diff --git a/.dockerignore b/.dockerignore
new file mode 100644
index 0000000..19272ee
--- /dev/null
+++ b/.dockerignore
@@ -0,0 +1,107 @@
+# Logs
+logs
+*.log
+npm-debug.log*
+yarn-debug.log*
+yarn-error.log*
+lerna-debug.log*
+
+# Diagnostic reports (https://nodejs.org/api/report.html)
+report.[0-9]*.[0-9]*.[0-9]*.[0-9]*.json
+
+# Runtime data
+pids
+*.pid
+*.seed
+*.pid.lock
+
+# Directory for instrumented libs generated by jscoverage/JSCover
+lib-cov
+
+# Coverage directory used by tools like istanbul
+coverage
+*.lcov
+
+# nyc test coverage
+.nyc_output
+
+# Grunt intermediate storage (https://gruntjs.com/creating-plugins#storing-task-files)
+.grunt
+
+# Bower dependency directory (https://bower.io/)
+bower_components
+
+# node-waf configuration
+.lock-wscript
+
+# Compiled binary addons (https://nodejs.org/api/addons.html)
+build/Release
+
+# Dependency directories
+node_modules/
+jspm_packages/
+
+# TypeScript v1 declaration files
+typings/
+
+# TypeScript cache
+*.tsbuildinfo
+
+# Optional npm cache directory
+.npm
+
+# Optional eslint cache
+.eslintcache
+
+# Microbundle cache
+.rpt2_cache/
+.rts2_cache_cjs/
+.rts2_cache_es/
+.rts2_cache_umd/
+
+# Optional REPL history
+.node_repl_history
+
+# Output of 'npm pack'
+*.tgz
+
+# Yarn Integrity file
+.yarn-integrity
+
+# dotenv environment variables file
+.env
+.env.test
+
+# parcel-bundler cache (https://parceljs.org/)
+.cache
+
+# Next.js build output
+.next
+
+# Nuxt.js build / generate output
+.nuxt
+dist
+
+# Gatsby files
+.cache/
+# Comment in the public line in if your project uses Gatsby and *not* Next.js
+# https://nextjs.org/blog/next-9-1#public-directory-support
+# public
+
+# vuepress build output
+.vuepress/dist
+
+# Serverless directories
+.serverless/
+
+# FuseBox cache
+.fusebox/
+
+# DynamoDB Local files
+.dynamodb/
+
+# TernJS port file
+.tern-port
+
+# dsStore
+.DS_Store
\ No newline at end of file
diff --git a/.github/workflows/fly-deploy.yml b/.github/workflows/fly-deploy.yml
new file mode 100644
index 0000000..f3cbe5d
--- /dev/null
+++ b/.github/workflows/fly-deploy.yml
@@ -0,0 +1,23 @@
+name: Deploy to Fly
+on: [push]
+jobs:
+  deploy:
+    name: Deploy proxy
+    runs-on: ubuntu-latest
+    environment: production
+    steps:
+      # Checkout to repo
+      - uses: actions/checkout@v4
+      # Initialize fly.io CLI
+      - uses: superfly/flyctl-actions/setup-flyctl@master
+      - name: Use Node.js
+        uses: actions/setup-node@v4
+        with:
+          node-version: '20.x'
+      - run: npm install
+      - run: npm run build
+      - run: npm run test
+      # Deploy to fly.io with a remote runner
+      - run: flyctl deploy --remote-only
+        env:
+          FLY_API_TOKEN: ${{ secrets.FLY_API_TOKEN }}
diff --git a/Dockerfile b/Dockerfile
new file mode 100644
index 0000000..1a55692
--- /dev/null
+++ b/Dockerfile
@@ -0,0 +1,45 @@
+# syntax = docker/dockerfile:1
+
+# Adjust NODE_VERSION as desired
+ARG NODE_VERSION=20.9.0
+FROM node:${NODE_VERSION}-slim as base
+
+LABEL fly_launch_runtime="Node.js"
+
+# Node.js app lives here
+WORKDIR /app
+
+# Set production environment
+ENV NODE_ENV="production"
+
+
+# Throw-away build stage to reduce size of final image
+FROM base as build
+
+# Install packages needed to build node modules
+RUN apt-get update -qq && \
+    apt-get install --no-install-recommends -y build-essential node-gyp pkg-config python-is-python3
+
+# Install node modules
+COPY --link package-lock.json package.json ./
+RUN npm ci --include=dev
+
+# Copy application code
+COPY --link . .
+
+# Build application
+RUN npm run build
+
+# Remove development dependencies
+RUN npm prune --omit=dev
+
+
+# Final stage for app image
+FROM base
+
+# Copy built application
+COPY --from=build /app /app
+
+# Start the server by default, this can be overwritten at runtime
+EXPOSE 3000
+CMD [ "npm", "run", "start" ]
diff --git a/fly.toml b/fly.toml
new file mode 100644
index 0000000..906d04e
--- /dev/null
+++ b/fly.toml
@@ -0,0 +1,23 @@
+# fly.toml app configuration file generated for simple-math-api-exercise on 2024-03-11T23:13:09Z
+#
+# See https://fly.io/docs/reference/configuration/ for information about how to use this file.
+#
+
+app = 'simple-math-api-exercise'
+primary_region = 'mad'
+
+[build]
+
+[http_service]
+  internal_port = 3000
+  force_https = true
+  auto_stop_machines = true
+  auto_start_machines = true
+  min_machines_running = 0
+  processes = ['app']
+
+[[vm]]
+  size = 'shared-cpu-1x'
+
+[env]
+  PORT = 3000
diff --git a/index.ts b/index.ts
index b735177..7820dcb 100644
--- a/index.ts
+++ b/index.ts
@@ -17,7 +17,7 @@ using express.js
 const app: Express = express();
 
 // This is how you setup a simple GET handler
-app.get('/', (req: Request, res: Response) => {
+app.get('/', (_req: Request, res: Response) => {
 	// With express, we can respond with JSON directly without having to
 	// `JSON.stringify()` response. You might want to do this if you're building
 	// an API
@@ -56,16 +56,16 @@ app.get('/div/:a/:b', (req: Request, res: Response) => {
 });
 
 // Handler for the subtraction route
-app.get('/subtract/:a/:b', (req: Request, res: Response) => {
-	const { a, b } = { a: Number(req.params.a), b: Number(req.params.b) };
-	const subtraction = subtractTwoNumbers(Number(a), Number(b));
-	res.json({
-		message: 'Subtract Operation',
-		operation: 'success',
-		a,
-		b,
-		subtraction
-	});
-});
+// app.get('/subtract/:a/:b', (req: Request, res: Response) => {
+// 	const { a, b } = { a: Number(req.params.a), b: Number(req.params.b) };
+// 	const subtraction = subtractTwoNumbers(Number(a), Number(b));
+// 	res.json({
+// 		message: 'Subtract Operation',
+// 		operation: 'success',
+// 		a,
+// 		b,
+// 		subtraction
+// 	});
+// });
 
 export { app };