make platform specific sops

Dockerfile

@@ -1,4 +1,5 @@
 FROM debian:12-slim
+ARG TARGETPLATFORM
 RUN apt update && apt install python3-pip python3 pipx git curl zsh dialog jq yq fzf exa neovim locales -y
 COPY locale.gen /etc/locale.gen
 RUN locale-gen
@@ -17,7 +18,15 @@ RUN curl --proto '=https' --tlsv1.2 -fsSL https://get.opentofu.org/install-opent
   chmod +x /tmp/install-opentofu.sh && /tmp/install-opentofu.sh --install-method deb
 
 # Sops
-RUN curl -LO https://github.com/getsops/sops/releases/download/v3.9.0/sops-v3.9.0.linux.amd64 && mv sops-v3.9.0.linux.amd64 /usr/bin/sops && chmod +x /usr/bin/sops
+RUN if [ "$TARGETPLATFORM" = "linux/amd64" ]; then \
+        echo "Performing actions specific to AMD64"; \
+        curl -LO https://github.com/getsops/sops/releases/download/v3.9.0/sops-v3.9.0.linux.amd64 && mv sops-v3.9.0.linux.amd64 /usr/bin/sops && chmod +x /usr/bin/sops \
+    elif [ "$TARGETPLATFORM" = "linux/arm64" ]; then \
+        echo "Performing actions specific to ARM64"; \
+        curl -LO https://github.com/getsops/sops/releases/download/v3.9.0/sops-v3.9.0.linux.arm64 && mv sops-v3.9.0.linux.arm64 /usr/bin/sops && chmod +x /usr/bin/sops \
+    else \
+        echo "Unknown platform"; \
+    fi
 
 # OhMyZsh
 RUN /bin/zsh -c 'sh -c "$(curl -fsSL https://raw.githubusercontent.com/ohmyzsh/ohmyzsh/master/tools/install.sh)"'