Dad, fly fisherman, product builder. Founder/CEO LemonStand → exit to @Mailchimp. Recently, CEO of $TINY portco. Exploring my next thing 🚀

Canada
Joined July 2012
Five years as CEO of Orbit, owned by Tiny, taught me this: Buying a profitable business doesn’t buy permanent profits. Grow, renew, sustain, harvest or close. The budget and targets need to match the choice in strategy. “Hold forever” isn’t an operating plan. halarewich.com/writing/essay…
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The same thing that's happening to developers is going to happen to wealth management and financial advisors. The best will use these tools to be even better. The mid will perish.
We've raised a $70,000,000 Series B, led by @eqtventures, bringing our total funding to $110 million in just two years. At @neviswealth we believe financial advice will always be human-led. But advisors spend far too much time on administrative work, held back by outdated and fragmented technology. Nevis brings CRM, meeting intelligence, financial planning and custodial workflows into one AI platform. Our agents execute work end-to-end, enabling advisors to serve more clients, deliver more services and grow faster. The past 12 months have been extraordinary: - Revenue has grown more than 25x. - We've partnered with 10+ leading RIAs, including Focus Financial Partners, IEQ Capital and United Capital. - Assets on Nevis have grown from $50B to over $700B, adding $50B every month. - Our AI agents have completed over 100,000 operational tasks. Advisors using Nevis are already reclaiming up to 10 hours a week and taking 30% more prospect meetings. Our ambition is to make every financial advisor a super advisor, equipped to serve more clients, deliver more personalized advice and build businesses at an entirely new scale. This funding will allow us to grow our team, accelerate product development and build new products across the wealth management technology stack. I'm also excited to welcome two new investors, @CharlesSchwab and Quantum Light. Schwab's strategic investment will deepen our partnership and unlock more AI-powered workflows for the 16,000+ independent RIAs they serve. QuantumLight is the venture capital firm founded by Revolut founder and CEO Nik Storonsky. Every one of our existing investors, including @sequoia , @ICONIQCapital and @RibbitCapital, has also doubled down. To our customers, investors and above all our team, thank you for your trust, ambition and relentless execution. We're building the foundational AI platform for wealth management. And we're just getting started. Read more here: neviswealth.com/blog/nevis-r…
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On a flight to Toronto. Delegating various types of work to a team of Grokbots, pushing code, and listening to a @collision's Cheeky Pint episode. All from my phone. Laptop is at home. What a time to be alive
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Danny Halarewich retweeted
Delete WisprFlow. Delete Willow Voice. Delete Typing. FluidVoice is here. Premium dictation that runs entirely on your device. No compromises. period.
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The hardest part of launching a new business inside an existing company isn't the market. It's the calendar. Every week is already claimed by something that makes money. At Orbit we built Alliance Pro to a six-figure run rate out of weeks that were already spoken for. Wrote up how we decided who got the week, how much we were willing to lose, and what counted as evidence to keep going: halarewich.com/writing/essay…
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Doing number 1 with number 2 is the ticket. My motto with venture building has always been "do cool shit, tell people about it". The Grok team does this well. Announcing each feature is also a morale boost for the team.
Marketing moves I'd bet my life on: 1. Make every new feature or announcement a launch. Copy + Video + Amplification. Nail this and you'll be trending on Twitter for a week. 2. Making good taste your differentiator. Anyone can launch anything, so what stands out is how you package and talk about it. 3. Doing so much organic storytelling that people are already warmed up by the time they see your ads on Meta & Google, or your launches. 4. Running paid ads early on at any budget and letting Meta find and funnel in your customers for you. 5. Being omnipresent. The era of "just focus on one channel" is dead. Every company doing $10M+ is everywhere, all the time. What did I miss that's working for you?
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I haven't used Claude Code or Codex CLI directly in 3 weeks. But I haven't stopped building. Instead, my lead Grok @bot, Porter, acts as my chief of staff. He delegates to specialist Grok bots, which use Claude Code, Codex and Cursor on my behalf. For the first couple of hours each day, I often don't even open my laptop. I talk to Porter on my phone while having coffee, going for a walk, or working out. Mostly through voice calls or dictation with @FluidVoiceApp. There are still plenty of rough edges to work out, but I really like this way of working. It seems clear that we're moving toward a world where we spend less time operating AI tools directly and more time directing agents that operate them for us.
🤖 Made with AI
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AI is very cool, but have you tried teaching your 4 year old daughter how to mountain bike?
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I use AI every day and it still feels magical. It analyzed and consulted with me on months of fitness + health data, instantly. But then it also collaboratively built me a new program and saved me hours of data entry into @HevyApp with a single tap 🪄
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This is great. I've been using my team of Grok bots a lot more the last few weeks. I've taken it from helpful on a narrow set of tasks, to my own personal team I'm not sure I could live without.
Grok Bot is now one step closer. Set it as your iPhone's Action Button and press it to talk with Bot.
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Danny Halarewich retweeted
just met a guy in miami who switched from crypto to data broker it’s over
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I got complacent and trusted @ChatGPT on the width of tubeless rim tape to buy (too wide) instead of measuring. And people use it for therapy and relationship advice. I was a meat proxy to my credit card
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I'm making $10.2M / month right now going to backcountry lakes, creek mouths & that one culvert under the logging road and brokering trout data to AI labs. Was a generational opportunity to start a company like this during late August - start of October (the fall bite) but the window hasn't closed yet. Demand is outrunning what one guy with a rod can supply, so I'm bringing on a select few hundred more people and splitting the spread. All you have to do is DM me your secret fishing spots. GPS pin and which fly you caught them on. That's it. Labs pay a premium for water nobody's fished yet so please don't tell anyone besides me. LFG 🎣
A friend of mine is making $10M / month right now going to restaurants, hotels & construction companies in New York and brokering their data to AI labs. Was a generational opportunity to start a company like this during late August - start of October. Seems like this inefficiency is about to be aggressively corrected by companies like Kled.
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Danny Halarewich retweeted
We were able to fine tune an open weight model (Qwen3.5-9B) on proprietary internal data at @coinbase, and it out performed frontier models, at much lower cost and speed, for a specialized task (fraud prevention in this case). I think we'll see more of this pattern inside companies. The frontier models are amazing generalists. But increasingly you'll see specialist models out perform on more narrow tasks, either working on teams, or by themselves. We're making it easy to fine tune models internally for our employees. We even have a skill for it in our internal harness that makes it easy to spin these up and start training them: "/fine-tune-and-serve-llm I want to fine-tune Qwen for payments risk review. help me get started" I imagine we'll have some backend services that could be replaced entirely by this new architecture.
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It's more important than ever to occasionally disconnect and go touch grass.
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BS larp for various obvious reasons. But textbook example of a successful X scam amplified by the algorithm.
this tweet has made me roughly $2.8m so far. I cannot put into words how lucrative this space is. key players from almost every frontier lab is now asking for data. and data providers from every neolab is now selling theirs to me. i'm sitting right in the middle. there is so much money to be made. lock in for 3 month to never have to lock in again. you are so early to this opportunity.
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Beautiful
For years, maybe a decade, I've wanted to build a writing tool that just did a few things I couldn't find anywhere else. A system that mimicked how I think when I write. A system that provided clear affordances, features, and places to do the things I wanted to do. A way to play with my writing as I'm writing it. A way to settle into just the right way to say something. It never made sense to make it a 37signals product because it's not commercially viable, nor would it be worth pulling people off their other work to hack on this. Plus, it would have taken months the old way. So this weekend I just made it myself, with Claude's help. It's called Write_On and the short video walks you through it. Essentially it's "alternative control" at the word, sentence, and paragraph level, plus a way to dim stuff back, and stash stuff near by. Not version control, but alternative control. You'll see what I mean when you watch the video below. So here it is. Write_On.
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CC mods ChatGPT plugin extensions Pi 1.0 OpenCode 2.0 DeepSeek desktop What else is going on in Harness Land?
You can now mod Claude Code: - Change how it behaves - Customize the UI - Swap in your own features Write one with a few lines of TypeScript, or have Claude build it for you. Mods ship inside plugins, so you install them with /plugin in the CLI or desktop app. A few examples:
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One interesting part that isn't just CLI calls is what the harness does with the output. What gets written back into the next prompt, what compaction throws away, and whether anything actually checks the command succeeded. Been curious how harnesses do this differently
Remember: "Agentic" and "Harnesses" are (mostly) just giving little LLM calls tools like bash/powershell and web search. And sending them off on a quest. Skills: are just prompts in a folder, maybe with some scripts or a reference output. It's not magic. If you watch harnesses work... what are they doing? command-line calls. Thousands of them.
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