Brad Fitzpatrick

I ask Claude to write some tests. It writes a test containing: strings.Repeat("All work and no play makes Jack a dull boy.\n", 2<<20/44) That quote (nor any other Shining reference) doesn't exist in the tree. Uhhh.

Me asking AI agent a question and then it comes back thinking, saying... 😅

Me: "Where did the icons come from?" Agent: "I drew them directly in Go using simple vector lines and circles, rasterized with x/image/vector. They’re in drawFitnessIcon in [...].go—not downloaded from [...] or another icon pack. No additional assets or licence dependency were introduced" Me: 😬

"Hi Alex, please help me fill out my paperwork in reporting you so you get fined, kthx..." (already filled out a few things without knowing details yet)

"man 5 nfs" on macOS has a typo (wrong spelling of its as it's) but I pulled some strings with a nameless contact at Apple and got it fixed in under an hour! 🍎: "Okay expect fixes in macOS 27.3 for these" (said contact also looked around & fixed a handful of other instances at the same time) yay?

Anthropic may not have intended to write an excellent ad for GLM 5.3, but that's what they did. www.anthropic.com/research/glm... Unlike Mythos, I might actually have a chance at using GLM for defensive research. Anthropic didn't reply to any of my requests for Mythos access for use on OpenSSH.

Oh, hi. 👋 We might announce Tailcat releases here and reskeet tailcat-related stuff! Holler if you have questions.

At a kid's birthday party and I perked up hearing the host behind me say "and margarita, help yourself!" I spun around and saw that the pizzas had arrived... Margherita.

sync, runtime, cmd/compile: add way to mix Mutex/chan in select go-review.googlesource.com/c/go/+/82854... This is like the 5th time I've thrown this at a new AI model but GPT-6-Astra seems to have maybe done it? After it first rejected me for cybersecurity reasons but I talked it out of it #golang

My first time trying to use GPT-6-Astra and it denies me for cybersecurity reasons. For trying to optimize something in the Go runtime. Sigh. So dumb.

We unfortunately learned that Go staticcheck and Go 1.27 generic methods aren't playing well together at the moment: github.com/golang/go/is... It doesn't seem like it's staticcheck's fault, though. #golang

I can finally talk about this, 3 years later... github.com/tailscale/ta... It's a library + CLI tool that's like netcat, but over Tailscale's data plane without any control plane (no accounts, no dependence on Tailscale the company, all open source) WireGuard + NAT traversal without IP addresses.

Humanity has mastered automatic water faucets and made some good swings at automatic hand driers. I wonder if AI can help the humans figure out how to make the elusive automatic soap dispensers that never seem to work. (deep thought brought to you from 6 hours at LHR from a very delayed flight 😭)

On 2024-02-22 I reached out to @antithesis.com fanboying and wanting to use it for @tailscale.com. They were expensive & I couldn’t get people on board w/ buying their service. Instead, more time + money went to: tailscale.com/blog/sqlite-... Nerd sniped them and: antithesis.com/blog/2026/wa... 😅

Just saw my first solar eclipse. A++. Would recommend. (Currently on Liberty of the Seas, just north of Spain) Here it is at 4x rate:

“He doesn’t know how to use the three seashells!” (Me trying to figure out the unlabeled bins in Bilbao 😅)

🎵 "You take your car to work I'll take my board And when you're out of fuel I'm still afloat..." 🎵

brb wardriving Liberty of the Seas to build a shipwide geolocation app from the bazillion wifi APs Luckily I have an Android with me to scan (better scan APIs). Then can use data from iOS which only reports the currently connect AP MAC or whatever 2 decks down, 13 to go? 😅

I'm losing my patience with GitHub. Both the constant outages and constant lying piss me off.

Me: yo, analyze why this package's tests are slow Fable: "zomg Accepted Use Policy violation!!!" 🙄

4th of July Fun Run 5K! 🎉🇺🇸 First organized run in ages. Fun indeed. And earns me 3.1 beers in my 2026 mile-per-beer (any alcoholic drink) resolution! I'm trying to work up to a half marathon again. Longest run lately is 6.5 miles.

I tried to delete some files from a USB stick on macOS. macOS: "This operation cannot be completed because the disk is full." 🏆

Hey @goodtogo.wsdot.wa.gov, a unique merchant-locked credit card number (from Privacy.com) I've only ever given to you guys tried to buy $2,200 of sandwiches. Did you get compromised? I closed the card and see no other activity on it, at least.

3yo cut off a bunch of her hair w/ scissors, painted her whole face like war paint, skipped her nap, refuses to take off her bike helmet, wants a snack but isn't she what, kinda fell asleep on one bike ride but wants another bike ride now, refuses to take a bath (still w/ helmet + face paint) HFD!

3yo: "papa, (can) you carry me?" "On my shoulders?" "No! On your belly!" 🔥

Our 3yo is loving this Mariners game. “We’ll sell you the whole seat but you’ll only need the bed”

10 year anniversary with @radkat.fitzpat.com! 😘

Every year or so (for the past ~9yr) I check whether Google Fi lets me have an Apple Watch yet, and every year I find out the answer is no and don't buy an Apple Watch. But it'd be nice for running. But I also don't want to change carriers. Google Fi has just been so pleasantly non-shitty. Sigh.

Got a notification from a medieval copyright lawyer

This little thingy is great: pockethernet.com (Not an ad. No affiliate links. Just enamored.)

"Racksberry Pi" My new rack to eventually better organize/cable my collection of all Raspberries Pi, mips, mipsle, mips64, riscv64, etc rando hardware. Still setting it up. Only silent fanless stuff is allowed here. Servers with fans/IPMI go in the garage where they can be loud and not needy.

Long shot, but reposting by request of wife. 😅 Or--- other CrunchLabs-inspired birthday party ideas? (hah, in Seattle ideally... :))

And while I was doing operating systems whose names match /^R.*OS$/ .... Tailscale on ReactOS! (reactos.org) It's like an open source Windows XP. Go toolchain + std require Win10+, and ReactOS is pre-Win7, so Go needed changes. Then ran a tsnet server on it, serving its own screenshot:

Another one for Tailscale Hack Week: I got Go ported to Redox OS (www.redox-os.org), enough to run Tailscale inside it. i.e. GOOS=redox GOARCH=amd64 Go std tests exposed a Redox libc bug with unsafe Rust, too. And a kernel crash.

Uhhh... "Claude Code is unable to respond to this request, which appears to violate our Usage Policy" ... "This request triggered restrictions on violative cyber content and was blocked under Anthropic's Usage Policy." dude, I'm writing networking code + tunnels + proxies. sorry if bad guys do too

🎉🎉 I've been working with the folk at Tailscale on their new #rust-lang library. Last week it was officially announced (tailscale.com/blog/tailsca...) along with open-sourcing the code (github.com/tailscale/ta...).

Kids: "cereal?!? Why does it say USB Cereal?" (They're playing with a Crunchlabs Hack Packet IR Turret flashing different code to its microcontroller... 🤘)