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matsimitsu

87 karma · joined May 10, 2010

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matsimitsu··on Ask HN: Share your personal website
https://www.matsimitsu.com/
matsimitsu··on Pricing Changes for GitHub Actions
This! We went from 20!! minutes and 1.2k monthly spend on very, very brittle action runs to a full CI run in 4 minutes, always passing, by just by going to Hetzner's server auction page and bid on a 100 euro Ryzen machine.
matsimitsu··on Crush: Glamourous AI coding agent for your favourite terminal
You are probably looking for Mods (https://github.com/charmbracelet/mods), their other CLI AI Agent tool that's not a TUI, but a commandline interface to AI Agents.
matsimitsu··on Show HN: I’ve built an IoT device to let my family know when I’m in a meeting
Which is more expensive than an esp32 and a led panel, and less convenient.
matsimitsu··on The tiny chip that powers Montreal subway tickets
In China, QR Codes are used for public transport too, and I found them just as fast as NFC readers (and faster than the slow readers used by the NS in The Netherlands)
matsimitsu··on Show HN: Keep – GitHub Actions for your monitoring tools
We have a similar internal tool, and it's also called keep!

Besides alerts it also tracks, and displays things such as which MongoDB server is the primary, or which ElasticSearch node is the controller.

matsimitsu··on Tokyo by Train (2016) [video]
The bird sounds are indeed a guidance for blind people (to the escalators/elevators/exit).
matsimitsu··on Fly.io Postgres cluster down for 3 days, no word from them about it
I've had the same experience, unfortunately.

The Fly dashboard reported everything was A-ok, but requests would time out. I had to manually dig into the fly logs to see that their proxy couldn't reach the server, and there was nothing I could do to fix it.

This went on for hours, until I made an issue on their forums. They never replied or gave any indication they read the thread, but it somehow magically got fixed not long after.

I really want them to succeed, but this utter lack of communication and helpless feeling of not being able to do anything has cured me from fly.io for now.

matsimitsu··on Maker Faire Bay Area Returns
Amazing indeed, that's basically my entire Youtube subscription list in one place!
matsimitsu··on Lemmy now has over 2M users across 915 instances
> You need one account and then can contribute to all Lemmy communities on all servers.

That's not entirely true, some of the larger instances have no open federation policy, meaning the owner of the instance you are on has to get itself allowlisted in order to federate.

In practice this means that you can follow _some_ communities on _some_ other servers, but not all, and not every popular server.

Add that to the fact that some larger instances have stopped federating with each other and you have the current state; a minefield where your average user tries Lemmy, pastes a link into it's search box as instructed, nothing shows up and goes back to Reddit.

matsimitsu··on Atom feed format was born 20 years ago
I'm in the same boat, and came to the same conclusion.

One more point I'd add:

6. Not every ActivityPub enabled service allows for federation. (Some of the more popular block all federation, unless you get allowlisted). So you're stuck polling the outbox regardless.

matsimitsu··on Massive geothermal apartment complex is going up in Brooklyn, first of its kind
More than enough, but they are all new houses and have great insulation (Triple glass everywhere etc.)
matsimitsu··on Massive geothermal apartment complex is going up in Brooklyn, first of its kind
It's less efficient than lower temperatures, but this district is built without gas lines to the houses (as is normal in The Netherlands till recently), and it's more efficient than everyone having an electric boiler in their house.

The pipes are well insulated and apparently the energy loss quite manageable.

matsimitsu··on Massive geothermal apartment complex is going up in Brooklyn, first of its kind
It gets mixed with water already in the floor, adding just enough to maintain temperature. (in my case 30 degrees)
matsimitsu··on Massive geothermal apartment complex is going up in Brooklyn, first of its kind
I happened to get a tour of our geothermal district heating building last week, it was really interesting.

The entire neighbourhood of about 2200 houses is heated and cooled by this installation.

About 60% comes from the heat pumps that get their water from two well pairs, about 40 and 80 meters deep. It's not a closed system and the ground water flows about 50-100 meters to either pair.

The remaining capacity comes from a gas turbine that generates electricity to sell back to the net, and the residual heat is captured and used to heat the district. If the demand isn't there, it's pumped back into the ground for future use.

The third method is what amounts to basically a giant electric kettle, which has the worst COP factor, but there are times here in The Netherlands when energy prices are negative, and that's when they shut down the gas turbine and use the electric heater instead.

There are three pipes going to every house in the district, one with hot water, about 70 degrees and used for both floor heating and hot water, one with cold water for cooling in the summer, and a return pipe.

It removes a lot of infrastructure from your house, the hot water goes directly in your floors, so no boilers or furnaces. There's a small heat exchanger that warms the tapwater for showers, and you have zero maintenance.

matsimitsu··on Friday night’s near-disaster at JFK airport
#2 is already a thing in Europe, (for example on Heathrow you can hear ATC say "follow the greens", which will guide the planes to the correct Runway entrance: https://youtu.be/7pX9hxn-cmE?t=363)

Or this one, showing how it works in foggy condition: https://www.youtube.com/watch?v=2W2ak94xTXM

And an explanation of the system: https://www.youtube.com/watch?v=zAn1mfBDDkc

matsimitsu··on VR robots are building railways in Japan
You can literally see the same u-shaped thing on the next portal, it's used to keep the power feeding wire up.

But I guess, what matters here is how much fun you had on writing your snarky comment ;)

matsimitsu··on From Plex to Jellyfin Media Server
The only reason I still use Plex is that they have (native) apps on nearly every device me and my friends have (tv's, playstation etc.).

I remember starting with XBMC, which had the most beautiful theme's/skins that were really well optimised for the console experience, and there were many of them, all for free.

And now I'm paying for a Plex pass and everything is becoming more clunky and less usable each year, such a shame.

matsimitsu··on Analyzing Carbon Dioxide levels while attending IETF-115 in London, UK
New houses in The Netherlands have a monitor in each room (bedrooms, kitchen, living room and bathroom/shower) that control the mechanical ventilation.

In fancier homes they can control the ventilation per room, though the standard is that they control the ventilation for the entire house.

matsimitsu··on Ask HN: Share your personal site
https://matsimitsu.com

Started out a long time ago as a nanoc site and got converted to middleman and now sveltekit.

The blog is secondary to the trips section where I post about my past travels as a way to remember them.

matsimitsu··on Xiaomi unveils concept phone with near bezel-less display
My 1.5 year old Xiaomi Mi4i still gets weekly updates and has been since the launch, so that's not true.

[edit] It also still holds a 2-day charge after all this time and for it's price (180 euro's) it has been my best phone purchase in years.

matsimitsu··on Hacking a $9 Remote Control Car with Arduino
Hah, cool! i have done the same thing, just without the motor shield: http://matsimitsu.com/blog/2011/05/21/control-an-rc-car-with...
matsimitsu··on Can you build beautiful sites with Twitter Bootstrap? Hell yes
Just a heads up: I you use simple_form, they already have a way to adapt the forms to bootstrap and the results are great! (simple_form master)
matsimitsu··on Introducing Tapir: Simple search for static sites
You can actually just push any content with a link trough the API (see http://tapirgo.com/#docs > Push API). So with a deploy script that takes the content and pushes it, you can already do this right now!
matsimitsu··on Last.FM for TV Shows
I use http://trakt.tv mostly because it scrobbles automatically (from XBMC and a bunch of other media centers) what i have seen instead of marking everything by hand.