diff --git a/.devcontainer/Dockerfile b/.devcontainer/Dockerfile
index 82aeac5..d9b78b6 100644
--- a/.devcontainer/Dockerfile
+++ b/.devcontainer/Dockerfile
@@ -7,16 +7,20 @@ ARG TRIVY_VERSION=0.57.1
 FROM ghcr.io/aquasecurity/trivy:$TRIVY_VERSION AS trivy
 
 
-FROM $BASE_IMAGE:$PYTHON_VERSION-$DEBIAN_VERSION
-COPY --from=trivy --chown=vscode: /usr/local/bin/trivy /usr/local/bin/trivy
-
-LABEL maintainer="a5chin <a5chin.origin+contact@gmain.com>"
+FROM python:$PYTHON_VERSION-slim-$DEBIAN_VERSION AS builder
 
 ARG GCLOUD_SDK_VERSION=502.0.0
 ARG TFENV_VERSION=v3.0.0
 
 SHELL [ "/bin/bash", "-o", "pipefail", "-c" ]
 
+# hadolint ignore=DL3008
+RUN apt-get update \
+    && apt-get install -y --no-install-recommends \
+    curl git \
+    && apt-get clean \
+    && rm -rf /var/lib/apt/lists/*
+
 RUN if [ "$(uname -m)" = 'aarch64' ]; then _ARCH=arm; else _ARCH=x86_64; fi \
     && curl -fsS "https://dl.google.com/dl/cloudsdk/channels/rapid/downloads/google-cloud-cli-$GCLOUD_SDK_VERSION-linux-$_ARCH.tar.gz" \
     | tar zx -C /opt \
@@ -27,5 +31,14 @@ RUN if [ "$(uname -m)" = 'aarch64' ]; then _ARCH=arm; else _ARCH=x86_64; fi \
 
 RUN git clone --depth=1 -b $TFENV_VERSION https://github.com/tfutils/tfenv.git /opt/tfenv
 
+
+FROM $BASE_IMAGE:$PYTHON_VERSION-$DEBIAN_VERSION
+
+COPY --from=trivy --chown=vscode: /usr/local/bin/trivy /usr/local/bin/trivy
+COPY --from=builder --chown=vscode: /opt/google-cloud-sdk /opt/google-cloud-sdk
+COPY --from=builder --chown=vscode: /opt/tfenv /opt/tfenv
+
+LABEL maintainer="a5chin <a5chin.origin+contact@gmain.com>"
+
 ENV PATH=$PATH:/opt/google-cloud-sdk/bin
 ENV PATH=$PATH:/opt/tfenv/bin
diff --git a/.gitignore b/.gitignore
index c7ca3fd..fc3885b 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,3 +1,31 @@
+# General
+.DS_Store
+.AppleDouble
+.LSOverride
+
+# Icon must end with two \r
+Icon
+
+
+# Thumbnails
+._*
+
+# Files that might appear in the root of a volume
+.DocumentRevisions-V100
+.fseventsd
+.Spotlight-V100
+.TemporaryItems
+.Trashes
+.VolumeIcon.icns
+.com.apple.timemachine.donotpresent
+
+# Directories potentially created on remote AFP share
+.AppleDB
+.AppleDesktop
+Network Trash Folder
+Temporary Items
+.apdisk
+
 # Local .terraform directories
 **/.terraform/*
 
diff --git a/assets/.DS_Store b/assets/.DS_Store
deleted file mode 100644
index bd8a617..0000000
Binary files a/assets/.DS_Store and /dev/null differ