Support GitHub Codespaces

.devcontainer/Dockerfile

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+FROM ubuntu:latest
+
+WORKDIR /home/
+
+COPY . .
+
+RUN bash ./setup.sh

.devcontainer/devcontainer.json

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+{
+    "name": "basm-rs",
+    "extensions": [
+        "ms-vsliveshare.vsliveshare",
+        "rust-lang.rust-analyzer",
+        "vadimcn.vscode-lldb"
+    ],
+    "dockerFile": "Dockerfile",
+    "settings": {
+        "editor.formatOnSave": true
+    },
+    "customizations": {
+        "codespaces": {
+            "openFiles": [
+                "src/solution.rs"
+            ]
+        }
+    }
+}

.devcontainer/setup.sh

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+#!/bin/bash
+apt-get -y update
+apt-get -y install curl git gnupg2 jq sudo vim build-essential openssl python3
+curl --proto '=https' --tlsv1.2 -sSf https://sh.rustup.rs | sh -s -- --default-toolchain nightly --default-host x86_64-unknown-linux-gnu -y
+sudo ln -s /home/codespace/.cargo/bin/cargo /bin/cargo