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John Farrell

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Articles

Build vs. buy in 2026: how a solo dev replaced 6 SaaS tools with ~$100/mo of AI

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By John Farrell
| DEV Community
Cross-posted from pheidi.training. This is the dev cut — same decisions, more code and auth detail. Most build-vs-buy advice is stale. For most of my career, "don't roll your own X" was just true: engineering time was the bottleneck, so you rented anything that wasn't your core product. In 2026 the bottleneck moved. A focused feature that was a week of typing is now an afternoon of prompting and reviewing. So I started re-running the calculation, and I keep landing on build.
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Su1548 DIAGNOSTIC ACCURACY OF FECAL CALPROTECTIN ACROSS GASTROINTESTINAL DIAGNOSIS WITH INFECTION

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By John Farrell
| Gastrointestinal Endoscopy Verified
Also available on ScienceDirect
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My Five Favorite Books: John M. Farrell (Corporate Counsel at Keurig Dr Pepper)

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By John Farrell
| The Texas Lawbook Verified
Publisher’s note: The Texas Lawbook is pleased to offer this column in partnership with Texas-based Half Price Books sharing our readers’ favorite reads. “My Five Favorite Books” will publish every other Wednesday. Please email brooks.igo@texaslawbook.net for more information. Did you know reading is a competitive sport? I did not either. That is, not until 4th grade when Ms. Duncan told the class that we were required to turn in book reports for at least 12 different books off the reading list.
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