Launch week · prices move Sunday at midnight UTC

Three field guides.
$9 each.

We just published three editorial field guides — one each for traders, for people doing behavior change, and for AI builders. Each is the compiled, curated, offline-readable version of work originally published free on the blog. Each is ~5,500 words across four essays.

Launch pricing is $9 through Sunday. From Monday they go to $14 permanently. The honest reason to buy now is the price moves — not a fake countdown, the real announced change.

The three

№01

The Algo Trader's Playbook

Why retail algo trading systems blow up at month four — and the architecture that survives. Four essays. The patterns institutional desks use. The lies backtests can't simulate. The platforms that actually deliver versus the ones that don't.

  • ~5,500 words, four essays, one weekend
  • Names six specific failure modes most retail builds skip
  • Honest comparison of TradeStation, NinjaTrader, MultiCharts, QuantConnect, TradingView, FlowiAI Trader

For: Retail traders who hit drawdown they can't survive. Builders shipping AI trading bots.

$9$14 through SundayGet it →
№02

The Behavior Change Playbook

Why most recovery apps fail at month three — and the relapse-aware architecture that works. Four essays. The Abstinence Violation Effect. The discipline-app paradox (more apps → worse outcomes). The apps actually built on Marlatt's research.

  • ~5,500 words, four essays, one sitting
  • Names the single cognitive distortion that destroys 70% of recovery attempts
  • Honest comparison of Habitica, Streaks, Brick, Fortify, Woyuduin

For: Anyone fighting a compulsive habit who has tried 3+ apps and watched them fail. Builders working on habit, focus, or recovery products.

$9$14 through SundayGet it →
№03

The AI Builder's Field Guide

What shipped in AI this month — and what the production patterns mean if you're building agents. Four essays. The triage shift Mozilla just published. OpenAI's vetted-defender tier. What actually shipped at Code w/ Claude 2026. The books worth reading.

  • ~5,500 words, four essays, one weekend
  • Names the bottleneck pattern across every production-grade AI system right now
  • Honest review of Huyen, Pai, Alammar — and the gap none of them fills

For: Engineers shipping AI agents to production this year. CTOs choosing where to invest engineering hours.

$9$14 through SundayGet it →

A note from the desk

Why launch pricing, why a real change.

These field guides exist because the essays inside them were good enough that several readers asked for a downloadable, ad-free, offline version. The compilation work — typesetting, layout, editorial pass, PDF rendering, hero images — took a real week. $9 is calibrated for the value of the curation work, not the cost.

The price moves to $14 on Monday because it's an honest reflection of what the next batch of readers will pay once the launch attention fades. Early buyers help validate that the format works and pay back the production week. That's the deal, plain.

Every page on this site, including this one, is hand-written and hand-edited. No content mills, no AI-generated filler, no scraped summaries. If you buy one of these and it doesn't deliver what you came for, send the receipt and a one-line note to hello@useflowi.app and we refund — no form, no hoops.

Reading all three

$27 for the set.

Some readers will sit at the intersection of all three (the trader working on focus, the AI builder thinking about their habits). For them: just buy all three above. $27 total. The set covers about 16,500 words of curated work across the three domains, one weekend per guide.

No combined-bundle SKU yet — the simplest version is three individual purchases. Saves us writing more code; saves you waiting for it.

Not buying today?

Get the free monthly Dispatch.

Once a month, ten editorial pieces on what shipped in AI and the patterns that matter — trading, behavior, builders. Free. The next edition lands on the first of the month.

Or read what we've already published — the essays in the guides are individually available there, free.