Mitchell Hashimoto✓

Mastodon @mitchellh@hachyderm.io

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Make a deal with Mitchell Hashimoto

🔒 Paid proposals held safely in escrow — released only when the work's approved.

Followers

8.6K

Account age

3 yrs

🧰 Free analysis for Mitchell Hashimoto

🕵️ Fake follower check 📊 Engagement rate 💰 What they charge

Known for

I've got a pure Swift Metal renderer and bindings for libghostty-vt. This will enable libghostty users to basically drop a package into their Swift/Xcode projects and get a full blown terminal (emulation, rendering, or both). Coming soon...
Note that Ghostty itself has always been Metal-rendered on macOS, but Ghostty has a really complicated generic renderer and font subsystem meant to work across

87 views I've got a pure Swift Metal renderer and bindings for libghostty-vt. This will enable libghostty users to basically drop a package into their Swift/Xcode projects and get a full blown terminal (emulation, rendering, or both). Coming soon... Note that Ghostty itself has always been Metal-rendered on macOS, but Ghostty has a really complicated generic renderer and font subsystem meant to work across

LLVM21 is a stinker and has worse codegen in general, and a bug forced disabled loop auto-vectorization. Turned out to be a blessing: we clearly identified areas we were over-reliant on implicit compiler optimizations and were able to explicitly restructure our code to what we really wanted.
The result is that we now have clean generic SIMD subroutines in places we previously relied on auto-vector

21 views LLVM21 is a stinker and has worse codegen in general, and a bug forced disabled loop auto-vectorization. Turned out to be a blessing: we clearly identified areas we were over-reliant on implicit compiler optimizations and were able to explicitly restructure our code to what we really wanted. The result is that we now have clean generic SIMD subroutines in places we previously relied on auto-vector

📊 Post engagement

285

Avg engagement / post

3.3%

Engagement vs followers

Dec 2022

On Mastodon since

🔥 Top post: I strongly believe there are entire companies right now under he · 2.2K likes + reposts

📊 Activity & format

Posting cadence

1.1 / week

A lower-frequency account — each post lands with more weight.

Content mix

Mostly text

Recent: 10 text · 2 image · 0 video.

Follower / following

153×

Follows 56 back. A strong ratio — an audience that follows them, not a follow-for-follow network.

Recent posts

View on Mastodon ↗

🔥 Top post 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… ★ 2.2K

LLVM21 is a stinker and has worse codegen in general, and a bug forced disabled loop auto-vectorization. Turned out to be a blessing: we clearly identified areas we were over-reliant on implicit compiler optimizations and were able to expl… ★ 21 lol. Someone really tried arguing with me that Ghostty shouldn't be compressing its scrollback because "operating systems already compress their memory." Well, I responded politely: Lots of reasons to do this in the app. 1. Operating syste… ★ 66 Btw just to follow up with this in the interest of intellectual honesty, I've been told (and verified myself) that libvte compresses its scrollback on disk (but it streams everythign out to disk rather early). So it effectively has this fe… ★ 12 Ghostty is getting automatic scrollback compression, resulting in 70 to 90% less physical memory usage. It happens incrementally when idle, so it had no measurable effect on IO throughput. I'm not aware of any other mainstream terminal tha… ★ 157 One of the changes made to improve Ghostty IO throughput was to introduce a new IO gather thread, bringing our total thread count to 3 per terminal instance. Under heavy IO load, this keeps our VT processing working at nearly full bandwidt… ★ 48 Ghostty is now indisputably the fastest terminal emulator at IO throughput, by a very large margin. On ASCII, Unicode, and CSI tests, Ghostty is more than 2x (double!) faster than any other leading "fast" terminal. These changes are direct… ★ 114

I've got a pure Swift Metal renderer and bindings for libghostty-vt. This will enable libghostty users to basically drop a package into their Swift/Xcode projects and get a full blown terminal (emulation, rendering, or both). Coming soon..… ★ 87 My family is donating another $400,000 to the Zig Software Foundation. Zig is exceptional software. I use AI every day. Zig has one of the strongest anti-AI policies in open source. We disagree on some things, but respect doesn’t require a… ★ 280 Our family grew yesterday to 2 kids! A healthy baby boy and healthy wife post labor. ❤️ ★ 283 AI slop is good, actually. Slop is what enables fast parallel experimentation. The etiquette and skill is understanding the boundaries of where slop exists and the extent to which it should be cleaned up and how. A few examples: I’m workin… ★ 121 Love this post by Antirez on developing Redis Array support. Its a great showcase of thoughtful AI usage and how AI can empower even the best developers while still producing high quality work. https://antirez.com/news/164 ★ 34

🐘 Community & instance

Home server

hachyderm.io

A tech & engineering server — its members and audience skew toward that niche, so expect a community-aligned, engaged following.

✅ Link-verified

Verified link

Proved ownership of a website linked on their profile — Mastodon's green-check verification, a real identity signal rather than a paid badge.

On Mastodon since

Dec 2022

Joined in the Twitter-exodus wave of late 2022 — part of the migration that made Mastodon a real destination.

💡 Facts

🗓️Joined Mastodon in 2022 — 3 years ago.

👁️Averages 285 views per post.

📤Posts about 1.1× per week.

🕵️ Fake follower check

Estimated

95/100

Excellent Credibility score

99%

Real Real audience

Low Fake-follower risk

High Data confidence

Est. 99% real, active audience · Low fake-follower risk.
Strong engagement (~3.3% of followers engage each post) — an active, real audience.
Organic base — far more followers than accounts it follows.
Verified account.
Established account (3+ years old).

Heuristic estimate from engagement, follower ratios, account age & growth — a screening signal, not a guarantee.