diff --git a/images/dotnet/Dockerfile b/images/dotnet/Dockerfile
index 90891bf..ffa313e 100644
--- a/images/dotnet/Dockerfile
+++ b/images/dotnet/Dockerfile
@@ -1,10 +1,3 @@
-FROM mcr.microsoft.com/devcontainers/base:latest AS builder
-
-WORKDIR /builder
-
-ADD --chown=vscode:vscode --chmod=500 https://dot.net/v1/dotnet-install.sh .
-
-
 FROM mcr.microsoft.com/devcontainers/base:latest
 
 USER vscode
@@ -13,5 +6,4 @@ ENV PATH=$PATH:$DOTNET_ROOT:$DOTNET_ROOT/tools
 
 ARG SDK_VERSION=LTS
 
-RUN --mount=type=bind,from=builder,source=/builder/dotnet-install.sh,target=/builder/dotnet-install.sh \
-    /builder/dotnet-install.sh --channel $SDK_VERSION
\ No newline at end of file
+RUN curl -fsSL https://dot.net/v1/dotnet-install.sh | bash /dev/stdin --channel $SDK_VERSION
diff --git a/images/nodejs/Dockerfile b/images/nodejs/Dockerfile
new file mode 100644
index 0000000..5e8f8b7
--- /dev/null
+++ b/images/nodejs/Dockerfile
@@ -0,0 +1,8 @@
+FROM mcr.microsoft.com/devcontainers/base:latest
+
+USER vscode
+ARG SDK_VERSION=""
+
+RUN curl -fsSL https://fnm.vercel.app/install | bash
+
+RUN if [ -n "$SDK_VERSION" ]; then fnm install "$SDK_VERSION"; fi