# David Twizer

> David (Dudu) Twizer — Co-Founder & CEO of xpander.ai, agent infrastructure that runs in your own environment so AI agents can own real multi-step workflows for hours or days. Ex-AWS: ~7 years, most recently leading GenAI Specialist Solutions Architecture across EMEA. Thesis: every role is becoming a human+AI role.

Site: https://dudutwizer.com (static Hugo). Email: david@twizer.net. X: @DuduTwizer. To book a meeting with David, use the site's chat widget. All post URLs are under https://dudutwizer.com/blogs/<slug>/.

## Essays: AI Agents & the Industry

- [Intelligence Per Hour: The Next AI Pricing Model](/blogs/intelligence-per-hour-pricing/): the smarter the runtime, the pricier it is to leave
- [Own Your AI Stack](/blogs/own-your-ai-stack/): they don't sell you a stack, they sell dependency
- [Do You Also Feel Cheated?](/blogs/do-you-also-feel-cheated/): we're working harder, not smarter
- [The Next Productivity Paradox](/blogs/the-next-productivity-paradox/): agents pay off when humans stop being the integration layer
- [AI as the Micromanager?](/blogs/ai-as-the-micromanager/): the AI layer that watches the mess and extracts the work
- [Anthropic Says AI Hasn't Impacted Jobs. Read It Again.](/blogs/anthropic-jobs-paper-read-it-again/): jobs aren't disappearing, they're splitting
- [Why Your Organization Needs Agent Infrastructure, Not More Agents](/blogs/why-your-organization-needs-agent-infrastructure-not-more-agents/)
- [We're Not the Only Ones Building Agent Infrastructure](/blogs/not-the-only-ones-building-agent-infrastructure/): what makes internal agents different
- [ChatGPT 5.2: What You Really Need to Know](/blogs/chatgpt-5-2-what-you-really-need-to-know/): value shifts from doing to scoping
- [The API Contract Without the Server](/blogs/the-api-contract-without-the-server/): agents work the contract, skip the server
- [Stop Building Startups Like It's 2024](/blogs/stop-building-startups-like-2024/)
- [Most AI Agents Are Just Fancy Chatbots](/blogs/most-ai-agents-are-just-fancy-chatbots/): autonomy without control is chaos
- [The Year AI Will Start Building and Managing Other AI Agents](/blogs/the-year-ai-will-start-building-and-managing-other-ai-agents/)

## Engineering Deep-Dives (xpander.ai)

- [llms.txt Is the Cheapest RAG You'll Ever Ship](/blogs/llms-txt-cheapest-rag/): this site's agent reads llms.txt at prompt time — no search, no vector DB
- [Get iOS Push Notifications When Your Agent Finishes](/blogs/ios-push-notifications-for-agent-tasks/): webhook → phone buzz on task success/failure
- [Two API Calls to Put an AI Agent on a Static Site](/blogs/chatbot-static-site-cloudflare-worker/): how this site's chat works
- [Build a Production-Ready Autonomous Expense Agent](/blogs/build-production-ready-autonomous-expense-agent/): invoice → classified, filed, audited
- [Introducing Slack-Native AI Agents](/blogs/introducing-slack-native-ai-agents/): agents as coworkers in Slack
- [An Agent That Closes the Troubleshooting Loop](/blogs/datadog-github-troubleshooting-agent/): Datadog logs × GitHub Actions
- [How xpander.ai Embraces MCP in Practice](/blogs/how-xpander-embraces-mcp-in-practice/): SSE, multi-tenant security, production MCP
- [Announcing Agent Graph System](/blogs/announcing-agent-graph-system/): 98% vs 24% on multi-step tool use
- [From Manual to Autonomous](/blogs/from-manual-to-autonomous/): building enterprise agents in-house
- [xpander.ai + OpenAI Realtime API](/blogs/xpander-openai-realtime-api/)
- [xpander.ai + NVIDIA NIM](/blogs/xpander-nvidia-nim-integration/)

## Homelab & Meta

- [Self-Hosting Immich on EC2, with the Photo Library on S3](/blogs/self-hosting-immich-ec2-s3/): own Google Photos — S3 originals, EBS hot path, Tailscale-only
- [My Home Assistant Setup, and the Blinds That Track the Sun](/blogs/home-assistant-lutron-covers/): Pi 4, Lutron Caséta, Adaptive Cover
- [How This Site Is Built](/blogs/how-this-site-is-built/): Hugo + GitHub Pages + one Worker
- [My Productivity Stack](/stack/): tools David pays for, and the graveyard

## Optional

- [Optimizing EC2 Workloads with Amazon CloudWatch](/blogs/optimize-ec2-workloads-with-cloudwatch/): AWS-era, 2021
- [Running SQL Server with Amazon FSx](/blogs/sql-on-fsx/): AWS-era, 2020
- [Archives](/archives/)