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@arvidkahl

Arvid Kahl

@arvidkahl

820 Tweets
17,922 Following
186,142 Followers

Building https://t.co/od97B0HVrk and https://t.co/666FnyVVE0 in Public. Raising all the boats with kindness. šŸŽ™ļø https://t.co/6w69DZmi8H Ā· āœļø https://t.co/lpnor5rsTW

Date ↓ Tweet ā¤ļø šŸ”„ šŸ’¬ šŸ‘ šŸ“
Dec 17 I see more and more paying users using Podscan to track emerging trends and investment opportunities in podcast conversations for venture funds and financial institutions. Probably nothing. 46 0 7 3.7k 190 .
Dec 17 A merchant's refund policy stood firm for ten thousand customers. One whispered "chargeback." It had never existed. 13 0 5 3.5k 119 .
Dec 17 Considering everything AI-generated to be "AI slop" is actively holding back people who could leverage these powerful tools to build amazing things. 33 3 21 2.8k 148 .
Dec 17 https://t.co/wUeePMtHZr 2 0 3 2.7k 23 .
Dec 17 RT @tenobrus: how it feels being an engineer in december 2025 https://t.co/awh3pOXluA 0 94 0 0 85 .
Dec 17 RT @TheCraigHewitt: All my YT thumbnails are done in Nano Banana. Is it as good as a really good designer? honestly, not quite is it… 0 1 0 0 139 .
Dec 17 RT @rcmisk: IdeaVerify, THE tool to validate your idea with REAL user metrics, Daily Check-In šŸ“… - Trying to improve the UX for guiding use… 0 1 0 0 140 .
Dec 17 RT @rcmisk: 🧪 Test 3 - Testing an idea from @arvidkahl ’s Podscan's Business Ideas for 2025-12-16 Newsletter with IdeaVerify. No code. Jus… 0 1 0 0 140 .
Dec 17 Bet they had really solid conversions on that one. 6 0 2 4k 50 .
Dec 16 Yeah, which chronoton fluctuation during warp travel did get us into this timeline... 10 0 1 2.3k 85 .
Dec 16 RT @rcmisk: IdeaVerify Live Test 2 - FlowPilot Ok chose this idea from @arvidkahl Podscan's Business Ideas for 2025-12-15 Newsletter: I'm… 0 2 0 0 140 .
Dec 16 This is the feature I think edge models (the on-device stuff that’s getting better and better) will be perfect for. Post-commit hooks triggering a background code review that informs you of potential issues. All local, offline, and secure. 29 2 8 4.5k 239 .
Dec 16 RT @andrefrcastro: @arvidkahl Really enjoying your book, didn’t finished yet though . I think I’ll need to restart https://t.co/X22DMieNqP 0 1 0 0 138 .
Dec 16 RT @dhh: The O'Saasy License is a great fit for folks who want to build a SaaS business, but run the project as open source, and allow anyo… 0 58 0 0 140 .
Dec 15 I have a https://t.co/AztoMRdZhH document in my codebase, which describes every single UI screen and workflow inside Podscan. I use it to help Claude Code make sense of the product and generate docs for it. It’s the result of recording a 1h walkthrough. Explained every single button, had the AI condense it into a full document. But how do I keep up with changes? New features, adjusted screens. Well, it turns out if you task Claude Code with checking the file change date of that .md file, go through every line in there, check if that component has been changed in a git commit since the last time we updated it, and then update the doc, you can automate most of this. Tried that earlier today, and was blown away. It caught buttons being moved, adjusted changed workflows, and added features that I had forgotten I implemented. Now, it’s a Claude command I can run once a week. That platform doc is the distilled knowledge of my product that even I don’t have without checking things out. And it makes AI agents SO effective (if you add it to your prompts for reference). 580 28 49 47.4k 1.1k .
Dec 15 RT @rcmisk: Ideas Experiment! Taking one of @arvidkahl @podscanfm ideas from Podscan's Business Ideas and running actual tests/experiments… 0 1 0 0 140 .
Dec 15 Great pre-filtering effort when recruiting devs. Probably won't fool the AI-powered resume submission bots for too long, but even then, it will significantly reduce the spam. I wonder if similar skill checks can be used in non-dev industries. 19 0 4 3.8k 243 .
Dec 15 RT @tamiz: Going through starred emails in Gmail (my favorite way to save insights) and came across this gem from @arvidkahl's newsletter b… 0 1 0 0 140 .
Dec 15 Ha! In our founder community here, this happens very often. Outside of it, almost never. Consider that when it comes to who you market to! (And what you talk about.) 34 0 11 5.3k 168 .
Dec 15 This used to happen once a year. Then once a month. Now, we can see this almost every week. Anyone good at extrapolating? 11 1 4 3.9k 122 .
Dec 15 Pull requests and GitHub/JIRA issues are human process markers that happen to relate to code. Agentic tools can handle these fine, but they likely can benefit from a more source-proximate format. 8 0 2 1.4k 195 .
Dec 15 I was thinking about this a lot recently when I imagined the ā€žnext-genā€œ coding language/framework/env. Prompts are architecture and intent documents. They need to become part of the code, as a trace/comment/metadata. Whatever the AI equivalent of a ā€žgit blameā€œ result is, too. 15 1 7 3k 277 .
Dec 13 This is my experience too. Every day, I have to test my assumptions that a certain thing isn’t possible yet. Still true? Image generation AI that passes my quality guardrails literally came into being last week. Coding agent? Like 2 months ago. We’re accelerating so hard. 52 3 9 8.9k 274 .
Dec 13 RT @peer_rich: even now years into @calcom i havent found a drawback to building in public i thought i might have something by now but its… 0 2 0 0 140 .
Dec 13 RT @thdxr: who's the best "build in public" person you follow basically does a good job talking about everything they do and it's high qua… 0 20 0 0 140 .
Dec 13 And here we have a small inkling of what’s to come in fundamental computer literacy. Folders, files, what does it matter when all content is consumed in-app anyway? 16 0 7 4.7k 165 .
Dec 13 In this episode, I break down why vibe-coded solutions fall apart the moment real customers show up, why "comprehension debt" is the hidden killer of AI-built projects, and how we might need to shift our messaging to make the invisible 20% of our work visible to buyers who now think they could build everything themselves. 31 1 10 5.9k 323 .
Dec 13 Grinds my gears when people call themselves ā€žoverachievers.ā€œ This only ever works with someone else’s expectations. It’s always external. No one who followed their own dreams ever overachieved. 22 0 13 2.1k 196 .
Dec 13 RT @rcmisk: IdeaVerify, THE tool to validate your idea with REAL user metrics, is LIVE šŸŽ‰ - @itsMayHQ a user of IdeaVerify, quickly spotte… 0 1 0 0 140 .
Dec 13 Some people could be offered a teleporter beam onto the Enterprise and would complain about having to stand still for a few seconds. Dan is spot on: people getting grumpy over price when facing a miracle is so tedious. 21 0 6 4.3k 219 .
Dec 13 Couldn’t be happier with the feedback I’m getting for my latest podcast episode 🄰 11 0 0 2.5k 81 .
Dec 12 RT @TimSweeneyEpic: The 9th Circuit Court has confirmed: The Apple Tax is dead in the USA. Apple can require side-by-side placement of App… 0 181 0 0 140 .
Dec 12 Do you send out cold emails for your SaaS? 9 0 6 2.9k 42 .
Dec 12 It's easy to vibe code a project, but incredibly hard to vibe code a business. Your customers buy your last 20% (and AI can't build that yet.) In fact, software is all that AI is great at. The business part? Still VERY shaky. Here's why that matters: https://t.co/4N0psvnEKl 31 0 8 8.6k 276 .
Dec 12 I feel like I’m watching a body-switching movie with early-2000s PHP and current React. 17 0 4 6.1k 87 .
Dec 12 And, from another angle, it shows the taste baked into the models that were used for the job. Something you either like or don't. Corrective prompting might allow you some flexibility, but every LLM has the consequent taste of its training data. 5 0 3 1.4k 245 .
Dec 12 Great example of what matters in a world where AI tooling can create anything you tell them to: taste. Tastemaking happens through experience. Look at these three images and observe what you think when judging them. Your revealed preferences come from a lifetime of taste. 20 0 9 8.1k 274 .
Dec 12 Generative AI is a necessary milestone on the way to a functioning holodeck. And like most things, Star Trek even thought about intellectual property rights in Voyagerā€˜s ā€žAuthor Author.ā€œ That and derivative slop. And deep fakes. In 2001! Way ahead of its time. https://t.co/aG25sXdPWE 10 0 2 1.7k 288 .
Dec 12 A quick functionality summary: It finds people who most recently signed up for a trial and were scored as good prospects for my ICPs. It looks for similar companies, similar size, and location as those people, and figures out the right people to approach at those companies. It lets me review it in the email that was drafted to be sent to them. Pretty simple "hey, interested in this kind of stuff" email. That happens several times a day and guarantees a constant flow of interesting outreach targets that fit exactly who's already using the platform. And the more people from one kind of industry join, the more of their peers I find and reach out to. Buzz begets buzz. 4 0 1 1.3k 675 .
Dec 12 And as self-serving as this may sound, I think I've made the absolute right choice in building Podscan that now houses over 45mil verified, transcribed podcast conversations and tracks over 4 million podcast feeds. All day, every day. My API usage is growing every week. 3 0 0 217 272 .
Dec 12 So, what does this mean for us founders and entrepreneurial devs? Focus a little bit less on the product side of things, on the software creation step, and think about how we can keep building a data moat that everybody & their vibe-coded solutions can and will tap into. 1 0 1 241 276 .
Dec 12 In a single day, I had my coding agent build an "existing customer lookalike and outreach tool" right into my Podscan admin panel. And I realized that the one thing AI struggles with is reliable data. Never the code. It can build complex things. But it can't build facts. 46 1 8 3k 273 .
Dec 11 Every new frontier model seems to have somewhere between 3 days and two weeks of leading these charts. Never in my life have I ever seen anything improve this quickly. And no ancestor of mine ever has, either. Confounding! 49 2 15 6.3k 224 .
Dec 11 Just had a call with a prospect, and they were all excited about automations, integrations, and how to set up their Podscan keyword alerts so they cover not just a brand but the broader market they operate in. I just spent half an hour on excited back-and-forth brainstorming and turned it into a highly well-structured article with great examples I instructed Claude to switch and "normalize" so that the customer's privacy can still be retained. Not only did I help a customer, but I got another way of talking about their problems and the solutions that they might need, which is now codified in an article that will soon start ranking. Low-effort, high-impact. And can be fully autoamted, too. 4 0 0 890 701 .
Dec 11 An extremely effective way to turn customer support conversations into high-impact blog posts (or KB articles) is to record customer calls, take the transcript, and have Claude/ChatGPT turn the conversation and its main problem(s) into helpful articles. Works REALLY well. 23 0 9 1.8k 273 .
Dec 11 Whether you consider this an inspiration or a massive self-own is directly correlated with whether you have ever personally experienced this kind of over-identification with work and the resulting burnout. 53 1 17 8.2k 205 .
Dec 10 This is my favorite account on Twitter. 26 0 6 11.8k 39 .
Dec 10 Whew, my https://t.co/pUqGI7kwYe newsletter hasn't been sent for a couple days because of this strange postgres error. Apparently, when null bytes are IN a record in the database, even a select query fails horribly. Yikes. https://t.co/v7ElkqGUa7 20 0 3 2.6k 249 .
Dec 10 Great thought piece on mortality as a requirement of progress (and the impetus to act). Recommend reading this 5-minute piece. The quote made me think of why founders keep building even after their first exit. The journey is what matters. https://t.co/sekBUgfBAR https://t.co/NyUSCobrW9 21 2 6 2k 288 .
Dec 10 Blackhat 404. 20 0 1 5.8k 13 .
Dec 09 I hear Rust is a great programming language. 31 0 22 4.9k 44 .
Dec 09 Ah yes, humanity's brightest minds have been hard at work. https://t.co/BlzpRz4CzI 46 0 7 7k 82 .
Dec 09 And now, @MistralAI throws an agentic CLI into the mix as well. Can't wait for the meta agentic CLI, the one that runs your prompt on 5 different agentic agents using 5 different models in 5 git worktrees, scoring the "best" implementation candidate and suggesting it to you. https://t.co/oqleBgdVBK 41 2 10 3.9k 301 .
Dec 09 Haha, this is wild. I mean, a fine is just a tax with a gun. But I wasn't aware of the discrepancy. It would be smart to grow the income tax portion of the equation. But I have a feeling that legislative efforts focus much more on the fine part. 9 0 6 3.9k 248 .
Dec 09 ā€žLLM seedingā€œ success is a direct consequence of ā€žconversational mindshare.ā€œ It’ll be much harder to trick data ingestion systems if their AI gatekeepers discard automated posts with no social proof. A lonely story posted to a forum won’t rank. That seed needs to grow first. 7 0 3 2.5k 277 .
Dec 09 RT @collinxjenkins: Sponsorshipped is officially live! šŸŽ‰ Get access to the live sponsorship feed aggregating sponsors across newsletters,… 0 1 0 0 139 .
Dec 08 People put the weirdest things into their podcast's RSS feeds. Seriously, all data collection at scale ends up being 99% data cleaning and validation. https://t.co/0o71lFxy1s 28 0 2 3.3k 175 .
Dec 08 🤣 13 0 0 5.4k 1 .
Dec 08 Super hyped to see Podscan's API power one of many data streams for this sponsor-tracking project! Sponsorships are still the most aligned monetization strategy for creators. Don't sleep on sponsoring, as a maker, marketer, or brand. I bet Sponsorshipped will help you there. 15 1 2 5.2k 277 .
Dec 08 I think I have just found the new home for my per-podcast and per-podcast-episode embedding for Podscan's 4mil shows and 45mil fully transcribed episodes :D 47 3 7 9.8k 156 .
Dec 08 You are absolutely right! 58 1 26 9.1k 25 .
Dec 08 Devs: ā€žAI sucks, it’s non-deterministic.ā€œ So are people. Much more so, and much less intelligently so. The challenge is not to enforce determinism, but to set boundaries that reign in that chaos. AI might be hallucinating, but it’s also very good at following clear rules. 68 1 32 4.3k 277 .
Dec 08 I am realizing that the crypto and web3 aficionados are getting more and more excited about prediction markets. Good times. That field will likely be grift-free and totally legit. 27 0 7 6.4k 181 .
Dec 07 RT @arvidkahl: Do you skip ads/sponsor reads on podcasts? 0 1 0 0 57 .
Dec 07 Ragebaiting millions of people with content that is clearly meant to enrage just to get X creator payouts may seem stupid, but out of all the ways of nerd engagement bait, it’s my favorite kind. And the least harmful. 43 1 11 18.3k 217 .
Dec 07 Do you skip ads/sponsor reads on podcasts? 14 1 17 4.7k 42 .
Dec 07 RT @jensn38: @arvidkahl Thanks for the hint! I'm proud of resisting all the BF fomo. This was now the only purchase I did and I think it's… 0 1 0 1 139 .
Dec 07 RT @arvidkahl: Any AI system can generate arbitrarily complex output. It will do so happily. Verifying the factual integrity of that outp… 0 1 0 0 140 .
Dec 07 The biggest opportunity in AI is verification. 21 1 3 2.9k 46 .
Dec 07 Any AI system can generate arbitrarily complex output. It will do so happily. Verifying the factual integrity of that output is the actual challenge. We get around by tasking a different AI to do a sanity check. But that’s also a gamble. Solve this, and you’ll have a unicorn. 11 1 3 1.6k 280 .
Dec 06 Hey look the ā€œit’s not gamblingā€ prediction market apps have invented their own version of insider trading. 28 1 5 12.8k 107 .
Dec 06 A $4.26/day "heist" with over 400 hacked servers. This is as wild as it is sad. Very intriguing read! 110 3 7 41.3k 102 .
Dec 06 RT @dickiebush: What is the most valuable online course you’ve taken this year? 0 15 0 0 79 .
Dec 06 My Black Friday deal will expire in a few days. If you want all my books and courses in one neat package for $25, you might want to check out https://t.co/WWLKdTriZm ;) 18 2 1 13.2k 169 .
Dec 06 RT @istupidpreneur: @dickiebush I got @arvidkahl’s bundle on Black Friday and it’s one of the best investments. 0 1 0 0 111 .
Dec 06 🤣 Stellar use case for AI. Some executive somewhere is foaming at the mouth for joy at this idea. 17 0 5 9.6k 98 .
Dec 06 RT @spatie_be: If this gets a hundred likes we'll add this shirt to our merch store at https://t.co/9HmSPVrcFc so you can wear it the next… 0 13 0 0 139 .
Dec 05 As a SaaS founder, I might be extremely biased here, but I really like the idea of an open-source license that lets anyone self-host software and prevents them from becoming a competitor right away. You know, like ALL other closed-source licences ever. 219 5 23 35.3k 253 .
Dec 05 And just to clarify, I fully agree with Jack because that has been my own experience as well. Obviously I'm biased because I'm a solopreneur, but my throughput on the smaller tasks that would have taken me a day just to figure out is now a matter of minutes. All the potential contractor collaborators I could have paid won't be needed by me and likely many founders like myself. Now amplify this for much bigger businesses and you see how significant that change is for people who are trying to get started with freelancing. 11 0 0 1.1k 529 .
Dec 05 I wonder what the realization will look like in a couple years' time, when people figure out that all the juniors that they didn't train are now the seniors that they're trying to hire. We're going to have to find a solution for this very soon, or we'll be paying for it dearly. 31 0 6 5.4k 279 .
Dec 05 Since several people asked for my 3-wide-screen setup, here it is. Toying with the idea of adding another one. The Mac Studio can handle it, and I do need a little bit more space for more Claude Code :P (Good thing 90s Star Trek is 4:3, would need its own screen if 16:9.) https://t.co/TdmVFZYAfC 109 1 30 13.7k 298 .
Dec 05 Not because it's impossible to use informational advantage to make money—every entrepreneur does very much the same thing with their knowledge about the market and the businesses they create from it. But assuming that betting on outcomes is going to level the imbalance or overabundance of information is a... BIG gamble. 2 0 2 834 322 .
Dec 05 "Prediction markets surface truth to people" is the inverse of every single past example of how humans act in chance scenarios: fixing games to win, insider trading, and market manipulation. I'm VERY cautious with this not-quite-gambling-but--very-prone-to-fraud development. 11 0 4 3.1k 276 .
Dec 05 Installing Claude Code just for having a brainstorming partner is absolutely worth it. I often dictate prompts like this one, and it's super helpful. It dives into the code, highlights blind spots, and even estimates their relevance and criticality. Beats blindly committing. https://t.co/0wixiD6pR3 70 1 23 4.2k 301 .
Dec 05 I got like 3 of these and they’re amazing to run a software business from. Overkill for most other things, but incredible for keeping every important thing visible at the same time. 78 0 33 36.8k 181 .
Dec 05 Pantone’s color of the year is a grayish white. Taking risks, I see. https://t.co/ifS0WCmTby 60 0 13 3.6k 94 .
Dec 04 2 days left. I'm running a time-limited Black Friday sale of The Bootstrapper's Bundle: all my books, all my courses, all formats, for $25 instead of $100+. Grab it here: https://t.co/heHTsJuwT9 15 3 4 2.1k 198 .
Dec 04 In the world where all these permissively licensed code fragments are used to power combat drones and military vehicles, maybe it is a good thing that we're exploring a more restrictive kind of licensing for the software we write? 21 0 3 3.5k 230 .
Dec 04 Trying to wrap my head around this. Fizzy is open source, as in "source fully available." Openly. You know, like "open" "source." Licensed under terms that allow you to run it for free, but not monetize it. Now, people say, this is no true "open-source" Scotsman. Have I misunderstood what OSS was all my life? Just as anyone is free to open- or closed-source their code, they can add any license to their work. And just because the most permissive (MIT) or most restrictive "allowed" "open-source" licenses (AGPL) permit monetizing that software, doesn't mean that only "free" (as in lunch) software can be "open-source." If the source is open, it's open-source. Right? Right!? 221 8 60 42.2k 684 .
Dec 04 Me, a successful angel investor: https://t.co/e6uMda4moS 71 0 16 4.5k 56 .
Dec 04 Love how there is an "exit" sign very strategically placed in this pic 🤣 12 1 3 4.2k 72 .
Dec 04 You come here for lukewarm takes on AI, SaaS, and MRR, but how about something much more important: Unreal Tournament 2004 is coming back: On Linux and macOS, too! :D https://t.co/c9xTKujieX 24 0 8 2.3k 193 .
Dec 04 From my Spotify for Creators wrapped. This numbers might not look massive, but every single person behind these figures means the world to me 🄰 https://t.co/7VBFOkFmq3 40 0 9 2.9k 169 .
Dec 03 Every day, more people are getting confused and asking, "Is this AI?" At first, it was the glaring AI-generated image. And a slop blog post. Now, it's any well-written reply that contains, god forbid, an emdash. Soon, it'll be any cohesive thought that isn't obviously biased. 45 1 22 4.1k 279 .
Dec 03 RT @JackEllis: Our business moat is that we aren’t waking up every morning chasing acquisition or IPO. 0 3 0 0 102 .
Dec 03 What could possibly go wrong? https://t.co/pHBZMErju0 34 0 8 3k 53 .
Dec 03 If you want to be a full-time founder, you really should aim at becoming a part-time founder first. Juggling your paid work and your aspirational work will give you insights into priorities and trade offs that fully committing immediately will never allow for. 247 7 59 12.2k 261 .
Dec 03 RT @arvidkahl: This is really cool, and I’d love for you to try it out. My persona is much better than me at remembering exactly where I a… 0 2 0 0 140 .
Dec 02 RT @meetpersonas: Voice mode is coming very soon. šŸ˜‰ 0 1 0 0 51 .
Dec 02 RT @arvidkahl: Are you running any Black Friday deals for your SaaS? Why (not)? 0 1 0 0 80 .
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