Setup Codespaces devcontainer

.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/alpine
+{
+  "name": "Alpine",
+  // Or use a Dockerfile or Docker Compose file. More info: https://containers.dev/guide/dockerfile
+  "image": "mcr.microsoft.com/devcontainers/base:alpine-3.19",
+  "features": {
+    "ghcr.io/devcontainers-contrib/features/gleam:1": {},
+    "ghcr.io/cirolosapio/devcontainers-features/alpine-node:0": {},
+    "ghcr.io/devcontainers-contrib/features/http-server:1": {}
+  },
+
+  // Use 'forwardPorts' to make a list of ports inside the container available locally.
+  // "forwardPorts": [],
+
+  // Use 'postCreateCommand' to run commands after the container is created.
+  // "postCreateCommand": ". bin/download-compiler",
+
+  // Configure tool-specific properties.
+  "customizations": {
+    "vscode": {
+      "extensions": [
+        "gleam.gleam"
+      ]
+    },
+    "codespaces": {
+      "openFiles": [
+        "README.md"
+      ]
+    }
+  }
+
+  // Uncomment to connect as root instead. More info: https://aka.ms/dev-containers-non-root.
+  // "remoteUser": "root"
+}