bookmarks

@mitchellh

Mitchell Hashimoto · 229,682 followers

Co-founder of @Superlogical. Creator of Ghostty. 👻 Prev founded @HashiCorp, created Vagrant, Terraform, Vault, and others.

13 bookmarks

View all →

I can’t stress enough how little an idea matters compared to the agency of the people executing the idea. I have had the privilege of knowing and sometimes even working with some of the most successful people (by various metrics). The difference between mediocre and excellent…↗

Defining Taste “Taste” is the ability to consistently make high-quality qualitative judgments where no objective metric exists. It’s the creation of something that feels right intuitively, with no real justifiable way to measure that. But when you do it, people feel it. A perso…↗

My heuristic is that any diff an agent generates over ~1500 lines is too big and is indicative that the problem needs to be decomposed. This is my general pattern now for feature work: 1. Try to implement the whole feature, loosely guided. I call this the "draw the owl" prompt i…↗

Fork your dependencies, trim them to only your use case, never update unless it breaks for your users. I’ve been vocal about this for 10+ years. I’ve always said that updating is way riskier than latent bugs (which can be tracked and CVEs monitored). If you are updating a depen…↗

I strongly believe there are entire companies right now under heavy AI psychosis and its impossible to have rational conversations about it with them. I can't name any specific people because they include personal friends I deeply respect, but I worry about how this plays out. I…↗

·@mitchellh·May 15, 2026·essay·ai·mtbf·mttr·reliability-engineering

Ghostty is leaving GitHub. I'm GitHub user 1299, joined Feb 2008. I've visited GitHub almost every single day for over 18 years. It's never been a question for me where I'd put my projects: always GitHub. I'm super sad to say this, but its time to go. …↗

·@mitchellh·Apr 28, 2026·news·ghostty·github·open-source

The Building Block Economy 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. Ghostty in 18 months: one million daily macOS update che…↗

Here’s what I’d do if I was in charge of GitHub, in order: 1. Establish a North Star plan around being critical infrastructure for agentic code lifecycles and determine a set of ways to measure that. 2. Fire everyone who works on or advocates for copilot and shut it down. It’s…↗

A little devlog video, status update, feature tour of the search feature on macOS, wherein I also show (and also discover live) some of the quirks of the way other terminals do search.↗

·@mitchellh·Nov 26, 2025·demo·devlog·macos·search·terminals

What's missing? (Serious, soliciting feedback). Even if you don't use Shortcuts, what do you wish you could automate with a terminal that isn't present here?↗

·@mitchellh·Jun 19, 2025·essay·automation·feedback·shortcuts·terminal