Add devcontainer, Dockerfile, config-local

.devcontainer/Dockerfile

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+FROM debian:latest
+# Avoid warnings by switching to noninteractive
+ENV DEBIAN_FRONTEND=noninteractive
+# This Dockerfile adds a non-root 'vscode' user with sudo access. However, for Linux,
+# this user's GID/UID must match your local user UID/GID to avoid permission issues
+# with bind mounts. Update USER_UID / USER_GID if yours is not 1000. See
+# https://aka.ms/vscode-remote/containers/non-root-user for details.
+ARG USERNAME=vscode
+ARG USER_UID=1000
+ARG USER_GID=$USER_UID
+# Configure apt and install packages
+RUN apt-get update \
+    && apt-get -y install --no-install-recommends apt-utils dialog 2>&1 \
+    #
+    # Install vim, git, process tools, lsb-release
+    && apt-get install -y \
+        git \
+    #
+    # Install ruby
+    && apt-get install -y \
+        make \
+		build-essential \
+		ruby \
+        ruby-dev \
+    #
+    # Install jekyll
+    && gem install \
+        bundler \
+        jekyll \
+    #
+    # Create a non-root user to use if preferred - see https://aka.ms/vscode-remote/containers/non-root-user.
+    && groupadd --gid $USER_GID $USERNAME \
+    && useradd -s /bin/bash --uid $USER_UID --gid $USER_GID -m $USERNAME \
+    # [Optional] Add sudo support for the non-root user
+    && apt-get install -y sudo \
+    && echo $USERNAME ALL=\(root\) NOPASSWD:ALL > /etc/sudoers.d/$USERNAME\
+    && chmod 0440 /etc/sudoers.d/$USERNAME \
+    #
+    # Clean up
+    && apt-get autoremove -y \
+    && apt-get clean -y \
+    && rm -rf /var/lib/apt/lists/*
+# Switch back to dialog for any ad-hoc use of apt-get
+ENV DEBIAN_FRONTEND=dialog

.devcontainer/devcontainer.json

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+// For format details, see https://aka.ms/devcontainer.json. For config options, see the
+// README at: https://github.com/devcontainers/templates/tree/main/src/jekyll
+{
+	"name": "Jekyll",
+	// Or use a Dockerfile or Docker Compose file. More info: https://containers.dev/guide/dockerfile
+	"image": "mcr.microsoft.com/devcontainers/jekyll:2-bookworm"
+
+	// or use Dockerfile?
+	// comment out image and uncomment build
+	//{
+	//	"build": {
+	//		// Path is relative to the devcontainer.json file.
+	//		"dockerfile": "Dockerfile"
+	//	}
+	//}
+
+	// Features to add to the dev container. More info: https://containers.dev/features.
+	// "features": {},
+
+	// Use 'forwardPorts' to make a list of ports inside the container available locally.
+	// "forwardPorts": [],
+
+	// Uncomment the next line to run commands after the container is created.
+	// "postCreateCommand": "jekyll --version"
+
+	// Configure tool-specific properties.
+	// "customizations": {},
+
+	// Uncomment to connect as root instead. More info: https://aka.ms/dev-containers-non-root.
+	// "remoteUser": "root"
+}

.vscode/settings.json

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+{
+    "files.exclude": {
+        "journals/*": true
+    }
+}

_config-local.yml

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+remote_theme: pages-themes/minimal@v0.2.0
+plugins:
+# - jekyll-remote-theme # add this line to the plugins list if you already have one 
+  - jekyll-redirect-from
+title: The HDF Group
+description: Ensuring long-term access and usability of HDF data and supporting users of HDF technologies
+
+logo: /assets/img/logo.png
+show_downloads: false
+site.github.is_user_page: false
+google_analytics: G-XQWF3YLCRQ 
+# theme: jekyll-theme-minimal # uses remote theme above
+
+defaults:
+  - scope:
+      path: ""
+    values:
+      layout: default
+
+url: localhost:4000
+baseurl: ""
+
+url_docs: "https:docs.hdfgroup.org"