mastodon 4.7.3Member of @JavaChampions@mastodon.social | 👨💻 Senior Engineering Tech Lead at monday.com | ✉️ nurkiewicz (at gmail) | Podcaster: 🔊 http://nurkiewicz.com
"Code review of AI-generated source code? Are you also verifying machine code generated by compiler?"
Dude, you are comparing inherently probabilistic service running on someone's cloud to a compiler, the most deterministic piece of software (that doesn't mean bug-free!) on the planet
Underrated #vim advantage: when using vim mode in every other editor, you don't have to learn new keybindings all the time. Shortcuts are always the same. Weird and counterintuitive, but consistent
Thanks to LLMs, developers can finally avoid things they hate, like writing code, and focus on things they love - reviewing it
In #vim, gU is an *Uppercase* command. gu is a uowercase command
Biblically accurate picture of a developer managing multiple agents
Who the hell needs a spreadsheet (with AI!) embedded into Zoom desktop app?
„The income [from selling .ai domains] accounts for about 20% of Anguilla's total government revenue” https://finance.yahoo.com/news/tiny-caribbean-island-anguilla-turned-125841086.html#:~:text=The%20income%20now%20accounts%20for%20about%2020%25%20of%20Anguilla's%20total%20government%20revenue. To be honest it already was 5% before the boom (!)
As a Pole 🇵🇱 I’m looking forward to a great comeback of #Perl
Metallica ended after Kill’em All.
Internet ended after Usenet.
This newsletter could've been an RSS feed
#TIL where the name `grep` came from: https://stackoverflow.com/questions/1218390/what-is-your-most-productive-shortcut-with-vim/1220118#:~:text=bar.%22-,It's%20interesting%20that%20the%20common%20Unix%20command%20grep%20was%20actually%20inspired%20by%20this%20ex%20command%20(and%20is%20named%20after%20the%20way%20in%20which%20it%20was%20documented).%20The%20ex%20command%20:g/re/p%20(grep)%20was%20the%20way%20they%20documented%20how%20to%20%22globally%22%20%22print%22%20lines%20containing%20a%20%22regular%20expression%22%20(re),-.%20When
`git posh` when your code is particularly elegant
A few non-trivial tips how to build #Docker images: https://youtu.be/aZ_y2M2OuEA?is=CbGFdG3g9ubxSxFt
Arithmetic interpreter: Write yourself a compiler, Part II: https://nurkiewicz.com/2026/07/arithmetic-interpreter-write-yourself-a-compiler.html #go #compiler
A 1 million line PR rewriting #Bun from #Zig to #Rust just dropped... https://github.com/oven-sh/bun/pull/30412
Honest Roadmap from https://github.com/GitFrog1111/badclaude?tab=readme-ov-file#roadmap
"Meta employees used a total of 60.2 trillion AI tokens (!!) in 30 days. If this was charged at Anthropic’s API prices, it would cost $900M" https://blog.pragmaticengineer.com/the-pulse-tokenmaxxing-as-a-weird-new-trend/#:~:text=Information%2C-,Meta,100M%2B
Unbelievable. Every Ford Mach E has a front trunk. It's just there. But you have to pay extra $495 for the feature of unlocking it...
Apparently it's a one-time fee, not a subscription. Such wasted opportunity. https://www.motortrend.com/news/ford-mustang-mach-e-frunk-now-costs-extra
#neovim is simple! To copy ("yank"?) the entire buffer into clipboard, just hit [Esc] for Normal mode, followed by `ggyG`! ("go to the beginning of the buffer, yank selection, go to the end of buffer".) Of course you must first add this to use your OSes clipboard...:
```
vim.opt.clipboard = "unnamedplus"
```
#Claude Code (Opus 4.7, 1M context) is capable of reverse-engineering binaries. I just tried it on a moderately big #Go binary with debug info removed (`-ldflags="-s -w" -trimpath`) and it explained quite well what the program does. It used `nm`, `otool`, `strings` etc. It couldn't decompile it though
#OpenTelemetry glossary: 30 terms you should know: https://nurkiewicz.com/2026/04/open-telemetry-glossary.html
I didn't know this terrible practice has a name:
"Back button hijacking breaks this fundamental expectation. It occurs when a site interferes with a user's browser navigation and prevents them from using their back button to immediately get back to the page they came from. Instead, users might be sent to pages they never visited before, be presented with unsolicited recommendations or ads, or are otherwise just prevented from normally browsing the web" https://developers.google.com/search/blog/2026/04/back-button-hijacking#:~:text=page%2E-,Back,web
God bless git... #Claude edition:
```
sed -i without '' wiped the file on macOS. Restoring from git first
```
TIL you can run `ffmpeg` (compiled to #WebAssembly) directly in the browser (recording, converting, streaming) via https://github.com/ffmpegwasm/ffmpeg.wasm
"Braking is now a premium feature", the conference named SHITx, this Norwegian infomercial is so good: https://youtu.be/T4Upf_B9RLQ
Quiz time: Name a democratic country that has no guaranteed:
* Paid maternity leave (it's not Papua New Guinea, Marshall Islands, Micronesia, Nauru, Palau, Tonga, Lesotho, Swaziland)
* PTO (it's not Marshall Islands, Micronesia, Palau, Tonga, and Gambia)
* Notice period
* Retirement benefits
But has:
* Extremely expensive high education and healthcare
* The highest incarceration rate in the world (surpassed only by El Salvador, Cuba, Rwanda, Turkmenistan, American Samoa)
* Uses weird date format
"Hey Claude, rewrite this in Rust, make no mistakes"
Narrator: "Little did he know, Claude did make mistakes"
https://github.com/oven-sh/bun/issues/30719#issuecomment-4458612447 ;-)
"For the first time in history, humans are cheaper than software" - this quote is a bit exaggerated, applies to extrapolated data from top 1% companies spending the most on #AI. Yet, interesting article: https://www.a16z.news/p/the-next-ai-goldrush-tokens-loops
Jail-breaking Unitree Robot Dog by... injecting `curl` commands after random password... https://www.youtube.com/watch?v=lA8WuXDXfcI&t=720s
With all the disadvantages of #JavaScript, at least you don’t have to deal with locks and synchronization, right? Right?!? https://developer.mozilla.org/en-US/docs/Web/API/Web_Locks_API
I'm pretty sad I didn't join #jcrete this year. On the other hand, the last time I visited this unconference was... checks notes... 2017? https://nurkiewicz.com/2017/01/thoughts-after-jcrete-unconference.html
Advanced Napkin Math: Estimating System Performance from First Principles by Simon Eskildsen https://youtu.be/IxkSlnrRFqc
Recording of my talk "Better Call Fallback: Designing Resilient Services" at WAWTech 2025: https://www.youtube.com/watch?v=_qy-7FKfiLo
#TIL #ClaudeCode's `/resume` command can search through all sessions (not only from current directory) after pressing Ctrl+A
#Ghostty tip: You can have three evenly sized columns or rows (not just 1/2, 1/4, etc.) if you add this: `keybind = super+e=equalize_splits` and press Cmd+E after splitting. This will space everything evenly
> “Founder’s mindset”. No one will provide a spec, and scope creep is your problem to deal with. If your project doesn’t ship, that’s also your problem
> “High-agency”. There are no resources besides your own
> “White glove”. Do not say “no” to anything the customer suggests, even when they should probably listen to your feedback about whatever it is
Source: https://newsletter.pragmaticengineer.com/p/the-pulse-forward-deployed-engineering-887
#Raycast MacOS Desktop app switching to Node.js backend and web frontend :-( https://www.raycast.com/blog/a-technical-deep-dive-into-the-new-raycast
Which #AI actually reads your site? Two months of #LLM traffic, measured https://evilmartians.com/chronicles/which-ai-actually-reads-your-site-two-months-of-llm-traffic-measured - apart from the article itself, look how fast this website loads!
Very entertaining explanation of CAN bus: https://www.youtube.com/watch?v=QTTCqGtT6I4
For $0.14 you can run:
* EC2 t4g.nano (ARM/Graviton2, 2 vCPU, 0.5 GiB RAM) for 34 hours
* EC2 g4dn.xlarge (1 NVIDIA T4 GPU, 4 vCPU, 16 GiB RAM) for 16 minutes
* ...print current date with Opus 4.6:
```
❯ /cost
⎿ Total cost: $0.0000
❯ Current date
Today is April 9, 2026.
❯ /cost
⎿ Total cost: $0.1438
```
Wow, a post from my (now deleted) Twitter account, dated December 2021:
> I’ve been using @githubcopilot@bird.makeup with @intellijidea@bird.makeup for a few weeks. Sometimes it’s ridiculously wrong. But more often I’m blown away by how clever the suggestions are. I’m not afraid of my job being taken over by robots. However, it’s a valuable tool that saves me a bit of typing
https://nurkiewicz.com/2022/11/Twitter-archive.html#tweet-1467570298983796742
