Hendrik Mans

@hmans.dev

1271 Followers 179 Following

Building useful playthings with Go, Svelte/SvelteKit, Kubernetes, NATS, and more. he/him. Blog: https://hmans.dev/ Work: @chatto.run Robots are welcome here. 🤖

"The development team of none Using LLMs to work with your code gives you a kick of adrenaline. You can develop at a rapid pace, build things as if you had a large team. Only that you have none. In fact, you are (often) alone, working with a statistical machine that turns energy into code. It seems like many ‘vibe coders’ don't realize that they don't actually have a community around them. They build projects as if they had, and spend resources accordingly. We see projects having a lot of code activity, heavy CI/CD testing, frequent and large release binaries. Sometimes, it feels like the amount of supported platforms exceeds the amount of actual users. To us, it seems ridiculous to see projects with a single developer and virtually no users consuming as much or even more resources than some of the largest community projects on Codeberg, which operate frugal with CI/CD and storage resources. We do not believe it is reasonable for Codeberg to invest our precious donation money into hosting of large ghost projects."
Dieter Laser (from "The Human Centipede")
The galaxy brain meme. "Z IS UP" "Y IS UP" "X IS UP" "W IS UP"
A very bad little asteroids game with a 3D camera widget that's shaking a little every time an asteroid is destroyed.
Search in Chatto is pluggable. Chatto owns the client-facing feature while a provider supplies indexing, matching, and ranking through a versioned, server-side NATS service. Operators can replace the provider without changing the Search page or public API. Chatto ships with a simple Bleve-based provider out of the box. It keeps a disposable full-text index on a local volume and should scale to most Chatto installations. You can run it inside chatto run, move it into a separate process, or replace it with another compatible provider.
"CHATTO", in a 3D text made of emojis. I'm clicking it to cause explosions, hurtling the emojis across the scene, followed by the individual letters being rebuilt by the magic of SPACE LASERS. Yeah I have AI Psychosis
The language selector from Chatto's user preferences. There are lots of languages now. Including Polish.
A Chatto permission matrix, now neatly animated, with the permission and role the mouse is currently hovering over highlighted
I'm pprof'ing Chatto and letting the agent dissect the results. "The nine-hour heap is actually slightly below the original 18-minute snapshot. No slow upward-retention trend is visible. Highlights: - myEvents retains just one 0.5 MiB sample on one pod and nothing measurable on the other. - Projections remain stable at roughly 31–33 MiB. - Compression pools have refilled to about 16.6–17.7 MiB, explaining most of the rebound from the post-GC snapshots. - Realtime/myEvents allocated about 283 MiB per pod over 8 hours 9 minutes: approximately 0.58 MiB/minute, almost perfectly symmetrical. - Only around 106–114 MiB of that interval flowed through filterLiveEvent. - Cgroup usage at capture was approximately 170 and 175 MiB. - RSS was about 217 MiB on both pods, slightly below the original capture. - The apparent goroutine spike was 111 temporary idle HTTP keep-alive connections on one pod. They have a two- minute timeout; it is not a myEvents or lifecycle leak. Both pods remain Ready with zero restarts, and JetStream is healthy. No forced GC was performed."
A Bluesky PDS oauth scope consent screen. The app I'm trying to log in with wants to manage my profile, read my private preferences, and create any public data in my PDS
› wazaaaaaap. • Wazaaaaaap. Just hanging out in the repo. › WAZZZZAAAAAAAAAAPPPPP • WAZZZZZZZAAAAAAAAAAAAAAAAAPPPPPPPPPPP! › WWUUUUZZZZAAAAAAAHHHHHHHHHPPPPPPPPPPPPPPPPP • WWWWUUUUUUZZZZZZAAAAAAAAAAAHHHHHHHHHHHHHPPPPPPPPPPPPPPPPPPPPPPPP!!!
A Chatto message from yours truly: "Random Chatto fun fact: all notification sounds are synthesized at runtime, some of them are even slightly randomized. And because we're a little weird here, you can even configure the sound shape, put some filters on them, and live out your wildest audio engineering fantasies. For push notifications sounds. Yeah."
A Chatto message posted by myself: "Hey @all, my friends. Just wanted to let you know that we'll be doing another community Q&A session tonight at 9pm CEST (3pm EDT, 12pm PDT; hopefully we'll have an event announcement tool soon that will figure out the converted times for us, haha. Ahem.) You'll find the call in the #random-chat room, I'll send you another ping when we're starting. Looking forward to facing your fantastic questions!"
It's me giving a double thumbs up because Chatto is cool!
Two Chatto rooms
It's Chatto! In the #random-chat channel of Chatto's official community.
The riddles scene from Monty Python and the Holy Grail
The bad/good meme. Bad: "Platform issues". Good: "Opportunity to make platform more resilient"
Animated meshes, lots of them!
Animated GIF recording of a terminal session with codex. The input area says "BAZINGA!"
The Chatto UI with a call sitting in its sidebar. Just little old me giving a thumbs up and sharing my screen, which has zombo.com opened for some reason.
Fable. The game.
Me scrolling really fast all the way back to the beginning of Chatto HQ's #random-chat channel.
The "DOTTIE HAS GONE PUBLIC" scene from "Armageddon", but the text message says "CHATTO HAS GONE PUBLIC"
Chatto is a fully-featured, web-based chat application that you can self-host for free. If you’ve used any of the big chat apps — no matter if it’s the one that rhymes with “knack” or the one that rhymes with “beams” or the one that rhymes with “this gourd” — then you know pretty much what to expect. Except: it’s tiny! It comes with strong privacy properties (it’s made in Europe, we have laws here!) You can just put it on a cheap VPS and host a little chat community for you and the two friends you’ve made in World of Warcraft, or scale it across multiple processes, servers, or even regions, for your 8000 person company! It has rooms! Threads! Replies! Notifications! File attachments (with built-in thumbnail generation, video transcoding, and GIF processing!) DMs! Voice and video calls with screen sharing! Full-text search! Heaps of configuration options! Flexible role-based access control! SSO integration! And more is coming! And it ships in a compact ~70 MB executable that you can just plop on a server and run.
A blurry smartphone selfie of the American Gothic couple laughing together in front of their farmhouse, the woman holding the camera while the man smiles beside her with his pitchfork.
A low-quality TikTok selfie recreating Edward Hopper's Nighthawks: a man in a fedora takes a blurry selfie inside the diner while the other patrons sit behind him. The image features motion blur, poor framing, and TikTok UI elements with comments and reactions.
Two article teasers on the Guardian website. 1. "Puppy eyes, sad hair and a big boom box: John Cusack films – ranked!" (Jon Cusack, in a suit, levels a revolver while crouching under a table) 2. "Edge of Armageddon - Why does one of the world’s top thinkers believe we’re nearing nuclear apocalypse?" (Children crouch under school desks during a drill in a classroom. Students at a Brooklyn middle school have a 'duck and cover' practice drill in preparation for a nuclear attack; silver print, 1962.) I'm enjoying that both images are of a person crouching under a table, and one of them -- the American, obviously -- is aiming his gun at something
1. **Install Chatto:** ```bash brew install chattocorp/tap/chatto ``` If you don't have Homebrew, just download the binary for your platform from [GitHub Releases](https://github.com/chattocorp/chatto/releases). Support for more package managers will be added with time! 2. **Generate a configuration file:** Move to an empty directory and have Chatto generate a configuration file: ```bash chatto init ``` This creates a `chatto.toml` with random secrets for cookie signing, cookie encryption, runtime-token verifiers, asset signing, and NATS authentication. **Take a minute to review this file.** It's already a working configuration, but you may want to customize some things. You will _definitely_ want to provide SMTP credentials. 3. **Start the server:** ```bash chatto run ``` 4. **Open your browser** to [http://localhost:4000](http://localhost:4000) (or whatever port you configured in the configuration file.)
"It's not like the job market was that much better before AI infested every single corner of the market, but it supercharged all of the worst aspects of everything. I've seen people supposedly smarter than I advocate for just giving in, conceding to AI coding as it's the future. But doing so means tossing out my friends who make art or the people who work their asses off to properly test and review code or the writers pouring all of their energy into even mundane dialogue. It means throwing out my dignity as a software engineer, as someone that truly gives a shit about security and code."
"Desktop apps deno desktop turns a Deno project (anything from a single TypeScript file to a Next.js app) into a self-contained desktop application. The output is a redistributable binary that bundles your code, the Deno runtime, and a web rendering engine into one bundle per platform."
The "distracted boyfriend" meme. A girl in a red dress is titled "I AM GIRL". The distracted boyfriend who is turning around to look at the girl is titled "I AM TURNING AROUND TO LOOK AT GIRL". His girlfriend who is walking next to him is looking at him, visibly irritated, and is titled "UGH WHY IS HE TURNING AROUND TO LOOK AT GIRL".
A response time heatmap, showing the requests I made in the video as a cool little cluster sitting under 25ms response time.
Chatto being extremely fast. See bleat for description.
An aging barbarian with a twohander sword and a ferret. In case you're not sure what block list to add me to, yes, this is totally AI generated.
I'm asking codex to please build a cool dashboard for the Chatto servers I'm hosting.
It's Chatto!
Me! Alone in a video call!
Mon Mothma (Star Wars): "Many tokens were spent to bring us this diff"
Me asking my coding agent to change px-3 into px-2
The device described in the bleat.
Me scrolling the Chatto community server's #general room really really fast.
The Trump/Kennedy removal live feed being face bombed
mu.social asking for pretty much *all* permissions, including deactivating my account
Github's status page, very red
VS Code confirmation dialog asking to reauthenticate the GitHub PR extension
A couple of slides from my slide deck for a talk I gave last night about Klaus, a personal agent I built from scratch because I was too dumb to get OpenClaw working
"This is a hysterical era perpetuated by liars, cowards, imbeciles, craven boosters and the easily-fooled. Those excited about generative AI are either the victim or the perpetrator of a con centered around a technology to ingratiate at the highest cost possible."
The "Why so serious" scene from The Dark Knight, but the Joker is asking "Why so Siri OS"
A made-up pinball table that looks like the right half of that image
Straßenschild "Michael-Ende-Ring"
AI tools have changed the economics of this very quickly. We use them ourselves every day, but a pull request no longer tells us as much as it used to about the person submitting it. A substantial patch used to imply substantial effort, and that effort was a reasonable proxy for good faith. That assumption no longer holds.
Skip Tyler from Hunt for Red October after learning about Red October