recommends python3
+RUN apt-get install -y --no-install-recommends python3.12-venv
+RUN apt-get install -y --no-install-recommends python3-pip
+RUN apt-get install -y --no-install-recommends build-essential
+RUN apt-get install -y --no-install-recommends ruby
+RUN apt-get install -y --no-install-recommends ruby-dev
+RUN apt-get install -y --no-install-recommends bundler
+RUN apt-get install -y --no-install-recommends nodejs
+RUN apt-get install -y --no-install-recommends npm
+RUN apt-get install -y --no-install-recommends ditaa
+RUN apt-get clean autoclean
+RUN apt-get autoremove -y
+RUN rm -rf /var/lib/{apt,dpkg,cache,log}/*
 
-# Install dependencies
-RUN apt-get update && \
-    apt-get install -y --no-install-recommends \
-    git \
-    gh \
-    less \
-    python3 \
-    python3.12-venv \
-    python3-pip \
-    build-essential \
-    ruby \
-    ruby-dev \
-    bundler \
-    nodejs \
-    npm \
-    ditaa && \
-    bundle install && \
-    apt-get clean autoclean && \
-    apt-get autoremove -y && \
-    rm -rf /var/lib/{apt,dpkg,cache,log}/*
-
-COPY package.json package-lock.json ./
-
-# Stay in workspace directory
 WORKDIR /workspace
\ No newline at end of file