install nvm and default to node 20

Author: critesjosh

.devcontainer/Dockerfile

@@ -1,3 +1,17 @@
 FROM --platform=linux/amd64 node:lts-bookworm-slim
 SHELL ["/bin/bash", "-c"]
+
+ENV NVM_DIR=/root/.nvm
+ENV NODE_VERSION=20.18.1
+
 RUN apt update && apt install -y curl bash git tar gzip libc++-dev jq
+
+# Install nvm, node and npm
+RUN curl -o- https://raw.githubusercontent.com/nvm-sh/nvm/v0.39.5/install.sh | bash \
+    && . "$NVM_DIR/nvm.sh" \
+    && nvm install ${NODE_VERSION} \
+    && nvm use ${NODE_VERSION} \
+    && nvm alias default ${NODE_VERSION}
+
+# Add node and npm to path
+ENV PATH="${NVM_DIR}/versions/node/v${NODE_VERSION}/bin:${PATH}"