Summary

Mitchell Hashimoto argues that the most effective path to software adoption has shifted from building polished mainline applications to creating high-quality building blocks that others assemble. He illustrates this with Ghostty's growth: the app reached one million daily update checks in 18 months, while libghostty reached multiple millions of daily users in just two months. AI agents are accelerating this shift by excelling at gluing together proven components, lowering the barrier to entry that previously limited the ecosystem. The positives include lower quality bars for derivative works, outsourced R&D, reduced maintenance burden, and greater awareness in niche communities. He acknowledges that closed-source commercial software is at a disadvantage as AI agents prefer open and free alternatives. Rather than fighting or fully submitting to this shift, Hashimoto advocates for pragmatically embracing the building block economy.

Key Insight

In the age of AI-driven software assembly, the highest-leverage strategy is to build high-quality open building blocks rather than polished applications, because agents and developers alike prefer proven components they can glue together.

Spicy Quotes (click to share)

• 6

  The most effective way to build software and get massive adoption is no longer high quality mainline apps but via building blocks that enable and encourage others to build quantity over quality.

• 5

  AI is okay at building everything from scratch, but it is really good at gluing together high quality, well documented, and proven components.

• 5

  The natural barrier to entry of understanding the component pieces well enough to even slap them together was high enough to limit the ecosystem. This barrier is now gone.

• 6

  You can argue that 99% of the stuff coming out of these factories is total crap, but you can't argue the sheer quantity of stuff coming out.

• 5

  It is so much easier now as a maintainer to look at what others are doing, see working proof of concepts, and decide what you want to bring back to mainline. There's way less talk and way more walk.

• 6

  Agents will more readily pick open and free software over closed and commercial. At the time of writing this article, this is an objective truth.

• 6

  We have to accept that building blocks and software factories rule everything around us and accept and internalize the consequences of that.

• 5

  The point is the shift has already happened. We're living in it.

Tone

reflective, pragmatic, opinionated