jdx
@jdxcode

I make open source dev tools at entire.io like mise, aube, fnox, hk, mbx, pitchfork. Previously I wrote the heroku cli and oclif. ex-amazon/meta.

 Dallas, TX
jdx.dev
Joined July 2006
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jdx
@jdxcode
Aug 27
this was awesome @dhh
Lex Fridman
@lexfridman
Aug 26
Here's my conversation with @DHH. He is back for round 2! It was an epic fun 5 hour conversation about the future of programming, AI, Linux, and human civilization. It's here on X in full and is up everywhere else (see comment). Timestamps: 0:00 - Episode highlight 1:27 - Introduction 2:56 - Programming with AI agents 18:14 - How software will change 27:30 - AI impact on open source 37:21 - Building Omarchy Linux distro 47:05 - Vibe coding vs agentic engineering 1:00:06 - The end of manual programming 1:10:24 - Advice for programmers 1:22:30 - Surviving Internet Hate 1:31:46 - Programming setup for AI Agents 1:44:11 - Obsessing about speed 2:07:06 - Voice prompting vs typing 2:21:05 - Best AI coding models 2:37:55 - Best AI coding harnesses 2:50:57 - AI video generation and filmmaking 3:10:28 - Fatherhood 3:38:35 - Linux will win the desktop 3:49:51 - PewDiePie 3:59:24 - Future of programming 4:22:17 - Politics and immigration 4:53:54 - Longevity, over-optimization, and fear of death 5:05:38 - Eternal recurrence and future of human civization
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my riff on @georgekobaidze's awesome github template github.com/jdx dev.to/georgekobaidze/i-turn…
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here's my plan for moving the industry off of using curl|sh for anything: github.com/jdx/packslip/disc…

Replacing curl | sh with a distribution-packaged verifier · jdx packslip · Discussion #151

TL;DR: Package managers such as mise, rustup, uv, and pnpm need a way to bootstrap their upstream releases without requiring another package manager beyond the one their distribution already provid...

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the anthem for everyone struggling with cargo's 100gb+ target/ directories from rust git worktrees: pray silence for mr-boxington 📦🍓 github.com/jdx/mr-boxington
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jdx retweeted
Jonathan Ellis
@spyced
Oct 2
Created "btop for io", inspired by "why the hell is cargo so slow on btrfs" Top: all volumes showing bytes/s, iops and r + w latencies, diamond marks p99 Bottom: reads and writes detail view for a single volume github.com/jbellis/iodyne
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i am planning to change the install directory layout in mise. there are good sec hardening/perf/functionality reasons for doing this. if you think this might affect you please have a look: github.com/jdx/mise/issues/1… this will be done with a slow rollout and it should be backwards compatible but it's also a pretty fundamental change. sorry if the issue is a bit slop, i will be working to fix that today. i would encourage you to have your agent look at it and compare it to your mise setup to see what it thinks rather than just reading it.

Install layout: full-named, hash-addressed installs, and verifying cached installs · Issue #13678 ·...

Summary mise installs tools into installs//. That path can't say which backend made an install or which locked artifact it came from, and this now matters for two re...

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it's true. i built hk at lastjob for this reason—saved loads on CI usage by having pre-commit hooks that are fast enough engineers don't skip them.
Ohorai
@OhoraiWay
Sep 29
Replying to @p_ch
Pre-commit hooks could also help catching faulty runs.
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every page in the hk.jdx.dev docs is now translated into pirate for "Sea shanty mode"
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🎶 I got my miiiiiiise 🎶 piped.video/_k-tLPga-Yg?is=FyJC…
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and yes when i was tufting i accidentally grabbed the wrong shade of red yarn
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Your target/ dirs are eating your disk, especially with coding agents in git worktrees. mr-boxington (mbx) is a Cargo build cache that cleans up after itself: 3.9 TiB pruned on my dev box in 3 weeks. New in 1.21: cargo clippy + cargo build side by side, zero config 👇
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Builds share one CPU and memory budget, so several agents running cargo at once don't bury the machine. You get a live hit/miss view with time saved, and there's no daemon or server to run.
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Try it with mise (2026.9.2+): mise use --tool-option mr_boxington=true rust mr-boxington Plain cargo commands then go through mbx. mr-boxington.jdx.dev

A shared cache for Cargo builds | mr boxington

Reuse compiler work across Rust worktrees and CI without changing how you use Cargo.

mr-boxington.jdx.dev
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now that's a switch worth flipping
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i made a sea shanty version of my hk video
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piped.video/watch?v=_k-tLPga…
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one of the reasons i changed the name of mise from "rtx" was that I was concerned nvidia might tell me i had to. though in hindsight, rtx was just a terrible name anyhow and renaming was definitely the right call.
David Cramer
@zeeg
Sep 28
Idk if it infringes on ours or not, but I do know there are a variety of sentry names and the trademark area is very sus At the minimum it’s pretty unprofessional from nvidia
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Replying to @jdxcode
I've just added mr boxington to the harness I'm making and it went from 94s to 1s. Thank you, Jeff! github.com/krowkcom/krowk/pu…

chore(build): share compiled dependencies across worktrees and CI with mbx by elvinaspredkelis ·...

Turns on mr-boxington (mbx), a shared Cargo build cache, so a dependency compiles once and every checkout (each worktree, and CI) reuses it instead of compiling its own copy. Benchmarks The same co...

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