I love Val.town for building little experiments and getting them hosted quicky. The fact that you can instantly have a URL to run code is incredible.
I use townie (their agent - https://townie.val.run) a lot to knock out ideas quickly. Give it a prompt and some $ and you have an app on that url in minutes.
When I use townie I always deploy to production (you really don't have to, they have branches) because I like to live on the edge. A recent debugging session I had with the tool had it trawling through the live logs and the live database to identify how to fix the issue (it worked too!) and it got me thinking a lot about what if something like townie was built into your deployed app, not for letting users extend the functionality of your site (that would be neat), but to fix issues as soon as they are identified.
It seems like there is an opportunity for RUM and observability to be combined with an agent that reacts to changes or issues and just starts to work on a solution.
I'm sure this is already being worked on, but I really liked the idea of doing what I was doing with Townie and just deploying it... (Yes.. yes, I know this is a terrible idea. I can imagine now crafting an error with a prompt injection in)
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