1. X
  2. Mitchell Hashimoto
Log inSign up
Mitchell Hashimoto
Superlogical
40.6K posts
Mitchell Hashimoto profile banner
user avatar

Mitchell Hashimoto

Superlogical
@mitchellh
Co-founder of @Superlogical. Creator of Ghostty. 👻 Prev founded @HashiCorp, created Vagrant, Terraform, Vault, and others.
Los Angeles, CA
mitchellh.com
Joined January 2008
150
Following
221.7K
Followers
RepliesRepliesArticlesArticlesMediaMedia
  • user avatar
    Mitchell Hashimoto
    Superlogical
    @mitchellh
    Aug 14
    A couple more notes on this: First, the xterm.js benchmarks were very noisy. A lot of the results relied on whether they got lucky with the V8 JIT/inliner. e.g. the frame times for ASCII ranged from 20us to 100us (!!!). For the purpose of optimism, I only used the fastest times
    user avatar
    Mitchell Hashimoto
    Superlogical
    @mitchellh
    Aug 14
    libghostty for WebAssembly got a lot of love recently and is now very, very, very good. I spent the day building harnesses and comparing to xterm.js and here are the results: faster at IO, faster at reflow, faster at rendering. Like, a lot a lot faster. We now provide pre-built
    Image
    Image
    Image
    Image
  • user avatar
    Mitchell Hashimoto
    Superlogical
    @mitchellh
    Aug 14
    libghostty for WebAssembly got a lot of love recently and is now very, very, very good. I spent the day building harnesses and comparing to xterm.js and here are the results: faster at IO, faster at reflow, faster at rendering. Like, a lot a lot faster. We now provide pre-built
    Image
    Image
    Image
    Image
  • user avatar
    Mitchell Hashimoto
    Superlogical
    @mitchellh
    Aug 14
    Look how good these themes are. They permeate through the app plus into the terminal. We built out a set of 41 fully original human designer curated themes. We also built a full in browser theme editor. The plan is to open source with a permissive license and package them all
    user avatar
    almonk
    Superlogical
    @almonk
    Aug 14
    It's Friday, lets talk about themes. For @superlogical we've created a suite of 41 original themes for both light and dark modes that are portable across all our clients. Themes tint not just the ANSI terminal colors, but the entire application chrome.
    Image
    00:00
  • user avatar
    Mitchell Hashimoto
    Superlogical
    @mitchellh
    Aug 13
    I'm so incredibly tired of seeing low-effort AI-designed web pages. I basically bounce off any new product immediately when I see it (never get a chance to judge the product itself). Lots of thin lines, glowy styles, inconsistent fonts, lots of monospace. You know who you are.
  • user avatar
    Mitchell Hashimoto
    Superlogical
    @mitchellh
    Aug 12
    A form of Conway's law: high quality internal tools lead to high quality external tools. Here's Hector showing our internal dev tool we use to build our deck icon sets, including publishing the icons.
    user avatar
    Hector Simpson
    Superlogical
    @dizzyup
    Aug 12
    Making dev tools for our dev tools. 'Super Icon Studio' is how I've been designing the icons for our 'Deck' icon groups - it covers design finish across light/dark modes, layout compositions, animations, an icon catalogue, and ships as a highly customizable Swift package ready
    Image
    00:00

Log in or sign up for X

See what’s happening and join the conversation

Continue with phone
or
Log in with username or email
Terms·Privacy·Cookies·Accessibility·Ads Info·© 2026 X Corp.
Advertisement
Advertisement