Hi! I'm Isaac Flath, a Tech Generalist passionate about creating beautiful, functional, useful things. While this often means AI it often means Web App Development, Dev Ops, System Administration, and other things. AI is only a component (sometimes a relatively small one) of a successful AI application.
Isaac's Tech Notes
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Join me for weekly insights on tech, coding, and AI. I share practical tips and learnings from building real-world applications, delivered straight to your inbox. Ad: I am an independent AI consultant. To get my help or get more information go here: https://bit.ly/isaac-consults Building custom annotation tools for error analysis with FastHTMLPublished on May 27, 2025 My talk in the AI Evals course that shows you how to use a new python web framework called FastHTML to build custom annotation tools for error analysis quickly.
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Isaac Flath
Hi! I'm Isaac Flath, a Tech Generalist passionate about creating beautiful, functional, useful things. While this often means AI it often means Web App Development, Dev Ops, System Administration, and other things. AI is only a component (sometimes a relatively small one) of a successful AI application.
Hey this is Isaac, This week has been about closing loops. I'm releasing the DevRelifier (product for helping share and promote tech stuff), which means dealing with the unsexy parts of software development: tax setup and final testing. It’s less about coding creative features and more about ensuring the business actually works without breaking the law or the user experience. If you want to try the product, reply to this email for more info and free credits. The Build: The Unsexy Last Mile...
Hey this is Isaac, I met with some dear friends, Danny and Audrey Roy Greenfeld, in Baltimore for a mini-sprint on the air web-dev framework. Walking around a science museum while brainstorming and cafe-hopping while hacking together was a blast. During the sprint I created a new testing example (unit, integration, and end-to-end playwright tests) and began extracting features from private codebases into small, public libraries. I also learned that a late evening espresso martini is not the...
Hey this is Isaac, This week I was fixing some basic and classic async problems: a "processing" pill that never updated to "complete." Blech. The goal is to prevent long-running tasks from freezing the user interface. If something takes a second, it’s fine to expect the user to stay on the page until it completes. But if it takes 5 minutes? Users will want to be able to do other things while it’s processing. So we have background tasks that run independently of the UI the user sees. But the...