devcontainer setup

.devcontainer/Dockerfile

@@ -0,0 +1,12 @@
+FROM node:18
+
+# Install basic development tools
+RUN apt update && apt install -y less man-db sudo
+
+# Ensure default `node` user has access to `sudo`
+ARG USERNAME=node
+RUN echo $USERNAME ALL=\(root\) NOPASSWD:ALL > /etc/sudoers.d/$USERNAME \
+    && chmod 0440 /etc/sudoers.d/$USERNAME
+
+# Set `DEVCONTAINER` environment variable to help with orientation
+ENV DEVCONTAINER=true

.devcontainer/devcontainer.json

@@ -0,0 +1,15 @@
+// See https://containers.dev/implementors/json_reference/ for configuration reference
+{
+	"name": "SHA-1 In Browser",
+	"build": {
+		"dockerfile": "Dockerfile"
+	},
+"remoteUser": "node",
+"customizations": {
+	"vscode": {
+		"extensions": [
+			"ritwickdey.LiveServer"
+		]
+	}
+}
+}