Peter Kellner
@pkellner.bsky.social
Pluralsight author focusing on React. Silicon Valley Code Camp organizer.
Learnings From Coding with AI (Claude Code): It's hard to believe there isn't some thinking going on here. Claude admits its fallacies.
October 7, 2025 at 12:54 PM
Learnings From Coding with AI (Claude Code): It's hard to believe there isn't some thinking going on here. Claude admits its fallacies.
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.
October 2, 2025 at 10:55 AM
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.
From my upcoming course…
July 4, 2025 at 12:32 PM
From my upcoming course…
Learning From Coding With AI (Claude): It's easy to get lazy and watch Claude generate engineering debt. I keep adding new rules, but I'm up to over 37 rules now and that seems to be more than it can follow. It violates them all the time compared to when I had fewer.
May 15, 2025 at 2:11 PM
Learning From Coding With AI (Claude): It's easy to get lazy and watch Claude generate engineering debt. I keep adding new rules, but I'm up to over 37 rules now and that seems to be more than it can follow. It violates them all the time compared to when I had fewer.
Learning From Coding With AI (Claude): Always double check that AI doesn't throw things away.
me: what did you do with all the nice compare stuff
claude: You're right, I inadvertently removed the nice comparison view functionality...
me: what did you do with all the nice compare stuff
claude: You're right, I inadvertently removed the nice comparison view functionality...
May 12, 2025 at 11:58 PM
Learning From Coding With AI (Claude): Always double check that AI doesn't throw things away.
me: what did you do with all the nice compare stuff
claude: You're right, I inadvertently removed the nice comparison view functionality...
me: what did you do with all the nice compare stuff
claude: You're right, I inadvertently removed the nice comparison view functionality...
Learning From Coding With AI (Claude): What AI excels out is things like "create a react component that views JSON in a collapsible way only showing shorter content directly, but providing an expando icon for larger sections.
May 11, 2025 at 5:53 PM
Learning From Coding With AI (Claude): What AI excels out is things like "create a react component that views JSON in a collapsible way only showing shorter content directly, but providing an expando icon for larger sections.
Just learned this JavaScript console.log trick from Claude. No need to mention name twice! (go DRY)
April 17, 2025 at 4:19 PM
Just learned this JavaScript console.log trick from Claude. No need to mention name twice! (go DRY)
I volunteer at the local high school teaching math and this is what I park next to today. Should I be scared?
February 25, 2025 at 5:50 PM
I volunteer at the local high school teaching math and this is what I park next to today. Should I be scared?
Volunteering in math class at the local high school.
February 19, 2025 at 3:30 PM
Volunteering in math class at the local high school.
Have you spoke or attended a Silicon Valley Code Camp? If so, update your profile and automatically be added to the bluesky lists! Learn how: peterkellner.net/2025/02/17/b...
February 18, 2025 at 2:59 PM
Have you spoke or attended a Silicon Valley Code Camp? If so, update your profile and automatically be added to the bluesky lists! Learn how: peterkellner.net/2025/02/17/b...
Seriously @microsoft.com and @office365.bsky.social My first experience with PowerPoint and copilot gave me this answer. Then, I was curious about the billing side of this since I'm told the price went up to include this. Copilot charged me a credit to tell me it can't help.
January 29, 2025 at 3:44 PM
Seriously @microsoft.com and @office365.bsky.social My first experience with PowerPoint and copilot gave me this answer. Then, I was curious about the billing side of this since I'm told the price went up to include this. Copilot charged me a credit to tell me it can't help.
Hard not to love San Francisco in the evening.
January 5, 2025 at 3:38 AM
Hard not to love San Francisco in the evening.
I wonder if ChatGPT makes ridiculous comments like this because it finds it in a significant amount of code on the Internet? #OpenAI @chatgpt.bsky.social
December 13, 2024 at 12:29 AM
I wonder if ChatGPT makes ridiculous comments like this because it finds it in a significant amount of code on the Internet? #OpenAI @chatgpt.bsky.social
OK, this is a little scary. My personal website, peterkellner.net, is hosted on GitHub pages and I got this this morning.
December 3, 2024 at 12:45 AM
OK, this is a little scary. My personal website, peterkellner.net, is hosted on GitHub pages and I got this this morning.
This is what ChatGPT thinks.
November 26, 2024 at 4:51 PM
This is what ChatGPT thinks.
I guess I should have known this, but I didn’t. I thought the two arrays would be different.
November 26, 2024 at 1:53 PM
I guess I should have known this, but I didn’t. I thought the two arrays would be different.
Crazy happy with new 6K Dell monitor. It's iPhone quality screen but on 32" of screen! The slight jaggies on my old 32" 4k monitor always bugged me a little.
November 23, 2024 at 12:54 PM
Crazy happy with new 6K Dell monitor. It's iPhone quality screen but on 32" of screen! The slight jaggies on my old 32" 4k monitor always bugged me a little.
Has anyone seen my “C”key?
November 5, 2024 at 1:04 AM
Has anyone seen my “C”key?
@webuiltthiscity.bsky.social great day biking around the towers.
August 20, 2024 at 1:07 PM
@webuiltthiscity.bsky.social great day biking around the towers.
Loving living and biking in Borrego Springs.
November 14, 2023 at 4:49 AM
Loving living and biking in Borrego Springs.
Great day for a bike ride and a burger in the desert
September 20, 2023 at 8:08 PM
Great day for a bike ride and a burger in the desert