iiinova — where your digital self keeps evolving

Peter Kellner @pkellner.bsky.social · 25/05/2026

@karaswisher.bsky.social @profgalloway.com @pivotpod.bsky.social I can’t believe that you said the Supreme Court stays away from interfering with state supreme courts. Bush v Gore? I can’t think of a more consequential override. How is this different?

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Peter Kellner @pkellner.bsky.social · 21/02/2026

I often check to see what’s new on the React blog, and it would be nice to see some positive news instead of always seeing this. react.dev/blog/2025/12.... @react.dev

react.dev

Denial of Service and Source Code Exposure in React Server Components – React

The library for web and native user interfaces

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Peter Kellner @pkellner.bsky.social · 18/01/2026

Well, that was a long time ago. I’m assuming the source is still where it’s always been which is in the download tab at Pluralsight.

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Peter Kellner @pkellner.bsky.social · 31/12/2025

Updating passwords to mysql use to be a hassle until AI helped writing all those crazy scripts. best practices is one user/password per catalog. That's a lot of users and passwords! peterkellner.net/2025/12/31/a...

peterkellner.net

Using AI to Create Secure MySQL Password Rotation Scripts (Without Exposing Secrets) | Peter Kellner's Blog

How to leverage AI assistants to build password management scripts while keeping your actual credentials completely private.

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Peter Kellner @pkellner.bsky.social · 30/11/2025

you can still teach math! I started volunteering in my local highschool Math III course. Then, ended up taking on a course teaching 5 kids HTML, CSS and JS (we build wack-a-mole). NO! the mole goes IN the hole!!! (most fun part of day)

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Peter Kellner @pkellner.bsky.social · 22/10/2025

The membership process sounds a little like fight club.

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Peter Kellner @pkellner.bsky.social · 09/10/2025

Learnings From Coding with AI (Claude Code): This may be my last in this series (if anyone is listening). At ReactConf, I learned a lot (including from @leerob.com) and have switched From CC to Cursor. So far, the honey moon is going great! I need a new name "Learnings From ??:" Suggestions?

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Peter Kellner @pkellner.bsky.social · 09/10/2025

Nice! Great follow-up. I loved (in a sic kind of way) watching you struggle with simple things. Makes me feel like you are one of us.

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Peter Kellner @pkellner.bsky.social · 08/10/2025

They absolutely should have let you finish, you were just about to deliver the punch line when the hook came out. Absolutely everyone in that audience would have happily stayed for another 5 minutes. That's why we all came! At lunch, several other told me that too.

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Peter Kellner @pkellner.bsky.social · 08/10/2025

Learnings From Coding with AI (Claude Code): I wish Claude Code was like a junior programmer in that when you teach it something, it remembers the technique for the next time. for me, it's like groundhog day, everyday.

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Peter Kellner @pkellner.bsky.social · 07/10/2025

Learnings From Coding with AI (Claude Code): It's hard to believe there isn't some thinking going on here. Claude admits its fallacies.

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Peter Kellner @pkellner.bsky.social · 02/10/2025

Only in New York, at JFK checking in, told the lady that my extra bike charge of $200 was nothing compared to the hotel for 450 last night. She said they should’ve bathed you for that much.

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Peter Kellner @pkellner.bsky.social · 28/09/2025

Learnings From Coding with AI (Claude Code): "Are you again adding useEffect when you should be calculating values form existing state, and understanding that state changes cause un-needed re-renders?". I'm so tired of saying this even though I have it clearly in my `claude.md` file.

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Peter Kellner @pkellner.bsky.social · 27/09/2025

Learnings From Coding with AI (Claude Code): When seeing context available at the bottom get low (like less then 5%), don't think about asking another question that might lead to "compacting...". Nothing ever comes out right for me after compacting. Do: /clear and restart conversation fresh.

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Peter Kellner @pkellner.bsky.social · 27/09/2025

Glad to see @tannerlinsley.com speaking! He's got a great real world perspective on the stuff he builds and adds a lot of value to our community.

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Peter Kellner @pkellner.bsky.social · 27/09/2025

Learnings From Coding with AI (Claude Code): I use to have more faith and even wanted a more headless experience with CC. Now, I've learned to watch it carefully and constantly type feedback as it does stuff. It apprecaites it :). CC: "now I understand the problem better, thanks for clarifying"

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Peter Kellner @pkellner.bsky.social · 24/09/2025

They are all staying very quiet

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Peter Kellner @pkellner.bsky.social · 24/09/2025

Learnings From Coding with AI (Claude Code): Not exactly a learning, but I wish Claude Code would learn from what I tell it. I makes the same mistakes over and over and over. Maybe @anthropic.com will someday, or someone else like @openai.com will.

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Peter Kellner @pkellner.bsky.social · 24/09/2025

Learnings From Coding with AI (Claude Code): "I see the issue! The isPaused prop only affects the DISPLAY - it doesn't actually stop the status checking". Always be extra extra clear when asking for updates. It just changed the button labels, not the functioning

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Peter Kellner @pkellner.bsky.social · 20/09/2025

That's a great suggestion! Thanks. It only recently occurred to me that all the "fixing" CC does before giving me the code is based on "it compiles". That kind of use to be a joke (and now the joke is on me)

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Peter Kellner @pkellner.bsky.social · 20/09/2025

Learnings From Coding with AI (Claude Code): Does it bother anyone else that CC iterates until it gets a successful compile and then declare it working? (that is, when node and typescript at least). I have to explicitly tell it to write tests which it often doesn't like to do.

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Peter Kellner @pkellner.bsky.social · 19/09/2025

I really want engagement to encourage discussion.

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Peter Kellner @pkellner.bsky.social · 19/09/2025

Yeah, good to know its not 100% me. I don't want to go to x, as I already go there too much. Any other suggestions where AI folks hang out?

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Peter Kellner @pkellner.bsky.social · 19/09/2025

Hey follow claude code travellers @anthropic.com, I've been posting "Learnings From Claude Code" for quite a while and not getting much/any traction. Any suggestions?

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Peter Kellner @pkellner.bsky.social · 19/09/2025

Learnings From Coding with AI (Claude Code): "The problem is in phase1-metadata-discovery.ts. Someone added a misguided "optimization" that blindly adds all child folder metadata paths". Guess who "someone" was

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Peter Kellner @pkellner.bsky.social · 18/09/2025

Learnings From Coding with AI (Claude Code): When I find a code problem, I make CC build a test to demonstrate the problem and the failure. Then I make it fix that test to work. Then iterate on this: " Hmm, my test isn't reproducing the exact bug."

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Peter Kellner @pkellner.bsky.social · 08/09/2025

Learnings From Coding with AI (Claude Code): Claude Code does not think like us. I find it often undoes what I asked it to do in a previous context if my next request touches that. It doesn't remember why it did, it just does again as if it were a robot (wait, it is a robot)

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Peter Kellner @pkellner.bsky.social · 04/09/2025

Great article. I’ve felt the same things many times but put a lot in the category, the better I know something, the less I like it. The problem is just hard. Next could go better and I wish that they would stop adding features without fully thinking through ramifications to us non Vercel people.

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Peter Kellner @pkellner.bsky.social · 16/08/2025

Me: Never ever ever have code that "adds a small delay". that is just really bad programming style, indicating the developer is an idiot and lazy which you are not. Claude Code: You're absolutely right. Let me fix this properly by removing that terrible delay.

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Peter Kellner @pkellner.bsky.social · 16/08/2025

Learnings From Coding with AI (Claude Code): To those who think serious architecture skills are not need to build apps with AI, read this planning doc I wrote for a refactor. It took an initial rough prompt of what I wanted, then about 20 refinements. gist.github.com/pkellner/06b...

gist.github.com

A plan I created in Claude Code to do a significant refactor

A plan I created in Claude Code to do a significant refactor - REFACTOR-HIERARCHY-JS.md

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Peter Kellner @pkellner.bsky.social · 15/08/2025

Learnings From Coding with AI (Claude Code): If you are using Claude Code (like me and paying $200/month), and you are not using context7, you are missing out on the lastest features in the packages you use (like React, Node and Next.js)

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Peter Kellner @pkellner.bsky.social · 31/07/2025

By the way, if you ever need any help or advice on nextjs, let me know. There are few things I know as well as that and it’s got pluses and minuses.

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Peter Kellner @pkellner.bsky.social · 30/07/2025

No. It wants to make the image proper size and better format. Adding nooptimized attribute stops it from redirecting local. I pass through query Params to cloudfront so my sizes are done on my origin server then cache is perfect size.

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Peter Kellner @pkellner.bsky.social · 30/07/2025

Who (besides me) did not know that with @nextjs code like this: import Image from 'next/image' export default function Page() { return ( <Image src="s3.amazonaws.com/my-bucket/x.png” width={500} height={500} /> ) } The image goes thru your own server?

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Peter Kellner @pkellner.bsky.social · 18/07/2025

Melanie Griffith in vail at a bagel store with her kids and an opair. She had big chin hair! Image blown.

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Peter Kellner @pkellner.bsky.social · 13/07/2025

Learnings From Coding with AI (Claude Code): CC can create complex architectures and still needs humans to help. I posted a long paragraph of good senior guidance, and it responded: "You're absolutely right! The current architecture is indeed convoluted. Your proposed solution is much cleaner:"

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Peter Kellner @pkellner.bsky.social · 09/07/2025

Learning From Coding With AI (Claude): OMG! started using Claude Code. OMG OMG OMG!!! I've paid the $200. I'd pay more. I can't believe how much this makes what I was doing with cutting and pasting feel like I was living in ancient times. Mind blown.

react.dev

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Peter Kellner @pkellner.bsky.social · 04/07/2025

Yeah. I realized after I posted this that that was kind of the point of your post. I do and also say what it use to be called and why it got renamed. It is darn useful for forms though.

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Peter Kellner @pkellner.bsky.social · 17/06/2025

The golden dome is just plain bat shit stupid and crazy.

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Peter Kellner @pkellner.bsky.social · 17/06/2025

My favorite saying: The more you get to know people, the more you like dogs.

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Peter Kellner @pkellner.bsky.social · 17/06/2025

Learning From Coding With AI (Claude): Todays learning is that for relatively new tech like React's useActionState, react.dev/reference/re..., even when you give claude the doc link, it still really screws up the implementation adding all kinds of crazy extra useState and useEffect calls.

react.dev

useActionState – React

The library for web and native user interfaces

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Peter Kellner @pkellner.bsky.social · 06/06/2025

@karaswisher.bsky.social and @profgalloway.com I was so sure you were going to continue today when you use the professional wrestling analogy, and point out this is all staged just like that. I was expecting Scott to say check who made money when the stop dropped.

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