skysight-inc/HackerNews huggingface dataset:
Yes, just set up a sensor with home assistant (HA). Incredibly easy. Raspberry pi runs the HA server. The air quality sensor is attached to an ESP32 running ESPHome: https://esphome.io/#air-quality

Almost plug and play. Compiles the FW, flashes it, and the device auto connects to the network and is ready for integration into HA. I used the HM3301 air quality sensor FWIW. You can see my filter here: https://news.ycombinator.com/item?id=28395232
Is this more legal than just pulling the book off of libgen? I knew someone in middle school who would rent movies from Redbox, rip them and then take them back, and I didn't understand why he wouldn't just torrent them to save the trip.
it's almost as if git is a tool that was designed for software engineers and not accountants
what do you mean allowed?

if the UK wished to retain the bases it would make retaining the land a condition for granting independence, similar to Cyprus

this isn't like Article 50 where after 2 years you're out: the nationalists only method to get what they want is by agreeing to Westminster's requiements, in full

otherwise Scotland continues to remain part of UK
We have to study mathematics before we can understand physics, and we start mathematics by learning Euclid and Pythagoras. The difference between maths and philosophy, and physics, is that the old Greeks were actually really good at the former two.
git has quite an inconsistent cli, this is well covered in "master git". And yes, I said it without proposing a better one.
100% this. It’s like the Wall Street 2008 hate. Fuck the Sacklers, for sure. But they were nothing without all of the “pain clinics” that were shoving pills down addicts throats.
The user says that with ProShot it worked, it would be nice if those photos were provided so that we could look for differences.
We need to make them because most people have a limited understanding of computer abstractions. I love Linux, and use it on pretty much every device I own. Even still, getting comfortable with Linux has a pretty profound learning curve with it's different WMs/DEs. As a developer, I highly appreciate the burden of choice here. End users likely won't feel the same way.
Thanks for sharing, that's neat how simple it is. What air quality sensor setup do you have?
The way I think of the universe is: we are the universe discovering itself, gaining consciousness and trying to figure itself out. Our fears are exactly the same as the universe’s. Our curiosity and wonder, also the universe’s. RN, this universe is a child, maybe a baby, and the way it’s expanding, it’s processes and consciousness will simply be on a much different time/space scale, require less energy (cold dark universe) with better understanding of space time, meaning rn it’s already able to appreciate all of time forever and understands that the point is not to go back and change things but to appreciate all presents. So us humans, we will learn at our pace, and if we go extinct, we’ve played our part, maybe another species someplace else will be better suited to carry on our torch or a completely new and different kind of torch.
I find it a bit questionable that Apple can "ask to track" using their own customized dialog with soft language, but any other developer is forced to use the scary "CONSENT TO BE TRACKED" copy.

Seems to me that Apple should be dogfooding their own dialog here.
I have box fan filters, and a small room Honeywell filter. On the lowest settings, they're about the same, on the highest, the box fan is definitely a little louder (but moves a lot more air).

Turn them down when you're in a room with them - best advice I ever read.
face tattoos
OP's comparison wasn't a homemade filter versus no filter, it was versus commercial options.

I've done box fan filters before, and they certainly help if they're what you can afford or can find in stores, but after enough years of dealing with wildfire smoke this year I invested in commercial units and I am significantly happier.

After doing a fair amount of research, I ended up with a series of Coway units. They're more expensive than box fan filters, but they're smaller and significantly quieter, especially with a sensor-driven auto mode that adjusts fan speed based on detected pollution levels. This means I'm far more willing to leave them on all the time and get the benefits 24/7. The fact that they're multi-stage is a big plus too, particularly with cat hair around. It means that I have to clean the outer charcoal filters more often but the inner HEPA filters only 1-2 times a year. As an added bonus, power consumption is significantly lower than my box fans.
You Need a Novelty Budget (2018)
Due to security concerns of enabling user namespaces[1], I don't run rootless podman containers any more, and my current podman use on my workstation is to run rootful podman containers inside a VM (KVM with virt-manager, actually running Proxmox, which does nested virtualization for podman VM[2].), and configures those containers as systemd services with ansible. I'd really rather just use docker-compose (or a 100% UI clone like podman-compose), but for me the whole point of using podman was to limit the API attack vector, and using the single process model, so introducing the docker API into podman isn't really what I wanted either. (podman-compose doesn't need the API but theres other reasons I haven't used that.)

I think though, you can't really replace docker with podman (without docker API) in a general sense. You just have to treat it as its own container platform. It will work for certain docker containers you've tested reliably, but if you regularly test out random container stuff you will run into problems on a daily basis. But you can use podman for new container development (because you're the one implementing it and avoiding the problems) that will also be compatible with docker. Configuring Traefik on podman has been painful[3] because it relies upon docker labels for configuration discovery (you can still write a static config file without discovery, but gets tedious), and now that there is docker API support it works, maybe no one cares to have a true dockerless podman Traefik provider, but I think that would be neat, and can probably be written with the new providers plugins[4]

[1] https://news.ycombinator.com/item?id=28393949
[2] https://blog.rymcg.tech/tags/proxmox
[3] https://github.com/traefik/traefik/issues/5730
[4] https://github.com/traefik/pluginproviderdemo
I attached a graph from this morning with raw particulate counts here: https://news.ycombinator.com/item?id=28395232
Tesla must deliver Autopilot crash data to federal auto safety watchdog
There was a particularly nasty American west coast wildfire a couple years ago, skies red like a science fiction movie. Air purifiers were sold out everywhere, but you could still get a box fan and a couple furnace filters.
The Sacklers knew what they were doing was evil, which is why all the hate. Also, why ask for lifetime immunity if it was all legit?
Ask HN: Emergency Alerts – Some phones get it, some dont?
As some may have heard there were tornados and flooding in NY/NJ and many areas of the northeastern US. Over a dozen died.

My mom, wife, and I were all sitting at a dining table together when this all happened yesterday evening. My mom's Android phone received over a dozen Emergency Alerts on the tornados and floods.

My iPhone received three alerts. My wife's iPhone received one only.

All our phones have all Notifications enabled, including Emergency Alerts and Public Safety Alerts. We were all on the same WIFI network.

Whey would there be such big differences in what each of us received?
Our economic system is based on how to distribute scarce resources. We are applying this way of thinking to non-scarce resources.

The consequence is previously unimaginable scale and for the owners/gatekeepers of these resources unimaginable wealth.

You are right, we absolutely have to figure out a better way.
that's just laughable considering SVN needs a central repo to work and I can just do "git init ." to create a git repo in any directory at any time I want and is entirely self-contained.

Once an SVN user discovers the magic of a staging area, stashes, or "git add -p" I don't know how they could claim SVN does anything better. All I remember from those days was how slow everything in SVN was. It felt like every command was backed by some horrible O(n^2) operation or really slow network connection.

git isn't hard. FFS, we shouldn't keep seeing these posts hitting HN every week. iptables? That's tough. DNS? No thanks. Managing package.json and keeping an app up-to-date? Git is nothing in comparison to the real challenges I face everyday.
I wonder how many have 100k.

I have 67k, mostly from a few answers years ago to oft-searched questions.
Hey, ksqlDB contributor from Confluent here. In addition to the migration tooling that you mentioned (https://www.confluent.io/blog/easily-manage-database-migrati...), ksqlDB also supports in-place schema evolution (https://docs.ksqldb.io/en/latest/how-to-guides/update-a-runn...). There are some constraints on what kinds of evolution are supported, but it's something we're constantly chipping away at.
In general, the more credible the threat is, the less likely one would have to actually act on it.

Having the ability to defend oneself makes it less likely that one will have to defend oneself.
You literally can't use the site properly when you're not logged in (and I mean basic clicking on retweeted/quoted stuff shows a login page, clicking on people's names shows a login page etc.) - how is that good? (I mean sure, build your walled garden as you please, but then you have no business showing in search engine results.)
Not possible for a single tweet that is deep in a thread of replies. You can only link the topmost tweet
True. This made me realize that being a drug dealer does pay if you sell enough.

P.S. I'm being ironic... sort of.
The taliban are now removing those in the ANA who kept 12-year old boys as unwilling catamites. Perhaps they need US State Dept. functionaries to educate them about the liberal necessity of this practice. Do you think that the late, plausibly democratic, US Gov't supported regime there for the last 20 years was somehow unaware of this problem?
It's incredible how much some people simply do not care about the aesthetics of their living areas.
The only books that I've "pirated" are ones where I own the physical copy and want to read it on a kindle later on.
I doubt that Micay gives a good goddamn about the rest of the Android "ROM" scene — the ones that can rarely allow a secure boot, these are the ones we're referencing, right?
They seem to be done using Excalidraw [0]. I'm not 100% sure about the animated one, probably excalidraw-animate [1]

[0] https://excalidraw.com/
[1] https://github.com/dai-shi/excalidraw-animate
> This was unexpected. I thought the tape would help, but I wouldn’t have been surprised if it hurt instead. Instead, there’s basically no difference at all. I don’t know enough about fluid dynamics to even speculate about what’s happening here, so I won’t try.

The fan pumps as much air through the filters as it will, regardless of whether the areas not covered by fans are taped off or not.
I'm done here. Thanks for your input.
As long as the risk is limited to downvotes, shadowbans and similar virtual punishments the actual risk is zero - which makes me wonder why there is so little dissent in cases where seems to be a clear need.
Man if you're Andy Fastow or Jeff Skilling you must be kicking yourself right now. Post 9/11 I can't think of many white collar criminals actually doing jail time. I guess we'll see where Holmes ends up.

This whole thing is just so infuriating. I feel powerless to affect change against an entire system that increasingly feels like it was designed to protect families like the Sacklers.

Sorry for a political rant on HN...
Or drop in blood oxygen content..?
I use the Library Chrome Extension. If you look up a book on Amazon or some other book search sites it will add a info box about whether libraries that you have added have a book available (or all checked out) and the estimated wait and number of copies. You can add a bunch of libraries. Yes, it should be in the overdrive/libby apps/sites but this is the closest I've found to search many libraries.
Why the U.S. once set off a nuclear bomb in space
A Blueprint for Building Transit Better
China to require foreign vessels to report in ‘territorial waters’
They got the majority of benefit from the sin, and so deserve the majority of the punishment. Anyway the culpability of others isn't an argument to go easy on the Sacklers, but rather an argument to go after the others, too.
I’ll bet someone slapped a common QR code library in there that also matches other barcode types, made a few modifications and didn’t test the unusual types.
Once again, the political and judicial systems are revealed as a farce.
I wish they still did server side rendering for your feed. They switched to all client rendering a while ago and it takes a lot longer to load now. I wonder if the loading speed tradeoff was consciously made or if it was just a fait accompli after some rewrite or another.
And don't forget YotaTech Forums for those older 'yotas!

edit: and now that I've switched teams, I'll plug NPORA (nissan pathfinder off road association).
Ask HN: Source Recommendations for Category Theory?
I am looking for some good sources for an introduction to category theory. Has anyone got any recommendations?
Certainly a dark pattern, but has little to do with the actual usability of the product once you’re logged in.
We just don't use credit cards, in fact many countries have their own payments systems of varying popularity. The only time I need to reach for a credit card is when interacting with US companies.

IMHO credit cards and the systems around them are a remnant of the past. The US just hasn't caught up with the rest of the world yet.
The Sacklers heavily incentivized those clinics to do that
I have one "built" in my house right now. I say "built" as I have simply bungie-tied an air filter to a box fan. I have also hooked it up to one of those analog outlet timers so it's not running the whole day. I'm sure folks on HN could do a much better and more interesting job:

- Rasberry Pi Zero runs PM2.5 sensor.

- Fan is controlled by Raspberry Pi Zero.

- Fan only turns on when PM2.5 levels are over threshold for n seconds.

- Fan only turns off when PM2.5 levels are below threshold for n seconds.

- Add some collection and graphing of PM2.5 levels over time for fun.
It strikes me as a bit unfair for society to turn around, designate them as a scape goat and then ask them to pay for the sins of everyone

They knew the addictive nature of Oxycontin and that tolerance builds up fast, yet they still told sales reps to pressure doctors to always prescribe subsequent amounts be taken at 12 hours intervals (and not at 8 hour intervals to account for the tolerance buildup). That's fucking egregious. The entire family deserves to be put up against the wall.
U.K. Facing Accusations of Climate Failure over BP Oil License
Even if 2FA prevents you from logging in, you still get A LOT of information from a keylogger.

You know the content of all the emails this user writes. You know the websites they visit. Based on the 2FA auth key they use, you may find out what kind of system it is.

A great start for social engineering. The target user writes an email to someone and the day afterwards you can fake call them and pretend to be the recipient of the email (you have all the information). If you're lucky they wrote an email to management and now you can pass orders in this call.
What air quality sensor are you using?
There is already an Arm Cortex M0+ in the end of every USB type C cable for power negotiation.

It has a complex codebase and firmware update methods to migrate to new USB specs. Cheap cables don't even support signing so go to town tampering with stock cables if you are so inclined.

Also an Attiny85 can fit inside just about anything.

My favorite BadUSB hello world is using the Arduino HID library to make a Digispark toggle caps lock randomly with maybe 10 lines of code. Drives people nuts.
The systems tested were from papers that claimed to be more accurate than radiologists.

1. Presumably we are most interested in the 6% that are more accurate.

2. The more interesting part, although not entirely surprising, is that 94% of research is overstated, at best.
The Five Eyes (which includes AU already) has already done this.

In the US, you're crazy if you think your cable modem account, IP history, Apple ID, Facebook account, Instagram account, and Google account aren't all linked to your full name, phone number, DOB, street address and passport number by the NSA/IC.

They consider this to be their job, and they're fairly good at it, because they have access to the large US providers to get whatever data they want.
It's none of their damned business what legal activities their employees engage in at home.
> The Sackler family is conclusively and directly responsible for at least 18,000 deaths in the united states

Do you have a good source for this? I'm genuinely curious. I've heard about the opioid crisis and Purdue Pharma but not this particular family. I see that they were on the board of Purdue. How were they directly connected to the deaths?
Extending our voluntary return to office
I'm not sure what is scarier, the existence of this cable, or the amount of Javascript that this site tries to run when you visit it. According to my NoScript plugin, it's loading Javascript from at least 17 different domains.
HM3301: https://wiki.seeedstudio.com/Grove-Laser_PM2.5_Sensor-HM3301...

Attached over I2C to an ESP32 running ESPHome: https://esphome.io/#air-quality
Which in turn reports to a raspberry pi running Home Assistant: https://www.home-assistant.io/installation/
Took about 20 mins to set everything up.
Ill bet every small time marijuana dealer doing hard time is feeling pretty great about this.
> No issues with deliverability or IP reputation with our self-hosted EC2/Postal SMTP setup.

So that's:

https://docs.postalserver.io/

I'd kind of forgotten about that. Ruby on rails smtp server? Any comment/idea on how it stacks up vis-a-vis postfix or opensmtpd in terms of performance and security?
As I said, a carrier is big. When you're making a guidance system, wether EO or Radar, you're trading off accuracy, senstivity, and range.

In the case of a carrier, you need very low accuracy - in the 10 meter range instead of the centimeter range - very low sensitivity, because the target is positively huge and sticks out like a sore thumb from its surroundings, so you can get range.

Besides, I think you really underestimate modern sensors. A fighter jet can detect a 1m^2 from 100km away almost omnidirectionally. That's around 10 000 sqkm, and that radar is built for very fast targets and requires very high accuracy.

As for communication, you can communicate from a ground station. You don't need to tell the missile where the carrier is constantly. As we've seen before, carriers are big and sensors are advanced. Carriers also can't change course very rapidly. You just need the missile to get a 50km radius of where the carrier will be when it hits it.

These missiles are very fast. From the order to launch until impact you have 12 minutes.
"master git" This is a great demonstration of git's inconsistencies.

I maintain git stacks up well against other similarly mature/complex software (Nginx, AWS, Java), but it's a wonderful read nonetheless.

(And holy hell what a hard thing to search for...can't find the link.)
His book is also out now, Nanobrain: The Making of an Artificial Brain from a Time Crystal

Anirban is awesome and his lab is even crazier
I just took a picture of every Euro banknote (which of course have EURion on them) in my wallet with my Poco Phone (which has the same MIUI version / camera app) and all photos are perfectly normal

But could of course be a special change in this Xiaomi model :-)

The german postal voting documents do, with 99,9% certainty, not include any EURion constellations (---and they have no window, the return address is printed directly on the envelope--- EDIT: they do in cologne! See [1], last image, sorry for the misinformation). Wouldn't make much sense, as the envelope is thrown away immediately and the inner letter (which is not the ballot) contains a unique number per postally voting citizen that's not trivialy guessable.

They are however made from non-bleached (only coloured) recycling paper, so maybe the camera is picking up some artifacts from the different visible paper fibers?

[1] https://imgur.com/a/SCHGo4N
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Apply to our website directly or feel free to email me your resume - nikkie@seesaw.me
>Where do you think these “brain waves” come from?

Propagation delay and circular loops. No it doesn't have to be "external" stimuli. There's no explicit input and output layer in how a real brain is constructed. That is an artificial constraint put on artificial neural nets to make a programmers job easier. A real brain can and likely does have self stimulating loops.

>Just as transistors are fundamental to processors, neurons are fundamental to brains

Transistors are also quite simple as individual units and the computational complexity comes about in how they are connected.
The abstractions depend on the dev. The knowledge needed is considerably less to make an extension vs making a full native app.

RN is useful if you're a solo dev, like myself, or a small team and you want to support all platforms.

I have enough knowledge to get all my apps in production, enough to make extensions for the platforms, and quite a bit in web to remake native features on the web. I am not what I consider an Apple or Android dev though, far from it.

I can learn from a middle out approach when it comes to all platforms. Similar to compilers and such, you can always go lower level to understand more and more, but it's not needed to get your vision out.
I vote (so to speak) for paper ballots and voter ID.

Of course in that case, Roger Stone's guy would have won handily.
You should use a data blocker when using an unknown USB cable to charge your phone. Occasionally described as a USB condom.

Simply a Male to Female USB adaptor with the data wires not passed through.
They stopped it a long time ago unless you satisfy an undisclosed list of conditions
Japan needs a lot more tech workers. Can it find a place for women?