Mitchell Hashimoto (@mitchellh) / X

Mitchell Hashimoto

40.5K posts

Mitchell Hashimoto

@mitchellh

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

Los Angeles, CA

Joined January 2008

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Mitchell Hashimoto
@mitchellh
18h
Let's talk a bit about what makes the Superlogical multiplexer different architecturally from traditional terminal multiplexers! There's a lot (a LOT) more coming, but wanted to share a little bit about the terminal-specific part compared to tmux and zellij.
00:00
Mitchell Hashimoto
@mitchellh
22h
The Ghostty non-profit has signed our first long-term paid contributor via a 12-month agreement with @vancluever. He's a top-quality engineer, has been part of the Ghostty community for years, and has consistently demonstrated an extremely high quality and judgement bar. He is
Mitchell Hashimoto
@mitchellh
Jul 29
I've started a new company: @superlogical! We're going to begin by building a terminal multiplexer. The entire vision is much larger, but the multiplexer is the foundation. Sign up for the newsletter to get beta access and devlogs (product updates only I promise).
An announcement from Superlogical
From superlogical.com
Mitchell Hashimoto
@mitchellh
Jul 27
Btw this is why computer science matters. Yes, you can self teach it if you really want to (I personally wouldn't have had the discipline, so college was a way better force). However you learn it, the theoretical fundamentals matter and get applied to work every single day.
Mitchell Hashimoto
@mitchellh
Jul 27
If you're interested in "how" or "why": the major culprit is that each row in Alacritty has 32 bytes of metadata and each cell is 24 bytes. In Ghostty, every row and cell is represented by exactly 8 byte each. How do we do this? The first major culprit is styles. Alacritty
Mitchell Hashimoto
@mitchellh
Jul 27
If you're interested in "how" or "why": the major culprit is that each row in Alacritty has 32 bytes of metadata and each cell is 24 bytes. In Ghostty, every row and cell is represented by exactly 8 byte each. How do we do this? The first major culprit is styles. Alacritty
Mitchell Hashimoto
@mitchellh
Jul 27
libghostty vs. Alacritty (alacritty_terminal crate) memory usage. This tests pure terminal state with various payloads: empty screen, full screen, 10K row scrollback with plain text, unicode, heavy styling, and mixed. This is the most accurate read to what an embedder sees. So,
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