tinkering. co-founder & board @eco @lightworkhome @join_freeworld; co-founder & prev CEO @coinlist; venture @amityventures. writing & projects 👇

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Joined October 2013
I built the LLM interface I wished existed. interface0 is for power users: cross-provider memory & chat, multi-model synthesis, sharing & team features, granular context engineering, template prompts, forking, prompt enhancing, & more Here's a demo—see 🧵 for the rest
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Andy Bromberg retweeted
I just had my house tested by @lightworkhome and low and behold, like @lennysan... I too was being blasted by EMFs🔌 They did a 4hr+ at home assessment covering air + water quality, mold, EMFs, lighting & household products (you can see my results overview below) Even though we're renting, making a few changes to create a 'default healthy' home environment feels like such low-hanging fruit because they're mostly one-and-done fixes. Their estimate was that it'll cost <$250 total to make the main suggested improvements (full-spectrum flicker-free LED, wifi-router cover, plug timer to turn off connected devices at night, shielded extension cords etc.) I'm so bullish on what @andy_bromberg, @DomFrancks and the team are building with Lightwork. If you're interested in learning more they're generously offering a free home health consult here: lightworkhome.com/nsm
I did a whole-house toxin health assessment, where a guy spent half a day testing our house's air quality, water, EMFs, lighting, mold, and household products. So many surprises: - Our Waterdrop reverse-osmosis water filter seems to be introducing a chemical (Dichloromethane) into our drinking water that wasn't in the (whole-house filtered) tap water. Will recheck this to make sure it's not a fluke. - Even though we have air purifiers in many parts of the home, they weren't on the proper setting so our air quality was not great. Turned them all up higher. - Most of our light bulbs have blue light and super high flicker rates which disrupt circadian rhythms. Replacing a bunch of them. - The wifi router in my office is EMF'ing the sh*t out of me. Going to move it to a different part of the room. - The powerstrip under our bed is EMF'ing the sh*t out of us. Getting a grounded power strip that avoids this. - Some of our shampoos and soaps had harmful ingredients. On the plus side, no gas leaks or carbon monoxide 👌 I'm predicting this is going to become the next microplastics-type trend, to test your home for toxins and harmful products.
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Andy Bromberg retweeted
It turns out, my house has been making me dumb(er). Sorry about that. Fixing it now. After I saw Lenny's tweet a month or so ago, I did a home health assessment and here’s what I found: - High CO2 levels (~1,000 ppm) due to lack of ventilation. Studies correlate CO2 at this level with impaired cognitive function. Fix is simply opening windows. - High levels of small particulate matter (PM0.3 - PM1.0) in the home compared to outside. Air purifiers are the move here. - LEDs impacting sleep. We swapped out bedroom LEDs for incandescents. - We had WiFi Access repeaters throughout the house. RF levels were high. Still learning about EMF effects but out of precaution took out the repeaters next to where we spend a lot of time (e.g. the kitchen). - Luckily, very low levels of mold!
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Thrilled about this!
Lightwork was selected to perform home health assessments for clients of Immortals Concierge, Immortals’ premium concierge health program, ensuring member homes are evaluated alongside the rest of their health. As announced by @bryan_johnson in February, Immortals Concierge includes a dedicated concierge team, BryanAI 24/7, extensive testing, millions of biological data points, continuous tracking, evidence based skin and hair protocols, and access to the best longevity therapies on the market — as well as a Lightwork Home Health assessment. "Immortals Concierge is an exceptional program, and we're excited to provide assessments to their clients and help them create healthy, optimized home environments," said @andy_bromberg, Co-Founder of Lightwork, “home health is a critical component of overall well-being and longevity. Immortals Concierge follows a philosophy of ‘measurement, scientific research, intervention, repeat,’ and Lightwork aspires to the same approach.” Lightwork’s home health assessments are comprehensive, white-glove evaluations that can include air quality, water quality, EMF exposure, lighting, mold, noise, chemical exposures, and more, along with remediation support. Lightwork leverages its custom technology and procedures to quantify these exposures and potential remediations, which are measured against the Lightwork Exposure Index, a proprietary set of science-backed standards.
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Lightwork was selected to perform home health assessments for clients of Immortals Concierge, Immortals’ premium concierge health program, ensuring member homes are evaluated alongside the rest of their health. As announced by @bryan_johnson in February, Immortals Concierge includes a dedicated concierge team, BryanAI 24/7, extensive testing, millions of biological data points, continuous tracking, evidence based skin and hair protocols, and access to the best longevity therapies on the market — as well as a Lightwork Home Health assessment. "Immortals Concierge is an exceptional program, and we're excited to provide assessments to their clients and help them create healthy, optimized home environments," said @andy_bromberg, Co-Founder of Lightwork, “home health is a critical component of overall well-being and longevity. Immortals Concierge follows a philosophy of ‘measurement, scientific research, intervention, repeat,’ and Lightwork aspires to the same approach.” Lightwork’s home health assessments are comprehensive, white-glove evaluations that can include air quality, water quality, EMF exposure, lighting, mold, noise, chemical exposures, and more, along with remediation support. Lightwork leverages its custom technology and procedures to quantify these exposures and potential remediations, which are measured against the Lightwork Exposure Index, a proprietary set of science-backed standards.
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Andy Bromberg retweeted
For those founders with strong ops DNA exploring India1 opportunities, I predict a @lightworkhome for India could be an interesting startup idea. This could also be an interesting revenue angle for Urban Co to explore. Essentially 1/ scan for toxins across the house 2/ recommend mitigation tactics incl curated products (with a commerce opportunity) D2C founders could look at specific toxin-free variants of products such as mattresses (foam emits phthalates etc). More on this below.
I did a whole-house toxin health assessment, where a guy spent half a day testing our house's air quality, water, EMFs, lighting, mold, and household products. So many surprises: - Our Waterdrop reverse-osmosis water filter seems to be introducing a chemical (Dichloromethane) into our drinking water that wasn't in the (whole-house filtered) tap water. Will recheck this to make sure it's not a fluke. - Even though we have air purifiers in many parts of the home, they weren't on the proper setting so our air quality was not great. Turned them all up higher. - Most of our light bulbs have blue light and super high flicker rates which disrupt circadian rhythms. Replacing a bunch of them. - The wifi router in my office is EMF'ing the sh*t out of me. Going to move it to a different part of the room. - The powerstrip under our bed is EMF'ing the sh*t out of us. Getting a grounded power strip that avoids this. - Some of our shampoos and soaps had harmful ingredients. On the plus side, no gas leaks or carbon monoxide 👌 I'm predicting this is going to become the next microplastics-type trend, to test your home for toxins and harmful products.
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We built a free, data-driven tool to objectively help you choose the right air purifier for your home. There is so much marketing noise in the air purifier space. Companies use and come up with all sorts of buzzwords to suggest that their purifier does something special. It's shockingly difficult to get straight answers and objectively evaluate performance. So we created a free tool to help you pick the right air purifiers for your home. 100% free, no signup required, no affiliate links, no partnerships or bias. Just data. Here’s something that might surprise you: most modern air purifiers filter about the same percentage of particles. Any HEPA filter removes at least 99.97% of particles at around the size it performs worst at (which is pretty dang good!). So what matters more is throughput (measured as CADR, or Clean Air Delivery Rate), how much air the unit can push through that filter. A purifier that's too small for your room will never get the air clean, no matter how good the filter is. But after consulting on air filtration with a lot of clients, we've realized that there are some other real-world, practical considerations that most recommendations ignore: > Quiet matters. If an air purifier is too loud, people simply won't use it. And an unused air purifier is no good at all. > Ease matters. If you have to replace the filters too often, most people will simply not do it. And dirty filters tank the efficacy of a unit. > Beauty matters. For many customers, having an ugly air purifier is a non-starter. So finding aesthetically-appealing ones, at least for certain rooms, is a factor. > Price matters. On top of all that, people want value. If it's too expensive, it won't get purchased in the first place. So we've created a tool that factors in all of the above to recommend the right air purifiers for your home. You put in your room sizes and preferences around noise and design, and it recommends a best-value pick and an upgrade pick for each room. The site walks through the methodology behind it all, including a metric we developed called "Quiet CADR," the clean air delivery rate at a volume you can actually live with. One of our main goals at Lightwork is to bring science-backed, data-driven rigor to the home health industry, which has historically been plagued with imprecision, poorly-supported claims, and (at worst) scams. (link below)
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Andy Bromberg retweeted
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Andy Bromberg retweeted
I did a whole-house toxin health assessment, where a guy spent half a day testing our house's air quality, water, EMFs, lighting, mold, and household products. So many surprises: - Our Waterdrop reverse-osmosis water filter seems to be introducing a chemical (Dichloromethane) into our drinking water that wasn't in the (whole-house filtered) tap water. Will recheck this to make sure it's not a fluke. - Even though we have air purifiers in many parts of the home, they weren't on the proper setting so our air quality was not great. Turned them all up higher. - Most of our light bulbs have blue light and super high flicker rates which disrupt circadian rhythms. Replacing a bunch of them. - The wifi router in my office is EMF'ing the sh*t out of me. Going to move it to a different part of the room. - The powerstrip under our bed is EMF'ing the sh*t out of us. Getting a grounded power strip that avoids this. - Some of our shampoos and soaps had harmful ingredients. On the plus side, no gas leaks or carbon monoxide 👌 I'm predicting this is going to become the next microplastics-type trend, to test your home for toxins and harmful products.
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I love Obsidian, but I hate pasting my notes into Google Docs to share & collaborate with others. So I built a plugin called Collaborative Folders that enables real-time, e2e encrypted, multiplayer editing inside your local Obsidian app.
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Note: beta product, use with caution and always back up your vault! p.s. if anyone knows someone at Obsidian and can get my community directory submission nudged... I'd appreciate it :) github.com/obsidianmd/obsidi…
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We tested @awilkinson's house. He's as health-conscious as they come (and his house was top tier). But we still found room for improvement. In his recap, he said: "I've talked to a bunch of friends about this. The ones who've gotten their homes tested all have the same thought: 'It's insane that nobody checks this stuff.'"
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This week: parallelization & speed boosts, @triggerdotdev integration for background tasks (it's amazing), full Google Drive indexing, and more.
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This week: the Google Docs AI integration that Google should have shipped themselves! Tag interface0 in a comment and it'll reply and edit the doc in suggestion mode For more on this feature & comparison videos: andybromberg.com/interface0-…
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"What'd you get done this week?" If you're a builder and want to answer that question weekly to a group of exceptional peers, this is for you. I'm experimenting with creating a cohort of 3-6 hand-picked tinkerers / hackers / builders / makers / artists who privately share their weekly progress with each other. 100% free. Accountability & inspiration guaranteed or your money back. Every week, each person shares a 2-5 minute Loom / demo of what they built. No weeks off (with reasonable exceptions). You can be working on software, hardware, design, carpentry, artistry, whatever. If you’re an interested tinkerer and making something cool, fill out the form linked in the post: andybromberg.com/tinkering-c…
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Andy Bromberg retweeted
I've written extensively about how our environment is poisoning us, creating the sickest generation of Americans we've ever seen. And I suspect one of the core contributors to Americans' poor health is their home environment. Think about it. Our ancestors lived outside by default, breathed fresh air, had natural light cycles, and weren't surrounded by synthetic chemicals. Most homes are pretty much the opposite. Understanding and fixing the 1000 things that could cause issues in your house is a pain. That’s why I'm incredibly excited about what my friends @andy_bromberg and Alexa are building at Lightwork Home Health. After their own health journey (which was wild - see below), Lightwork is creating what I'd call "functional medicine for your home environment." Lightwork launches this week to help people identify and fix the parts of their homes that might be making them sick. Think comprehensive testing and personalized recommendations for everything from lighting to air quality to non-toxic water filtration - lightworkhome.com/ I genuinely believe in this, so much so that I helped Andy and Alexa get Lightwork off the ground last year, and I joined them and Jay Devram as a (non-operational) co-founder. I’m also thrilled that @johnnyfbowman and @DomFrancks are leading the flagship NY and SF locations. If chronic disease is environmental (and I think it is), your home environment is one of the biggest levers for change. I think focusing on the home as a source of disease will help millions of people improve their health, and am thrilled that Lightwork is finally in the world.
My wife Alexa and I learned the hard way: homes can be (very) toxic. It took us a year to find & fix the cause of our health issues. Nobody should need to go through that. So w/ our friend @jwmares we incubated Lightwork: the world's most data-driven home health assessment. 🧵
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My wife Alexa and I learned the hard way: homes can be (very) toxic. It took us a year to find & fix the cause of our health issues. Nobody should need to go through that. So w/ our friend @jwmares we incubated Lightwork: the world's most data-driven home health assessment. 🧵
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And many more! For those curious — check out lightworkhome.com and @lightworkhome To happy & healthy homes —
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