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Advanced Geekery with David Gewirtz

Why VA on UPSs lie, how the Mac could help Apple win AI, and a $3200 iPhone My vibe debugging hangover, ways I use ChatGPT Work, how I code Apple apps Is that old phone worth anything? Getting started with ChatGPT Work Get a no-cost AI pro certificate and Google’s AI can see your business data Claude Code vs. Codex in-depth My favorite voice dictation tool, a legendary free course taught by AI pioneers, and I get a new toy Did my zombies break Google Earth? Also, my Bambu Lab A2L first impressions video I cloned the Codex keyboard, how to pick Claude tools, coffee is healthy OpenAI gutted its desktop app, new ChatGPT Work, 1Password in Claude Hands-on Claude Cowork, GPT-5.6, I review the Kobra X, and I say no to Fable 5 Gmail giveth and taketh away, Claude Tag, and another preview of my app My app sneak preview, more on Fable, and an AI search engine Inside the wacky Claude Fable saga, ChatGPT's problematic memory, and my food planner I test Claude's honesty, using AI to hack PDF pages, Microsoft's Work IQ I turned to AI to fix my glasses prescription, Claude gets more honest, and a new video Google’s creepy video clones, OpenAI’s un-strippable watermarks, and why traditional app security is dead. Stop signing unfair contracts, AI analyzes video, free Anthropic training courses How we test AI, protect yourself from the Canvas breach, and agentic coding myths Photoshop's AI rotate tool, ChatGPT's Images 2.0 slams Nano Banana and redesigns my UI I test ChatGPT Images 2.0 and GPT-5.5, Google goes to cyberwar, and more AI releases AI website builders don't suck anymore, a Codex desktop update, and a new David video An AI Manhattan Project, my vibe coding setup, and a useful Harbor Freight hack Gmail AI does something cool, a new free model from Google, and are IDEs obsolete? Use Gemini for pro headshots, new features from Codex and Claude, and I'm on Disney+ Manage your browser tabs with AI, vibe coding a YouTube fix, 1Password does agents, and GPT-5.4 mini I review ChatGPT 5.4 Thinking, ChatGPT Voice Mode tricks, Microsoft adds agent controls AI and cybersecurity, how I broke Gemini, GPT-5.4 vs humans Vibe coding with engineering discipline, cleaning the shop, and some scam warnings Choose the right chatbot, always-do instructions for my AI, Google exec on the future of Android Major fail trying free vibe coding, best ChatGPT settings, a 15x faster coding AI
My plastic R2-D2, how to tame your OpenAI budget, I fough...
Advanced Geekery with David Gewirtz · 2026-07-06 · via Advanced Geekery with David Gewirtz

I’m David Gewirtz. Welcome to this week’s Advanced Geekery newsletter. It’s been an exciting week. Let’s dive in.

Advanced Geekery is published weekly on Substack and LinkedIn. Same content. Choose your favorite delivery method. Back Issues.

I’m getting ready to put out my review of the Anycubic Kobra X, but before I’m ready to conclude my testing, I needed to see how it did on a bigger project. My shocking discovery was, after all this time 3D printing things, that I’ve never made an R2-D2. Well, that was an omission that needed to be rectified. I did, and I have some learnings to impart after doing so.

Here’s an interesting story. When I shared my script with ChatGPT to get its help with the above picture, it refused to help out when it knew the model was called R2-D2. Even when I told the AI that this was fair use and I was holding a physical item I made, it did not relent. But when I started a new session and called R2 a robot instead of its proper name, ChatGPT helped produce the thumbnail you see above.

I also had to spend a few prompts trying to convince it to use my actual face, but I’m fairly certain it finally figured out I’m not a Disney character.

Here’s a quick recap of the articles I published in the last week on ZDNET.

How I stopped a massive WordPress spam attack with 4,700 lines of code in two days - thanks to Codex and Claude: Spam accounts overwhelmed my database. Claude found the weaknesses, Codex wrote the fixes, and I deployed a new defense.

How I set OpenAI API usage limits to stop agent overspending and other AI billing nightmares: OpenAI API costs can spiral when agents run wild. Here’s how to set spend limits, enable hard caps, and avoid surprise AI bills.

Moving on, let’s queue up some interesting YouTube videos for your entertainment and edification.

Image: Amazon

This is some nasty stuff, but it’s nasty in a good way. It’s not just “spray glue.” It is closer to contact cement in a can. It grabs fast, covers big surfaces evenly, and bonds materials that are miserable with ordinary glue, like foam, fabric, cardboard, insulation, plastic, metal, wood, laminates, and more. The cool part is the speed and reach. You can coat a wide area without brushing, clumping, soaking, or waiting around forever.

On the other hand, it could kill you, or at least muck you up. Amazon says it’s not for sale in California and “other states.” That’s because of its VOC content. Aerosol adhesives put solvents into the air, and some states limit which versions can be sold or used. 3M’s own aerosol guidance says VOC rules may restrict sale or use in CA, CO, CT, DC, DE, IL, IN, MA, MD, ME, MI, NH, NJ, NY, OH, PA, RI, UT, and VA. So it is powerful stuff, but it is regulated like powerful stuff. In other words, use a mask.

Note: As an Amazon Associate, I earn from qualifying purchases.

And now, some good stuff from around the Internet, well worth checking out.

  • Japan’s Hayabusa2 probe just did near-contact flyby of an asteroid near Earth orbit. Did you ever watch Bruce Willis in Armageddon (one of the best movies ever made)? This Japanese probe is kind of like a beta Brucebot, as it’s helping Japan develop what might someday be a response protecting the planet from cosmic extinction-level events.

  • Why do trees planted in the desert grow faster than trees planted in the forest? Scientists at China’s “Great Green Wall” are trying to figure it out.

  • ZDNET’s Steven Vaughan-Nichols explains that Secure Boot has always been a nuisance for Linux users, but Microsoft’s expiring 2011 certificate authorities are making it a real pain.

I’d like to regularly spotlight a reader project or two here. Your project doesn’t have to be a big Kickstarter launch. If you’ve built something cool, it has some pretty pictures, and you’re proud of it, I might be able to share it here.

If you have a photogenic reader project, send an email to me at david@zatz.com with the subject “READER PROJECT,” a few pictures, and a short one-paragraph description. If you have a social media link or a link to the project, include that, too.

Available on all your favorite streaming services.

I’ve got a lot happening all over the web. Here are links to my various stuff:

Feel free to dig around, visit, and say hey!

Substack supports comments, so feel free to leave some. I promise to read them. Just, please, let’s keep our personal politics out of any discussion.

That should do it for this week. This newsletter is really starting to pick up subscribers. Please help it out by sharing links on all your socials.

Have a great week!

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