Open source tools and applications I've built to solve real problems in the AWS and developer community - production-ready, actively maintained, built on serverless architectures.

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Announcements Hub for AWS

Aggregates every AWS announcement with AI-powered search and real-time community discussion

✅ Live

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A static-first web app that collects and organizes all AWS "What's New" announcements into a fast, searchable interface. Centralizes announcements with community voting, comments, and an AI chat assistant - for AWS practitioners who want to track service launches and ask natural language questions about AWS history.

Sub-second loads via CloudFront-served, monthly-partitioned JSON (no DB reads on page load)

AI chat powered by Amazon Bedrock Nova - natural language queries over AWS announcement history

Community voting, awards, and AI-moderated comments with immediate S3 write-through

Automated hourly RSS sync via EventBridge + Lambda with AI-assisted categorization

S3-first architecture - DynamoDB reserved only for transactional metadata

ReactTypeScriptPythonAWS CDKS3CloudFrontLambdaDynamoDBBedrock NovaCognitoEventBridgeAPI GatewayAgentCoreStrands

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🗓️

Community Organizer Hub

Serverless platform for community organizers to manage events, speakers, and real-time engagement

✅ Live

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Multi-tenant, serverless event management platform built entirely on AWS. Enables community organizers to manage groups, events, speakers, sponsors, and venues from a single admin interface. Platform admins oversee all tenants; public-facing features like live raffles, Q&A, polls, and feedback require no login.

Multi-tenant RBAC with PLATFORM_ADMIN and ORGANIZER roles, fully scoped per group

Real-time raffle, Q&A, and poll features via AppSync WebSocket subscriptions

Public event pages, feedback forms, and raffle participation - no authentication required

Smart deployment pipeline using hash-based change detection to skip unchanged components

Fully serverless infrastructure provisioned with AWS CDK across 5 stacks

React 18TypeScriptViteTailwind CSSAWS CDKLambdaAPI GatewayDynamoDBCognitoAppSyncS3CloudFront

Open App Feedback & Issues

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PlayingPadel

Track your padel matches, analyze your game, and improve match by match.

✅ Live

A free PWA (also on Android via Google Play) where padel players track their matches and stats - no signup, no ads, works offline. Solves the gap between expensive club platforms and having nothing: a personal, private tool ready in under a minute. Runs on a serverless AWS backend at a very low cost.

Track a match in seconds - only the score is required, everything else is optional

7-section advanced analytics: trends, rivals, partners, sets, predictions and more (Pro)

Points & levels system (10 levels, New Player → Padel Master) with 23 unlockable achievements (Pro)

Offline-first PWA - works on court with no signal; also available on Android via Google Play

Self-evaluation per match: technique, tactics, mental, physical - with evolution charts (Pro)

Vanilla JSTailwindCSSPostCSSJestPlaywrightAWS LambdaAPI GatewayDynamoDBCloudFrontS3AWS SAMReact 19ViteAndroid TWA

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💰

AWS FinOps Toolkit

Automates AWS cost visibility, tag governance, and optimization reporting for cloud teams

✅ Active

Open-source serverless toolkit that transforms AWS cost data into actionable operations. Bridges the gap between raw AWS billing services and real financial governance - delivering automated reports, tag compliance checks, and optimization insights directly to your inbox. Built for engineers who want FinOps discipline without the $100–200+/month cost of QuickSight.

Automated cost analysis, compliance, and optimization reports via email (SES) and S3

Detects tag typos and validates required tags across all regions with a Tag Inventory report

Surfaces consolidated AWS Optimizer recommendations prioritized for action

Runs on Lambda free tier - lightweight alternative to Cost Intelligence Dashboards

Single YAML config controls budgets, schedules, recipients, and tag policies

Node.js 22AWS LambdaAWS SAMS3SESEventBridgeCost Explorer APIAWS ConfigAWS BudgetsCompute Optimizer

GitHub Blog Post

Related articles

FinOps on AWS: from theory to practice (with native services, my serverless tool, and a certification as an excuse)

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Mobile Image Generator

Wrap app screenshots in phone mockups and export as WebP, ready for app stores

✅ Active

Before

After

CLI tool that wraps app screenshots in a realistic phone mockup and converts them to WebP - ready for app store listings and marketing pages. Includes an interactive browser UI as a no-CLI alternative.

Before/after: raw screenshot → polished phone mockup

Batch WebP conversion with optional resizing

Configurable background color and caption text

Browser UI alternative for non-CLI users

Node.jsPuppeteerHTML/CSScwebp

GitHub