Graham Christensen @grhmc Twitter profile

Last Seen Profiles

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@megrobs11

Graham Christensen

@grhmc

16 days

My neck. My back.

Alireza Bashiri

@al3rez

17 days

What stops you from working 4 hours straight in a coffee shop?

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Graham Christensen

@grhmc

1 year

Every so often I remember shell’s line-continuation character “\” is “just” escaping the newline that comes next in the bytes and I lose some brain cells.

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Graham Christensen

@grhmc

5 months

average rust developer reading the average blog post about base64 in rust

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Graham Christensen

@grhmc

2 months

ceiling is being raised. cursor's copilot helped us write "superhuman code" for a critical feature. We can read this code, but VERY few engineers out there could write it from scratch.

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Graham Christensen

@grhmc

4 months

Meet Io.

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Graham Christensen

@grhmc

7 months

Question for men: I recently found out that some men think about broken dependencies at least once a day. Like a library that changed its api. Or a program, broken on Apple Silicon. Menfolk, do you all do this?

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Graham Christensen

@grhmc

1 month

Incredible. And by pure luck, NixOS isn’t vulnerable.

Kat 2fragz Cosgrove

@Dixie3Flatline

1 month

xz/liblzma appears to include a backdoor that allows for SSH server compromise yike

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Graham Christensen

@grhmc

1 month

for all the trans women in Rust, you'd think there'd be a little less <T>

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Graham Christensen

@grhmc

8 months

When is someone going to deliver what everyone wants, and make sqlite a column type in postgres?

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Graham Christensen

@grhmc

6 months

What's the catch with Amazon Coupons? Why do I need to tick this box to get $5 off, what am I giving up? In what way is this customer-obsessed?

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Graham Christensen

@grhmc

4 months

One of my favorite feature requests ever reported: closing multiple blocks by repeating “n” in end. Like ennnnnd.

Graham Christensen

@grhmc

4 months

@johncodezzz

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Graham Christensen

@grhmc

8 months

This step of installing Ubuntu Server is slick.

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Graham Christensen

@grhmc

11 months

Thinking about that time NixOS was accidentally creating multi-megabyte shebangs: In one case I saw, the shebang was 35 megabytes due to some funny quadratic behavior.

The case of the supersized shebang

Regressions are an unavoidable side effect of software development; the kernel is no different in that regard. The 5.0 kernel introduced a change in the handling of the "#!" (or "shebang") lines used...

lwn.net

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Graham Christensen

@grhmc

5 months

As a younger engineer who’d just read Clean Code, I distinctly remember a point where I was afraid to have code that did the interesting thing. I’d tie myself in knots of ceremony and bullshit to avoid the part that was important and valuable. Tasteless.

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Graham Christensen

@grhmc

1 year

More FOSS software should have telemetry. The developers of that software should feel free to make opinionated choices based on that information to make their software better.

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Graham Christensen

@grhmc

10 months

@Venusonfire1 @hankgreen I agree. That’s why I recommend planning (and implementing) the deaths of your loved ones: so you can book a seat next to each other.

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Graham Christensen

@grhmc

4 months

@christapeterso @iridienne @olivekosheluk If it helps, brown is just orange in context.

Brown; color is weird

You can support this channel on Patreon! Link below This video discusses the color brown. Seriously.That Aging Wheels playlist:https://www.youtube.com/play...

www.youtube.com

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Graham Christensen

@grhmc

11 months

@EoinHiggins_ Unfortunately I didn’t get him to bite.

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Graham Christensen

@grhmc

4 months

Desktop security is decades behind.

Steve Weis

@sweis

4 months

This iMessage exploit is crazy. TrueType vulnerability that has existed since the 90s, 2 kernel exploits, a browser exploit, and an undocumented hardware feature that was not used in shipped software:

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Graham Christensen

@grhmc

6 months

I’ve unfortunately become the guy who writes “what we deliver ➡️ value” on a whiteboard as if it means something. Is the Patagonia vest automatically delivered or do I have to order it?

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Graham Christensen

@grhmc

7 months

I finally did it: I migrated back from Hey to Fastmail. If you were wondering how confident I was in Hey: I never stopped paying for Fastmail.

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Graham Christensen

@grhmc

1 year

`hostname` is a relatively straightforward program without specific performance requirements. And yet it’s source code is a terror. Y’all, we’ve learned things since the old days. We probably SHOULD be replacing the old because it is old.

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Graham Christensen

@grhmc

1 month

@aarondfrancis Buy fewer candles and avocado toast (sigh.)

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Graham Christensen

@grhmc

8 months

@nixos_org This seems a bit reactionary without a policy of how to handle sponsorships. Anduril isn’t going to stop using nixos, and sponsorship presumably doesn’t shape the agenda of the foundation or community. Why shouldn’t they be allowed to be sponsors?

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Graham Christensen

@grhmc

2 months

@jamonholmgren This y looks like it is ready (even begging…) for new components to be slotted in. The old one didn’t have design room for additional components.

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Graham Christensen

@grhmc

2 months

@avaitopiper No. Cookies are limited to 4kb. Probably local storage for offline support.

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Graham Christensen

@grhmc

6 months

Computer people love to setup a fancy mic + boom setup to sound as good as possible, but has anyone considered it'd be more aesthetic and based to sound worse?

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Graham Christensen

@grhmc

1 month

Eric S. Raymond

@esrtweet

1 month

An observation I left out of my earlier thread on the xz back door: Autotools. Must. Die. The complexity and obscurity of autotools build recipes was essential to the way the malicious code was concealed and inserted in the release tarball.

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Graham Christensen

@grhmc

1 year

It is over for this place. Bsky's first discourse and main character is so overwhelmingly unhinged and top tier, this place cannot possibly keep up. Way to go, @IanColdwater .

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Graham Christensen

@grhmc

6 months

@gcouprie Someone should really make a crate for this so we don't need so much code duplication.

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Graham Christensen

@grhmc

2 months

@fasterthanlime as with all questions of this shape, you don’t want to know

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Graham Christensen

@grhmc

2 months

A surreal experience: Opening a brand new Mac straight from Apple, logging in, and seeing Nix already installed. MDM + the Determinate Nix Installer for macOS is brilliant.

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Graham Christensen

@grhmc

4 months

@SwiftOnSecurity Another thing: everything is 2-3x more expensive when it’s 19” wide. And the form factor actually sucks badly for at home use cases unless you truly have A Lot of hardware and are going to overpay for a bunch of shelves and whatnot.

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Graham Christensen

@grhmc

10 months

I see no reason C++ shouldn't make ` ` (a space) an overridable operator.

Lucretiel 🦀

@Lucretiel

10 months

It’s me, I’ve overloaded the comma operator. It’s one of the worst crimes I’ve ever committed. I embedded an entire lisp directly into C++ syntax by using an overloaded comma to assemble s-exprs.

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Graham Christensen

@grhmc

11 months

I love nix + rust + for how quickly I can make and iterate on a prototype service doing complicated things against AWS. Two hours and my non-trivial prototype is done.

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Graham Christensen

@grhmc

10 months

@Venusonfire1 @hankgreen They blocked me! I didn’t even ask to swap seats!

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Graham Christensen

@grhmc

1 month

Popular opinion: now’s the time for heather adkins to open their wallet.

Heather Adkins - Ꜻ - Spes consilium non est

@argvee

1 month

Unpopular opinion: now's the time for us to get serious about measuring open-source projects using SLSA, and getting everyone to Level 4 with mandatory 2-party code reviews.

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Graham Christensen

@grhmc

11 months

Integrating OIDC to verify a request came from a trusted GitHub action run was so easy, it should be table stakes for CI integration tools.

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Graham Christensen

@grhmc

2 months

@bdowney @Max_Somerset @jdcmedlock @William48759211 It may be some random person putting it up. It isn’t hard to make signs like this.

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Graham Christensen

@grhmc

11 months

Little things like really throw sand in things. Microsoft defaulting to IPv6, and VSCode breaking on IPv6 is real right-hand/left-hand energy.

Port forwarding should support IPv6 · Issue #7029 · microsoft/vscode-remote-release

VSCode Version: 1.70.0 Local OS Version: Microsoft Windows [Version 10.0.19043.1826] Remote OS Version: Ubuntu 20.04.4 LTS Remote Extension/Connection Type: Containers Logs: N/A Steps to Reproduce:...

github.com

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Graham Christensen

@grhmc

6 months

hey so is this anything? Get in my @'s if you have any opinions.

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Graham Christensen

@grhmc

5 months

I think this is like @Tailscale 's "A frustratingly simple VPN."

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Graham Christensen

@grhmc

10 months

@NotABigJerk It took me a solid minute to realize he wasn’t being earnest. What a guy.

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Graham Christensen

@grhmc

4 months

Nix, duh.

Christopher Ehrlich

@ccccjjjjeeee

4 months

Which technology is this?

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Graham Christensen

@grhmc

7 months

Folks: Apple's cables are a blatant money-grab Apple:

Jon Bruner

@JonBruner

7 months

The cable is a work of art. 20 separate wires, 10 of them coaxially shielded. The wires and their shields are soldered to the PCBA separately. It’s all protected by a strain-relief fitting that’s crimped in from 8 directions.

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Graham Christensen

@grhmc

4 months

Happy Christmas to the fellow Santa’s out there.

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Graham Christensen

@grhmc

10 months

My father-in-law is a mechanic. He is insanely gifted. We were in a shop together years ago and I asked him what it would cost to build it today. I will never forget his answer… “We can’t, we don’t know how to do it.”

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Graham Christensen

@grhmc

6 months

I'm surprised that a member of the Nix team -- ostensibly aligned on the adoption and stabilization of flakes -- is part of an effort to move away from Flakes in NixOS projects:

remove flake.nix by fricklerhandwerk · Pull Request #761 · NixOS/nix.dev

use niv for dependency management. this follows our own tutorials on writing packages and development shells, and we generally find it is easier to read and work with. co-authored-by: @alejandrosame

github.com

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Graham Christensen

@grhmc

8 months

understandable. understandable.

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Graham Christensen

@grhmc

6 months

Today I have written: * Nix * Rust * Go * C++ * Typescript * Bash * Emails some days just tickle the brain in all the right ways.

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Graham Christensen

@grhmc

1 year

Follow me for more takes on shells, why I adore them, and am simultaneously repulsed. Horrendous but I can’t stop loving it.

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Graham Christensen

@grhmc

8 months

@luciascarlet Honestly, bootstrap was such an important thing for the world. It helped so many places make “pretty ok” pages when they’d have done something insanely bad left to their own devices.

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Graham Christensen

@grhmc

1 year

`ps` should fit in a tweet PID COMMAND 1 init 141 systemd-journald 144 systemd-udevd 150 systemd-resolved 164 agent 219 \_ ps xf 182 systemd-logind 184 systemd-networkd 188 dbus-daemon --system --address=systemd: --nofork --nopidfile --systemd-activation --syslog-only

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Graham Christensen

@grhmc

4 months

Aws for S3 + cloudfront, for everything else.

Darren Shepherd

@ibuildthecloud

5 months

I've been using AWS a lot over the last year and I'm not kidding, we've hit peak AWS and it's essential for the industry to start a "post AWS" phase. It's required for us to continue to innovate.

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Graham Christensen

@grhmc

4 months

@nolanmilnes @jes5199 @flarn2006 Not entirely a coincidence …

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Graham Christensen

@grhmc

1 year

It is wild how quickly writing a set of GitHub Action workflows goes from "eh, it's fine" to a personal hell.

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Graham Christensen

@grhmc

11 months

Got something sick working tonight: 30-50% faster CI runs for #nix on GitHub actions with 1 line of yaml, for free.

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Graham Christensen

@grhmc

10 months

My father-in-law is a senior principal engineer to the CTO. He is insanely gifted. We were together years ago and I asked him what it would cost to build their stack again today. I will never forget his answer… “We can’t, we don’t know how to do it.” Should have used Nix imho.

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Graham Christensen

@grhmc

8 months

"The life-changing magic of using bigger GitHub Actions runners" This one-line diff + configuring it in the web UI cut the deploy time from 18 to 2 minutes: - runs-on: ubuntu-22.04 + runs-on: UbuntuLatest32Cores128G

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Graham Christensen

@grhmc

6 months

It's hard to believe we hit 1,000,000 Nix installs. By the looks of it, we'll be at 2,000,000 before we know it.

Determinate Systems

@DeterminateSys

6 months

A million Nix installations ago, we ditched Bash and debuted the Determinate Nix Installer — written in Rust for maintainability and reliability. To celebrate installing Nix over a million times, we looked at some lessons we've learned along the way.

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Graham Christensen

@grhmc

11 months

"As usual the upgrade was infinitely less painful than any other distro." #NixOS

NixOS 23.05 released

21 comments

lobste.rs

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Graham Christensen

@grhmc

9 months

This morning I saw a project's CI time drop from 4h35m to 50m, and then 4m. For free, without configuration: just using the Magic Nix Cache:

GitHub - DeterminateSystems/magic-nix-cache-action: Save 30-50%+ of CI time without any effort or...

Save 30-50%+ of CI time without any effort or cost. Use Magic Nix Cache, a totally free and zero-configuration binary cache for Nix on GitHub Actions. - GitHub - DeterminateSystems/magic-nix-cach...

github.com

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Graham Christensen

@grhmc

10 months

Last year we adopted the “one sentence per line” coding standard and I gotta say, it’s a great one.

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Graham Christensen

@grhmc

2 months

For all the discussion about if Anduril is welcome or not welcome to NixCon, there exists a fundamental misunderstanding: Anduril is part of the Nix community by virtue of using and contributing to Nix.

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Graham Christensen

@grhmc

6 months

Getting macOS code signing, installer signing, and notarization / stapling working in CI was a bear but we got it going! Can’t wait to get this installer into more users’ hands. If you want to securely deploy Nix to macOS, come beta test it? 🙏

Join the Determinate Systems Discord Server!

Making Nix ❄ easier for Developers 🧑💻, Linux 🐧 enthusiasts, and business 🏢. | 637 members

discord.com

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Graham Christensen

@grhmc

7 months

After this tweet the networking team had Twitter taken away and nobody ever saw them again.

GitHub Network Ops

@AS36459

2 years

a little something we have in the works

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Graham Christensen

@grhmc

1 month

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Graham Christensen

@grhmc

10 months

I find it very concerning that @GitHub disappears users and their important contribution history without notice. Most recently, @joepie91 . To me, this raises great concerns for the longevity of important history of open source software projects.

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Graham Christensen

@grhmc

10 months

Perpetual respect for the Rust ecosystem writing crates like url::Url which takes the time to implement Origin () which takes the care to have both serializations (ascii_serialization, unicode_serialization) unambiguously helping me be do the right thing.

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Graham Christensen

@grhmc

5 months

100% of software is just a fancy replacement for somebody’s lookup table.

Leandro

@leostera

5 months

80% of types are just a fancy replacement of somebody's if (x != null)

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Graham Christensen

@grhmc

6 months

@ChShersh I care about delivering value to users and customers.

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Graham Christensen

@grhmc

8 months

@neysofu Luckily folks on my team get paid a bit more than $7/h, so I think it’ll pay off.

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Graham Christensen

@grhmc

1 year

A lot of FOSS users have libertarian leaning values around software. As a FOSS user, I’m kind of tired of it. Get that telemetry! Make your stuff better! Compete on more equal footing with well funded proprietary software which surely has good data! (Or don’t, it’s your project.)

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Graham Christensen

@grhmc

9 months

Today's launch was fantastic, better than I'd imagined. I couldn't be more proud of my team today -- and we've got more coming. Flakes just keep getting hotter and better and we're here to get it done.

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Graham Christensen

@grhmc

5 months

@KaliszAd Just the absolutely stunning and brilliant good work from @DrawsMiguel :

Designing a SIMD Algorithm from Scratch · mcyoung

mcyoung.xyz

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Graham Christensen

@grhmc

11 months

It’s a problem that building an OS / bootable image is slow. Slow enough we added containers on top without really solving the lower level. Part of the problem is gatekeeping what is inside the OS, leading to too much of the wrong thing — no matter who you are.

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Graham Christensen

@grhmc

4 months

@johncodezzz

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Graham Christensen

@grhmc

8 months

Anyone else drop a quadratic loop into some code and mutter "I'll see you later..." optimistically hoping it becomes a good problem?

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Graham Christensen

@grhmc

5 months

I was reluctant to post this, but in the end my resistance was low.

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Graham Christensen

@grhmc

8 months

Some exhausted post-NixCon cabin on a lake Ted Kaczynski vibes going on over here.

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Graham Christensen

@grhmc

12 days

The Berkshires is OP as a work from home region.

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Graham Christensen

@grhmc

11 months

Apparently my yard grows morels and I’ve just been mowing them down for years.

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Graham Christensen

@grhmc

25 days

Since forming DetSys, I’ve had a number of perspective shifts that sometimes leave me spinning. But I’m comfortable owning it. One of those is about what it means to be inclusive. I used to have a fairly specific view of inclusivity around race, gender, sexuality, and similar.

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Graham Christensen

@grhmc

6 months

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Graham Christensen

@grhmc

6 months

Can I just say it is insane to be pushing the adoption of a 40 year old version control system?

Robert Barat 🌹

@volt4ire

6 months

Thanks, Digital Markets Act!

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Graham Christensen

@grhmc

1 month

@__phantomderp I ask this with curiosity and interest, not malice. Why do you work so hard to improve C? What drives you? Why do you feel it is worth doing? (These are meant to be probing q’s, again — not to say you should stop.)

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Graham Christensen

@grhmc

7 months

I’m like 90% sure I solved a major UX issue with Nix. Running tests overnight and we’ll see in the AM…

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Graham Christensen

@grhmc

10 days

This is the way, and why Nix is the future. LTS is expensive tech debt you pay for twice.

Charity Majors

@mipsytipsy

13 days

"if you are not migrating, you are stagnating" our systems exist in a state of entropy; everything is constantly getting a little bit worse, all the time. the only way you can get a leap on things is by migrating. 🌈✨

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Graham Christensen

@grhmc

1 year

I’m going to pay for these takes at tomorrow’s standup.

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Graham Christensen

@grhmc

7 months

Thanks to @pingiun_ , who confirmed the upcoming release of the Determinate Nix Installer will persist through macOS upgrades. Finally squashing a bug that has plagued Nix users for years.

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Graham Christensen

@grhmc

1 year

The Determinate Nix Installer is switching to use Nix's auto-uid-allocation. This makes the install *much* faster and less intrusive. We've tested it pretty well, but to be safe, we'll be rolling it out to 5% of users to start.

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Graham Christensen

@grhmc

8 months

Going on vacation. See y’all in a week. Don’t burn open source to the ground while I’m gone, okay?

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Graham Christensen

@grhmc

4 months

In case you were annoyed by Nix hanging after Ctrl-C, @n1ksnut sent a PR fixing it at work today:

withFramedSink(): Receive interrupts on the stderr thread by edolstra · Pull Request #9687 ·...

Motivation Otherwise Nix deadlocks when Ctrl-C is received in withFramedSink(): the parent thread will wait forever for the stderr thread to shut down. Fixes the hang reported in #7245 (comment). C...

github.com

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Graham Christensen

@grhmc

3 months

@mycoliza This guy can’t see the strategic value to the nation of having ubiquitous fiber infrastructure .

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Graham Christensen

@grhmc

5 months

Bits of code are better when they do "one thing", but defining that "one thing" is hard -- and why unix's philosophy is not as cut and dry as folks like. For example, systemd _is_ one thing.

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Graham Christensen

@grhmc

6 months

@mycoliza I’m literally zero of those things but as a man I feel my opinion has been implicitly asked for, and apple’s reminders app is really very good for this stuff.

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Graham Christensen

@grhmc

11 days

I'm excited for Eelco's upstreaming of our flake regression test suite: This is one of @DeterminateSys ' efforts to proactively verify & validate Nix releases before the Determinate Nix installer updates, maintaining our flake stability guarantee.

Run the flake regressions test suite by edolstra · Pull Request #10603 · NixOS/nix

Motivation This adds a GitHub action to run a subset of the flake regressions test suite, which is a set of 259 flakes with their expected evaluation results (which is a JSON serialization of the f...

github.com

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Graham Christensen

@grhmc

10 months

Y’all, it’s here.

Determinate Systems

@DeterminateSys

10 months

We're extremely excited to introduce the Magic Nix Cache, a GitHub Action that will dramatically speed up your Nix workflow runs with a single line of YAML. No signup, SaaS membership, or additional Nix config required.

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Graham Christensen

@grhmc

8 months

How about some off-grid island time before NixCon? I’m so excited to see folks again.

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Graham Christensen

@grhmc

5 months

Now that I rewrote the upstream profile scripts in Rust, the Determinate Nix Installer can support loads of login shells out of the box. I've tested my escaping code on all of these: bash, dash, elvish, fish, ion, ksh, nushell, powershell, rc, sh, tcsh, zsh.

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