Brad Fitzpatrick 🌻 @bradfitz Twitter profile

Last Seen Profiles

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@upavshih

Brad Fitzpatrick 🌻

@bradfitz

2 years

Kid just asked me whether there was a negative zero. I knew this day would come but I wasn't quite ready to have The Talk about IEEE 754 quite yet.

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Brad Fitzpatrick 🌻

@bradfitz

4 years

"An update on bradfitz" After ~12.5 years at Google and ~10 years working on Go, it's time for me to do something new. Tomorrow is my last day at Google. 👋 I'll still be involved with #golang but less, and differently. More:

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Brad Fitzpatrick 🌻

@bradfitz

3 years

Network interface naming Linux: "wlan0" macOS: "en1" Windows: "The Broadcom 802.11 Network Adapter provides wireless local area networking."

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Brad Fitzpatrick 🌻

@bradfitz

6 years

@ScottBatemanMan @jeremypgordon Hi. 🐐

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Brad Fitzpatrick 🌻

@bradfitz

4 years

Handed in my corp devices and badge! Bye, Google! Officially unemployed.

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Brad Fitzpatrick 🌻

@bradfitz

5 years

I can't keep up with the news lately (and most of it's depressing), but the #HongKong protests seem like the most optimistic thing that's happening in the world lately. We're cheering for you, Hong Kong! 🇭🇰 (well, most of us, except stupid corps and bots)

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Brad Fitzpatrick 🌻

@bradfitz

3 years

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Brad Fitzpatrick 🌻

@bradfitz

3 years

Very green Tesla.

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Brad Fitzpatrick 🌻

@bradfitz

4 years

Go 1.15 binary sizes took a welcome turn: From 8.2M in Go 1.14 to 3.9M !?!? 👏👏 #golang

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Brad Fitzpatrick 🌻

@bradfitz

6 years

@ScottBatemanMan @jeremypgordon I see a few dozen emails with your name! Including a few 2000-2003 PayPal receipts. Thanks for supporting LJ!

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Brad Fitzpatrick 🌻

@bradfitz

3 years

Parse JSON like a Rockstar: 😂

How I cut GTA Online loading times by 70%

GTA Online. Infamous for its slow loading times. Having picked up the game again to finish some of the newer heists I was shocked (/s) to discover that it still loads just as slow as the day it was re

nee.lv

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Brad Fitzpatrick 🌻

@bradfitz

4 years

Unemployment got boring. I'm joining @Tailscale . More:

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Brad Fitzpatrick 🌻

@bradfitz

7 years

Hello, world. @radkat and I are proud to introduce Dylan. 👶❤️ Goodbye, sleep.

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Brad Fitzpatrick 🌻

@bradfitz

2 years

Happy Go 1.18 release day! Most generic release yet. #golang

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Brad Fitzpatrick 🌻

@bradfitz

5 years

Today LiveJournal is 20 years old. 🐐🎂🎉 It's a few months older but before that it was a CGI script I copied to friends who ran it on their own servers. Today is domain anniversary. Hosting it for others helped it grow. :)

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Brad Fitzpatrick 🌻

@bradfitz

8 years

OpenSSL. Fixing CVE-2016-6307 caused CVE-2016-6309 and CVE-2016-7052? Can't make this up.

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Brad Fitzpatrick 🌻

@bradfitz

6 years

Coworker closes laptop lid in sadness and frustration at some code. Coworker 2 asks why he doesn't throw his laptop across the room. "Because I'm afraid I'd then need to upgrade to one with USB-C"

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Brad Fitzpatrick 🌻

@bradfitz

4 years

Remember when I quit my well-paying job in January because it was "time for me to do something new"? I suppose pandemic lockdown childcare is "something new" but this isn't quite what I had in mind; I should've been more specific.

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Brad Fitzpatrick 🌻

@bradfitz

3 years

That's a remote upgrade I wouldn't look forward to.

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Brad Fitzpatrick 🌻

@bradfitz

5 years

The #golang playground now supports third-party imports, pulling them in via ... 🎉 Multi-file support & few other things up next. Report bugs at or here on the tweeters.

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Brad Fitzpatrick 🌻

@bradfitz

3 years

When I went to Google in 2007 to learn how the grownups did distributed systems, I searched internal docs for things I'd made and found that YouTube was using Perlbal (LiveJournal's HTTP load balancer) for some stuff at the time. Honored 😜

Internal Tech Emails

@TechEmails

3 years

YouTube cofounder: "aiming high" February 11, 2005

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Brad Fitzpatrick 🌻

@bradfitz

3 years

Whoa, run Apple II Print Shop in the browser, with a virtual printer that generates a PDF: OMG so many memories! 😍

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Brad Fitzpatrick 🌻

@bradfitz

4 years

I've got a joke about #golang error handling but it's going to take several lines.

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Brad Fitzpatrick 🌻

@bradfitz

2 years

oh dear god

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Brad Fitzpatrick 🌻

@bradfitz

3 years

So, Java got goroutines. What a world!

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Brad Fitzpatrick 🌻

@bradfitz

3 years

Annnnd the #golang proposal to add generics is now accepted: 🎉

spec: add generic programming using type parameters · Issue #43651 · golang/go

We propose adding support for type parameters to Go. This will change the Go language to support a form of generic programming. A detailed proposal document has been published, with input from many...

github.com

Brad Fitzpatrick 🌻

@bradfitz

3 years

Generics in #golang has moved to "likely accept" phase...

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Brad Fitzpatrick 🌻

@bradfitz

3 years

just another day in open source

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Brad Fitzpatrick 🌻

@bradfitz

5 years

How will AWS and GCP respond to this new offering? 🤔☕️☁️

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Brad Fitzpatrick 🌻

@bradfitz

3 years

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Brad Fitzpatrick 🌻

@bradfitz

2 years

Tailscale-for-wasm shipped! Now you can SSH in your browser to @Tailscale nodes. It runs all of Tailscale+WireGuard+gVisor netstack+SSH client in your browser locally. #WebAssembly

Mihai Parparita

@mihai

2 years

To make a web SSH client from scratch, you must first create the network stack. It was a lot of fun turning @bradfitz ’s @tailscale Wasm prototype into Tailscale SSH Console. We wrote up a bunch of behind the scenes details at .

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Brad Fitzpatrick 🌻

@bradfitz

5 years

Is there nothing left to do in tech if everybody's working on Dark Mode?

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Brad Fitzpatrick 🌻

@bradfitz

4 years

oh, nice, 50% more fast units

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Brad Fitzpatrick 🌻

@bradfitz

4 years

Turns out Google's internal business card order form only allows a few email address domain names in its <select> drop-down. But that's easy enough to fix by editing the DOM with Chrome DevTools. My parting gift arrived. (I couldn't change the Google to a gopher, though.)

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Brad Fitzpatrick 🌻

@bradfitz

4 years

Somebody just found some old pictures of my 21st birthday party and noted that I stepped away from the party to deal with a LiveJournal thing in the middle. Look at that retro battlestation! And a fax machine?!

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Brad Fitzpatrick 🌻

@bradfitz

5 years

Twice today I've spoken up in meetings and was totally ignored. I guess my idea wasn't even worth a reply? :-/ Five minutes later: oh, right, I forgot I'd muted myself.

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Brad Fitzpatrick 🌻

@bradfitz

5 years

Go 1.13 is shaping up to be pretty fun: - modules - defer on stack () - bunch of GC return-memory-to-OS improvements - bunch of optimizations - linker memory reductions, some speed - record version & dep versions in binary - sync.Pool love - ... #golang

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Brad Fitzpatrick 🌻

@bradfitz

3 years

coworker pointed out he's closer in age to my 4 year old than me 🪦

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Brad Fitzpatrick 🌻

@bradfitz

2 years

Thanks, family. 😂

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Brad Fitzpatrick 🌻

@bradfitz

4 years

40 🎉🎂👴

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Brad Fitzpatrick 🌻

@bradfitz

4 years

115 KiB of our binary is #golang compiler-generated equality funcs for structs used as value types. Make it all go away with this one dirty trick: Make your struct types not comparable by adding an unnamed 0-sized array of func pointers. Now it can't ==: _ [0]func() 🤮 🤷‍♂️

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Brad Fitzpatrick 🌻

@bradfitz

2 years

more IPv4 plotting. Yellow = AWS Orange = GCP Purple = Azure Brown = DoD / US Govt Gray = Reserved (e.g. 127.0.0.0/8 in the middle) Blue = you guess

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Brad Fitzpatrick 🌻

@bradfitz

7 years

My regular bartender gave me a haircut in 2013 and I paid in $BTC. Good haircut. (She still has it, now $12,500 or whatever.)

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Brad Fitzpatrick 🌻

@bradfitz

2 years

10 years of my technical writing being critiqued by the Go team and I can still hear Rob et al telling me: "Drop Useful. Useful is subjective. And if it's not useful why would it be here anyway?" java.util.Locale: ...

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Brad Fitzpatrick 🌻

@bradfitz

7 years

Dear onesie manufacturers, Please use alternating colored snaps to prevent off-by-one errors during baby wiggling. All silver doesn't help anybody. Love, Parents

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Brad Fitzpatrick 🌻

@bradfitz

5 years

@AOC I hope you enjoyed LiveJournal in high school, at least! Keep up the good work. Don't let the haters hate. Signed, LiveJournal creator & AOC fan, @bradfitz .

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Brad Fitzpatrick 🌻

@bradfitz

4 years

Well, it only took 7 months for Google recruiters to start contacting me. (Then again, they also contact you while you're still employed at the company, so I shouldn't be too surprised.)

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Brad Fitzpatrick 🌻

@bradfitz

2 years

useless idea that maybe already exists: add song metadata in source code comments so each file can have a theme song that starts playing when you open it (e.g. integrate with vscode-spotify or whatever)

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Brad Fitzpatrick 🌻

@bradfitz

2 years

We made a thing: Таilscale SSH. We put an SSH server in the @Tailscale tailscaled process that integrates w/ Tailscale auth (authN+authZ) so you don't need SSH keys. And works alongside any existing SSH server on your machine. Props to @maisem_ali for doing the hard parts! 😅

Tailscale

@Tailscale

2 years

🚀 Say hello to Tailscale SSH — and say goodbye to managing SSH keys, setting up bastion jump boxes, and unnecessarily exposing your private production devices to the open internet.

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Brad Fitzpatrick 🌻

@bradfitz

4 years

Inbox zero is for suckers. Just give up. I have.

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Brad Fitzpatrick 🌻

@bradfitz

5 years

Go 1.14 should be great. Much #golang runtime work this cycle. Hope all lands: * async preemption () * fast defers () * scalable timers (, ) * new page allocator ()

time: excessive CPU usage when using Ticker and Sleep · Issue #27707 · golang/go

What version of Go are you using (go version)? go1.11 linux/amd64 Does this issue reproduce with the latest release? Yes What operating system and processor architecture are you using (go env)? GOA...

github.com

Brad Fitzpatrick 🌻

@bradfitz

5 years

#golang defer statements got faster in Go 1.13 and got much faster just now, for Go 1.14: "cmd/compile, cmd/link, runtime: make defers low-cost through inline code and extra funcdata"

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Brad Fitzpatrick 🌻

@bradfitz

3 years

Pass-through RJ45 connectors still feel like cheating

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Brad Fitzpatrick 🌻

@bradfitz

7 years

I apologize to any of my twitter followers who are not interested in the union of: * #golang * Politics * Kubernetes * Seattle, SF * Bitcoin * Photos of my cute baby * Dad jokes * General snark * Beer But thanks for tolerating all the tweetspam!

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Brad Fitzpatrick 🌻

@bradfitz

2 years

Today's my two years at @Tailscale anniversary! 🔐🎉 After about 3,000 commits I'm getting closer to understanding networking. (admittedly a BS metric; nobody will truly understand networking)

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Brad Fitzpatrick 🌻

@bradfitz

6 years

Google's all, "Oh, you're logged into Google so we know who you are and your country and every personal detail of your life and looking at a map of Hawaii, so we'll show you miles not km, but OH MY GOD YOU HAVE A GERMAN IP ADDRESS SO WE'LL USE A COMMA FOR THE DECIMAL POINT!" thx

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Brad Fitzpatrick 🌻

@bradfitz

2 years

damnit, Copilot

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Brad Fitzpatrick 🌻

@bradfitz

4 years

Unix: The Rule Of Silence () ... "when a program has nothing surprising, interesting or useful to say, it should say nothing." Windows: " OK!"

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Brad Fitzpatrick 🌻

@bradfitz

6 years

The number of #golang commits from non-Googlers seems to have overtaken those from Googlers... congrats! (using go get )

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Brad Fitzpatrick 🌻

@bradfitz

3 years

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Brad Fitzpatrick 🌻

@bradfitz

3 years

rm -rf

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Brad Fitzpatrick 🌻

@bradfitz

8 years

Dear internet, Have I ever shown you my LGTM foot pedal?

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Brad Fitzpatrick 🌻

@bradfitz

2 years

I'm preparing to do an interview. This applicant has an impressive tenure at their previous job... "Jan 1970 - present · 52 years"

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Brad Fitzpatrick 🌻

@bradfitz

5 years

I feel ya, little man.

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Brad Fitzpatrick 🌻

@bradfitz

5 years

So, * FB pays teens to track them with app (market research). ~Fine * Apple doesn't approve said iOS app * FB says F that, distributes sideloaded corp app * Apple says F that, blacklists Facebook's corp cert * FB employees can't check lunch menu etc Cool.

Apple blocks Facebook from running its internal iOS apps

Facebook’s internal iOS apps simply don’t launch anymore.

www.theverge.com

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Brad Fitzpatrick 🌻

@bradfitz

5 years

I wrote a doc: CRFS: Container Registry Filesystem "CRFS is a read-only FUSE filesystem that lets you mount a container image, served directly from a container registry (such as ), without pulling it all locally first." Code later

Artifact Registry | Google Cloud

The next generation of Container Registry. Store, manage, and secure your build artifacts.

cloud.google.com

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Brad Fitzpatrick 🌻

@bradfitz

4 years

We just made the first bits of the @Tailscale code public, starting w/ the Linux client + its dependent/common code: Still lots of rough edges & TODOs everywhere so temper expectations accordingly. We want to hack in open and not wait until it's perfect.

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Brad Fitzpatrick 🌻

@bradfitz

3 years

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Brad Fitzpatrick 🌻

@bradfitz

4 years

I miss Touch ID.

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Brad Fitzpatrick 🌻

@bradfitz

1 year

@maximilianhils Ooooh, I forgot this behavior in my list!

GitHub - bradfitz/issue-tracker-behaviors

Contribute to bradfitz/issue-tracker-behaviors development by creating an account on GitHub.

github.com

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Brad Fitzpatrick 🌻

@bradfitz

2 years

My Unix/Linux knowledge is pretty decent in parts & not so in others. Stuff around process groups, sessions/session leaders, controlling terminals, ptys, termcaps, login shells, uid/euid/suid, capabilities... very fuzzy. There a canonical guide/book to all this? Time to learn.

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Brad Fitzpatrick 🌻

@bradfitz

3 years

#golang generics FAQ updated

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Brad Fitzpatrick 🌻

@bradfitz

2 years

oh hi, little pumpkin thanks for cheering me up

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Brad Fitzpatrick 🌻

@bradfitz

4 years

The 3-year-old talking about his little brother who smashed his tower: "He's just a little boy. He doesn't know what to do. But I'm a big boy and I also don't know what to do." Deep.

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Brad Fitzpatrick 🌻

@bradfitz

2 years

I'm proud to introduce the newest US citizen: @radkat ! 🎉🇺🇸🗽🇺🇸🎉 (Old photos, but appropriate!) 😘

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Brad Fitzpatrick 🌻

@bradfitz

8 years

So, this happened. 💒🍾 Love you, @radkat ! #FitzPek

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Brad Fitzpatrick 🌻

@bradfitz

7 years

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Brad Fitzpatrick 🌻

@bradfitz

5 years

serverless-to-cgi-bin -- A browser extension that replaces occurrences of 'serverless' with 'cgi-bin'

GitHub - ghuntley/serverless-to-cgi-bin: A browser extension that replaces occurrences of 'server...

A browser extension that replaces occurrences of 'serverless' with 'cgi-bin' - GitHub - ghuntley/serverless-to-cgi-bin: A browser extension that replaces occurrence...

github.com

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Brad Fitzpatrick 🌻

@bradfitz

3 years

"hey @nickoneill , what's your wifi?" "We don't have wifi." "What? You don't have wifi?!" "No, we don't have wifi" ... "Goddamnit, Nick."

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Brad Fitzpatrick 🌻

@bradfitz

5 years

Hello, Sean! Welcome to the family. LGTM! 👶💓 😘 @radkat .

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Brad Fitzpatrick 🌻

@bradfitz

3 years

So @Tailscale is now officially free for open source projects & friends/family use cases when using GitHub orgs: We launched GitHub auth support without clarifying that. Consider it clarified. :)

Even more for free: Tailscale for open source projects

Tailscale loves open source. We know that it can be tough to develop a project in the open, and collaborate with individuals and organizations around the world.

tailscale.com

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Brad Fitzpatrick 🌻

@bradfitz

3 years

We finished[1] migrating away from git submodules today. go.mod + gohack FTW. (Thanks, @rogpeppe !) [1] nothing is ever finished, but they are deleted.

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Brad Fitzpatrick 🌻

@bradfitz

4 years

When I left Google apparently all my old App Engine and GCP projects were auto-transferred to my team or something, including my very first one when I wanted to run Hello World but it nagged me for a "project ID" (whatever that was!) and I entered: "your-mom" So Go got that. 😂

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Brad Fitzpatrick 🌻

@bradfitz

5 years

@_rsc We can all finally apply for those jobs asking for 10 years of "Golang" experience! 😅

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Brad Fitzpatrick 🌻

@bradfitz

7 years

This hose has 6 useful spray patterns and one utterly stupid or broken one. #verticalvideo

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Brad Fitzpatrick 🌻

@bradfitz

10 years

Welcome to Japan... http://t.co/cfaNSBExMD

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Brad Fitzpatrick 🌻

@bradfitz

3 years

Good on @AWSOpen for forking ElasticSearch. Sorry Elasticsearch, but if you open source something and then up-open source it, don't be surprised if people carry on using & contributing to the old open source version. Play stupid games, win stupid prizes, etc.

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Brad Fitzpatrick 🌻

@bradfitz

4 years

. @radkat is really into custom cakes (like Thomas the Tank Engine for our 2 year old's party) but I'm not into Thomas (as much as Dylan) so she got me a cake shaped like my server rack[0], complete with lights. 😆 [0]

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Brad Fitzpatrick 🌻

@bradfitz

4 years

Thanks to @FiloSottile for sending out to remove hurtful terminology in the #golang tree. Better late than never. (Preemptive: yes, whitelist/blacklist terms aren't racist by etymology. That's not the point. Rather, not perpetuating white=good/black=bad)

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Brad Fitzpatrick 🌻

@bradfitz

4 years

me writing Swift

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Brad Fitzpatrick 🌻

@bradfitz

3 years

1 year at @Tailscale . Whee! 🎢👨‍💻🔗🌐🔐 📈🎉🎂

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Brad Fitzpatrick 🌻

@bradfitz

5 years

Lolz at internet comments saying that Google couldn't have possibly paid "millions" on Go because #golang is so simple. Probably a troll, but my napkin math w/ git log + ~glassdoor salaries puts Google-paid accumulated salaries alone at least $45 million since 2009.

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Brad Fitzpatrick 🌻

@bradfitz

6 years

A good stopping point for going to bed is when you think you know the solution to a problem or at least a good next debugging step. DON'T ACTUALLY TRY IT, though! If you fail, you'll be up longer: either fighting it more, or thinking about it in bed. 💤

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Brad Fitzpatrick 🌻

@bradfitz

4 years

"logrotate.service: Failed to run 'start' task: No space left on device" You had one job.

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Brad Fitzpatrick 🌻

@bradfitz

5 years

Whoa: "Run VS Code on a remote server" I haven't been able to fight Emacs+screen+mosh addiction for ~20 years now (well, mosh was recent addition) because I loved being able to move between machines & have my state preserved. I've been waiting for this!

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Brad Fitzpatrick 🌻

@bradfitz

2 years

The IRS has a new authentication provider: . So to pay taxes to the US government I need to use an identity provider with a Montenegro domain. 🙄🤷‍♂️

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Brad Fitzpatrick 🌻

@bradfitz

5 years

If any of y'all would like to experience something, uh, special, then express support for Hong Kong and watch your email and DMs blow up with Chinese bots and nationalists. Wow. Good times.

Brad Fitzpatrick 🌻

@bradfitz

5 years

I can't keep up with the news lately (and most of it's depressing), but the #HongKong protests seem like the most optimistic thing that's happening in the world lately. We're cheering for you, Hong Kong! 🇭🇰 (well, most of us, except stupid corps and bots)

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Brad Fitzpatrick 🌻

@bradfitz

6 years

My #homelab write-up is now up: Questions welcome. I'll reply here & also update the doc. And I'll try to keep it updated over time and flesh it out more with configs, etc.

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Brad Fitzpatrick 🌻

@bradfitz

5 years

yeah being an open source maintainer is so rewarding: sigh. #golang

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Brad Fitzpatrick 🌻

@bradfitz

4 years

Week 1 (0.5?) at @Tailscale : * set up internal Tailscale godoc server (running on Tailscale itself!); memories of Google internal godoc on Borg * set up many accounts, 2FA, computers (Windows + Linux) ... tedious, but necessary * started prepping for open sourcing stuff 🎉🎉

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Brad Fitzpatrick 🌻

@bradfitz

2 years

Fuck Everything, We're Doing Five Cameras

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