One teardown every Tuesday. Something solo operators get pitched, rebuilt with the AI I already pay for: what it costs, what I built, what it cannot do, and a verdict.https://solobuilt.ai/en-usSoloBuilthttps://solobuilt.ai/newsletter/i-bought-my-own-product-to-see-what-my-ai-couldnt-check/https://solobuilt.ai/newsletter/i-bought-my-own-product-to-see-what-my-ai-couldnt-check/I bought my own Meeting Intelligence Kit like a real customer would, and found a welcome-email gap that had been live for 51 days. Three connected systems each did their job correctly. The seam between them is where the customer fell through.Tue, 11 Aug 2026 00:00:00 GMThttps://solobuilt.ai/newsletter/my-multi-agent-setup-couldnt-finish-the-job-twice-in-one-week/https://solobuilt.ai/newsletter/my-multi-agent-setup-couldnt-finish-the-job-twice-in-one-week/Twice this week, a handoff between two AI systems stalled out instead of finishing the job. One cost four days before I caught it. Here's what actually fixed it, and the reusable check that catches it next time.Tue, 04 Aug 2026 00:00:00 GMThttps://solobuilt.ai/newsletter/zero-dollars-a-month-for-the-site-youre-reading/https://solobuilt.ai/newsletter/zero-dollars-a-month-for-the-site-youre-reading/I fixed a font-loading bug on the site you're reading right now, on a stack that still hasn't cost me a dollar to run. Here's what broke and the prompt to build your own.Tue, 28 Jul 2026 00:00:00 GMThttps://solobuilt.ai/newsletter/the-file-that-tells-me-to-stop-building/https://solobuilt.ai/newsletter/the-file-that-tells-me-to-stop-building/I spent two days building a mission-control dashboard for my one-person business, then froze it and went back to running my day off a single page of plain text. Here's the file, the one question that keeps me on the real work, and the prompt I use to kill my own shiny objects.Tue, 21 Jul 2026 00:00:00 GMThttps://solobuilt.ai/newsletter/my-content-team-is-a-text-file-and-a-cron-job/https://solobuilt.ai/newsletter/my-content-team-is-a-text-file-and-a-cron-job/I built a pipeline that scans YouTube, ranks topics by who I'm writing for, and drafts my blog, Substack post, and Note before I wake up. This week it produced the first drafts of two published posts. I just edited them.Tue, 14 Jul 2026 00:00:00 GMThttps://solobuilt.ai/newsletter/the-inbox-kit-that-found-a-phone-call-id-dropped-for-twelve-days/https://solobuilt.ai/newsletter/the-inbox-kit-that-found-a-phone-call-id-dropped-for-twelve-days/I tested Kit #3's actual workflows on my own inbox before selling it. One came back almost silent. The other found a commitment I'd forgotten I owed someone for twelve days.Tue, 07 Jul 2026 00:00:00 GMThttps://solobuilt.ai/newsletter/deleted-my-launch-date-and-counted-to-four/https://solobuilt.ai/newsletter/deleted-my-launch-date-and-counted-to-four/My membership had an August launch date. I deleted it and wrote a number in its place: 50 subscribers before launch. Then I checked the current count. Four, and one of them is me.Tue, 16 Jun 2026 00:00:00 GMThttps://solobuilt.ai/newsletter/two-months-in-a-folder-three-evenings-to-launch/https://solobuilt.ai/newsletter/two-months-in-a-folder-three-evenings-to-launch/My first product sat finished in a folder for two months while I waited to feel ready for the launch infrastructure. I treated the launch as a checklist instead of a department and shipped it in three evenings, for the price of a one-dollar test purchase.Tue, 09 Jun 2026 00:00:00 GMThttps://solobuilt.ai/newsletter/the-audit-that-found-three-processes-that-werent-running/https://solobuilt.ai/newsletter/the-audit-that-found-three-processes-that-werent-running/I read one line about how AI memory works, then audited the three files my assistant loads before every session. They were three to four times heavier than they should be, and trimming them surfaced three processes I thought were running but weren't.Tue, 02 Jun 2026 00:00:00 GMThttps://solobuilt.ai/newsletter/the-dashboard-that-found-two-projects-i-was-running-twice/https://solobuilt.ai/newsletter/the-dashboard-that-found-two-projects-i-was-running-twice/I built a stalest-first view of every open project in my vault and immediately discovered I was running the same onboarding initiative as two separate workstreams.Tue, 26 May 2026 00:00:00 GMThttps://solobuilt.ai/newsletter/why-legal-reads-my-sales-enablement-newsletter/https://solobuilt.ai/newsletter/why-legal-reads-my-sales-enablement-newsletter/I built an AI workflow to cut 90 minutes off weekly newsletter prep, and somehow ended up with half the company on the distribution list.Tue, 19 May 2026 00:00:00 GMT