Director of Engineering at PermitZIP.

Richmond, Virginia
Cracked Engineering Live is officially on. Dec 8, 2 PM ET. I will be opening up our engineering harness at @PermitZIP and showing AI agents doing real MEP/HVAC work, live. Nick Heim will help cohost and field questions. Plus a first look at Mutiny BIM. Limited call-in spots, so bring your questions and join us on stage. Register: luma.com/pymdzpvh
I'm hosting a live webinar soon. We'll be showing real life engineering in our existing harness at @PermitZIP and if Mutiny is ready, can show some examples of where we are with it. Let me know if that is something you'd want to see.
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Zero-shot from Opus 5.5: auto home runs and circuit routing for Mutiny. Our electrical team at @PermitZIP recorded their workflow on five completely different project types. We gave the agent those five videos and nothing else. No extra prompting. It still needs some cleanup, but once it's tight, this will save SO many hours of drafting.
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Wait. So it’s HUMANS that hallucinate?
Many of you don't understand how serious this is, so let me break it down. In computer science there is a famous kind of puzzle called 3-SAT. You are given a long list of yes-or-no switches and a set of rules about how they must be arranged, and you have to find a combination that satisfies every rule. The obvious way to solve it is to try every combination, but each new switch doubles the number of possibilities, so a puzzle with a few hundred switches would take longer than the age of the universe to brute force. For decades, the smartest people in the field found clever tricks that made this a little faster, but every trick still hit the same wall: the time required kept exploding as the puzzle grew. About 25 years ago, two computer scientists, Russell Impagliazzo and Ramamohan Paturi, working with Francis Zane, turned that wall into a formal idea. They proposed the Exponential Time Hypothesis, which says this explosion is not a failure of human cleverness but a law of nature. No algorithm, however brilliant, will ever solve 3-SAT without the time blowing up exponentially. Nobody could prove it, but almost everyone believed it, and it became one of the foundations of modern computer science. Researchers used it as a measuring stick. If you could show that solving some other problem quickly would also crack 3-SAT quickly, you had shown that problem was hopelessly hard too. Hundreds of papers, across scheduling, graphs, logic and much more, rest on this one assumption. Now an internal AI model at OpenAI claims to have broken it. It says it found an algorithm that solves these puzzles meaningfully faster than the hypothesis allows, and it has checked the proof in a computer verification system called Lean. And here is the remarkable part: the very people who proposed the hypothesis, Impagliazzo and Paturi, along with MIT's Ryan Williams, are now leading the public review of whether a machine has disproved their own idea. So what happens next? If the disproof holds, a large part of theoretical computer science has to be revisited. Every result that said "this problem cannot be solved faster, assuming ETH" loses its foundation, and researchers will have to work out which of those walls were real and which were simply where we stopped looking. It does not mean everything becomes easy. The new algorithm is still slow in absolute terms and this is not the famous P versus NP problem being solved. But it means our map of what is possible was wrong in a place we were very confident about, and it was an AI that redrew it. If the disproof fails, the hypothesis survives and the field breathes out, but we will still have watched an AI produce serious, checkable work on one of the deepest questions in the discipline, closely enough that the founders of the idea had to take it seriously. Either way, something has shifted.
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We're a small MEP firm, and our software just built one of its own features. It was never meant to write software. I mean, we built it as an IDE for MEP engineers, so maybe I shouldn't be surprised. What is emerging: an MEP agent working on an MEP task hits something the platform can't do yet. So it spawns a software agent to build the missing feature, and keeps working while the MEP agent continues completing what it can. When the feature ships, the first agent picks it up and finishes the job. Every feature's cost is tracked down to the dollar. A software engineer still reviews everything before it merges. It's still hard to believe. The image below: the latest feature lets an engineer screen record, Loom-style. Maybe they walk through the architectural PDF, show where the ductwork should enter, then switch to Mutiny BIM and trace the route to the RTU. Describing their engineering direction along the way. The video goes straight to the agent, which then studies the transcript, and footages. Our goal has always been to remove friction and make the transition from request to final product less lossy. Video is a natural multimodal way to add fidelity to that process. A big company would pay enterprise prices for these kinds of capabilities, sign a $500k contract, and spend years getting people to use it. Our small firm built it for $144.
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Fun side note: below is the ground work for measuring impact of the feature. Impact X Confidence X Ease. How much impact will the idea have on the business, how confident are we in that estimate, and how easy will it be to implement. This is a fun annotation layer because we want to train a classifier to help prioritize initiatives that would automatically queue up agents to do batch feature updates on a nightly or weekly schedule.
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Almost 160 signups in under two days. BIM experts, firm CEOs, VC-backed startup founders. My wife is going to FINALLY believe me that MEP engineering is cool. Dec 8, 2 PM ET: luma.com/pymdzpvh
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There are some interesting comments and thoughts on this MIT licensed local transcription app we released from @PermitZIP. One cool idea if someone wants to take it on is a lightweight general jev-like classifier that could be used to filter out noise words. Or a very small LLM adapter that could be added for some kind of punctuation and sentence structuring. Something small that can run in local memory, and it would be optionally loaded when starting the app so you could keep it light weight or more robust depending on your available memory. Objective is to avoid API calls, avoid any storage of audio or transcriptions. Just get from text translated from person to app. Video demo below:
Built a fully local dictation app for macOS in Rust. Hold F6 in any app, talk, text streams in at your cursor. No cloud, no audio saved to disk, MIT licensed. Total cost: $56.36 in Kimi K3.1 tokens via OpenRouter + OpenCode. Meet Quil 🪶 github.com/permitzip/quil
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Built a fully local dictation app for macOS in Rust. Hold F6 in any app, talk, text streams in at your cursor. No cloud, no audio saved to disk, MIT licensed. Total cost: $56.36 in Kimi K3.1 tokens via OpenRouter + OpenCode. Meet Quil 🪶 github.com/permitzip/quil
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Building design should work like version control, but in real time. The live model = main. Real-time, and each designer edits only their domain. Design options and VE ideas = a branch. RFI = a pull request, with the change already drafted. EoR and city review = code review. Stamp = a signed release. An immutable snapshot of exactly what the EoR supervised. Procore and Autodesk keep the decision trail next to the construction documents. In Mutiny BIM, it becomes the model.
Mutiny is built agent-first. MCP tools ship native, so it dropped straight into our own AI agent harness. The first half of this video is Mutiny embedded into the harness we built at @PermitZIP for our MEP engineering. Then I click out, and it's just Mutiny. It's real-time, multi-user, and standalone in a browser tab. No sync to central. No desktop install. No audit clause.
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Mutiny is built agent-first. MCP tools ship native, so it dropped straight into our own AI agent harness. The first half of this video is Mutiny embedded into the harness we built at @PermitZIP for our MEP engineering. Then I click out, and it's just Mutiny. It's real-time, multi-user, and standalone in a browser tab. No sync to central. No desktop install. No audit clause.
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Our small business (an MEP firm) built an AI harness for our engineers. Now it's good enough that we're using cloud agents to improve the harness itself. We created Mutiny BIM inside that platform because Autodesk couldn't support our goal: 100% vibe-drawn engineering plans by Q2 2027. We also plan to open-source the BIM portion. Imagine a building owner prompting permit drawings into existence, or a contractor requesting a ductwork revision and seeing it update in real time. Or getting their own revision sketches by riffing with their Grok Bot or Dot or Muse. Licensed engineers remain involved to validate designs, answer questions, and take responsibility for stamped drawings. No more waiting weeks for RFIs and drawing revisions. Genuinely hard to believe how fast this all is happening for our business @PermitZIP and what small companies are able to create for themselves now. #MutinyBIM
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We'll be showing the tools live on the webinar. How we use the harness, go over real examples of real engineering tasks being completed with real agents. All done with normal people at a small business. We'll take live questions and invite people on to the call. We'll also show Mutiny BIM. How it integrates with our platform and how it can be used as a standalone product. nitter.siddz.com/PermitZIPhvac/status/2…
Cracked Engineering Live is officially on. Dec 8, 2 PM ET. I will be opening up our engineering harness at @PermitZIP and showing AI agents doing real MEP/HVAC work, live. Nick Heim will help cohost and field questions. Plus a first look at Mutiny BIM. Limited call-in spots, so bring your questions and join us on stage. Register: luma.com/pymdzpvh
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Schedules will also be live, realtime updated and collaborative. No more sync to central. And your agent can see and update the directly. This will be a huge feature, LLMs are great with structured data. Many drawing changes are just schedule and note revisions. This will be the easiest thing to delegate to an agent in early "vibe drawing" at @PermitZIP #MutinyBIM
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Cracked Engineering Live is officially on. Dec 8, 2 PM ET. I will be opening up our engineering harness at @PermitZIP and showing AI agents doing real MEP/HVAC work, live. Nick Heim will help cohost and field questions. Plus a first look at Mutiny BIM. Limited call-in spots, so bring your questions and join us on stage. Register: luma.com/pymdzpvh
I'm hosting a live webinar soon. We'll be showing real life engineering in our existing harness at @PermitZIP and if Mutiny is ready, can show some examples of where we are with it. Let me know if that is something you'd want to see.
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All the agencies right now

ALT Tech Company GIF by slicedbread

Every exploit AI is “discovering” was undoubtedly already known by three-letter government agencies for decades and used to hack the living hell out of each other. Patch the Planet.
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AI probably isn't a good fit for the, "If you want something done right, you have to do it yourself," crowd.
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December 8. Mark your calendars. We're hosting a live webinar showing how we're using AI agents to perform real engineering work at @PermitZIP. We'll open up our engineering harness, walk through actual workflows, and hopefully give everyone a live look at Mutiny BIM and how far we've gotten. I'm also thinking we make this interactive. Let attendees submit real engineering challenges ahead of time and pick a few for our agents to tackle live. We may limit the interactive spots so we have time to really dig into the problems and answer questions. More details and registration coming soon! Who's interested? And what engineering challenge would you want to see our agents attempt? #MutinyBIM #AIEngineering
I'm hosting a live webinar soon. We'll be showing real life engineering in our existing harness at @PermitZIP and if Mutiny is ready, can show some examples of where we are with it. Let me know if that is something you'd want to see.
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