diff --git a/.devcontainer/devcontainer.json b/.devcontainer/devcontainer.json
index 9e81e28..70232b1 100644
--- a/.devcontainer/devcontainer.json
+++ b/.devcontainer/devcontainer.json
@@ -1,29 +1,29 @@
 {
-	"name": "Deno",
- 	"build": {
-		"dockerfile": "Dockerfile"
-	},
+  "name": "Deno",
+  "build": {
+    "dockerfile": "Dockerfile"
+  },
 
-	// Configure tool-specific properties.
-	"customizations": {
-		// Configure properties specific to VS Code.
-		"vscode": {
-			// Set *default* container specific settings.json values on container create.
-			"settings": { 
-				// Enables the project as a Deno project
-				"deno.enable": true,
-				// Enables Deno linting for the project
-				"deno.lint": true,
-				// Sets Deno as the default formatter for the project
-				"editor.defaultFormatter": "denoland.vscode-deno"
-			},
-			
-			// Add the IDs of extensions you want installed when the container is created.
-			"extensions": [
-				"denoland.vscode-deno"
-			]
-		}
-	},
+  // Configure tool-specific properties.
+  "customizations": {
+    // Configure properties specific to VS Code.
+    "vscode": {
+      // Set *default* container specific settings.json values on container create.
+      "settings": {
+        // Enables the project as a Deno project
+        "deno.enable": true,
+        // Enables Deno linting for the project
+        "deno.lint": true,
+        // Sets Deno as the default formatter for the project
+        "editor.defaultFormatter": "denoland.vscode-deno"
+      },
 
-	"remoteUser": "vscode"
-}
\ No newline at end of file
+      // Add the IDs of extensions you want installed when the container is created.
+      "extensions": [
+        "denoland.vscode-deno"
+      ]
+    }
+  },
+
+  "remoteUser": "vscode"
+}
diff --git a/.dockerignore b/.dockerignore
new file mode 100644
index 0000000..c40c05c
--- /dev/null
+++ b/.dockerignore
@@ -0,0 +1,3 @@
+cache/
+export/
+*.json
diff --git a/.gitattributes b/.gitattributes
new file mode 100644
index 0000000..6313b56
--- /dev/null
+++ b/.gitattributes
@@ -0,0 +1 @@
+* text=auto eol=lf
diff --git a/.github/workflows/ci.yaml b/.github/workflows/ci.yaml
new file mode 100644
index 0000000..11c467e
--- /dev/null
+++ b/.github/workflows/ci.yaml
@@ -0,0 +1,30 @@
+name: Build
+on: [push, pull_request]
+jobs:
+  build:
+    runs-on: ${{ matrix.os }}
+    strategy:
+      matrix:
+        os: [ubuntu-latest, windows-latest, macos-latest]
+        deno: [1.x, "1.21.x", canary]
+    steps:
+      - uses: actions/checkout@v2
+      - uses: denoland/setup-deno@v1
+        with:
+          deno-version: ${{ matrix.deno }}
+      - name: Check fmt
+        run: deno fmt --check
+      - name: Run lint
+        run: deno lint
+      - name: All entries
+        uses: tj-actions/glob@v16
+        id: entries
+        with:
+          files: |
+            s3si.ts
+            initRank.ts
+            ./scripts/*.ts
+      - name: Check entries
+        run: deno check ${{ steps.entries.outputs.paths }}
+      - name: Run tests
+        run: deno test
diff --git a/Dockerfile b/Dockerfile
new file mode 100644
index 0000000..661790a
--- /dev/null
+++ b/Dockerfile
@@ -0,0 +1,15 @@
+FROM denoland/deno:1.26.2
+
+WORKDIR /app
+
+# Cache the dependencies as a layer (the following two steps are re-run only when deps.ts is modified).
+# Ideally cache deps.ts will download and compile _all_ external files used in main.ts.
+COPY deps.ts .
+RUN deno cache deps.ts
+
+# These steps will be re-run upon each file change in your working directory:
+ADD . .
+# Compile the main app so that it doesn't need to be compiled each startup/entry.
+RUN deno cache s3si.ts
+
+CMD ["run", "-A", "s3si.ts", "-n"]
\ No newline at end of file