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It still is in most parts of the country: the type of roof and even the type and color of the tiles are mandated in most areas (through the infamous Bebauungsplan)


I'm into watching construction videos on Youtube, and since most of the content originates from the US I see lots of people using spray foam insulation without any sort of air-tight & moisture regulating membrane on the inside (behind the drywall for example). This is a disaster waiting to happen in almost all northern climates during winter (when AC/de-humidification isn't running) for the same reasons outlined in the article here.


It depends on what type of spray foam you use. Closed cell foam is rated to be a moisture barrier. It tends to be more expensive but is worth it to get a moisture barrier and insulation in one. In some scenarios where you need much thicker insulation to hit your desired R value they might start with closed cell for the moisture barrier and then switch to open cell since it is cheaper.


The problem is air escaping from the hot side through "cracks" or holes and causing condensation as it reaches the cold side.

In nordic standards, there must be an air-column between the insulation and the outer "cold" layer, to ventilate out any moisture that might get trapped there. There must also be a moisture barrier between the "hot" side and the layer of insulation, typically a PE-sheet, to prevent air from leaking into the insulation.

Since the wood expands/contracts with changes in temperature and humidity, filling compartments in wood constructions with foam does not guarantee air tight barriers.


Closed cell foam will trap moisture underneath it. When sprayed on wood which is naturally moist that water will have nowhere to go. Any delaminations of the foam from the substrate will form pockets where wet will concentrate, and as the foam breaks down it becomes acidic.

If I were to sprayfoam something I would only consider using open cell foam. If I were to use other impervious zero-perm insulation materials like rockwool I'd only do so with dimple board to allow air underneath. The small loss of efficiency is a necessary tradeoff for giving the moisture which will always be there a path to escape.


Spray foam doesn't remove the need for a designing a proper insulation and moisture barrier system for the building. If you spray foam an interior wall with closed cell foam you most likely will add something to allow the other side of the wood to breath.

Choosing where your moisture barrier line lies is typically easy in new construction but does get tricky with retrofit situations. It sounds like the biggest issue from the article is that they are taking what were vented attics and converting them to non-vented attics with spray foam. The issue isn't really the spray foam, the issue is converting an attic without proper understanding of venting and moisture barriers.


Pretty awesome. I love Bazel and it seems you're making good use of it. It's such a difference seeing everything hermetically integrated with all workflows boiling down to a Bazel command.


Yep. We can't migrate our workstations to Ubuntu 24.04 because Crowdstrikes falcon kernel modules don't support the kernel version yet. Presumably they wanted to move to EBPF but I'm guessing that hasn't happened yet. Also: I can't find the source code of those kernel modules - they likely use GPL-only symbols, wouldn't that be a GPL violation?


Why would you use Crowdstrike on Ubuntu? Is because of a real security concern, or abiding to regulations (thou shalt have an antivirus) or else?


I was given to understand that Crowdstrike provided some protection from unvetted export of data. I'm not sure that data would be useful without the rare domain expertise to use it, but I wasn't shown the risk analysis. And then someone else demands and gets ssh access to GitHub. Sigh.


Ask my IT dep. AFAIK it's audit related, safety-critical software


I think "compliance" would be a better word to use that "safety" when it comes to a lot of "security" software on computers.

And I bring up the distinction because while compliance is "sometimes" about safety, it's also very often about KPIs of particular individuals or due to imaginary liability for having not researched every possible "compliance" checkbox conceivable and making sure it's been checked.

Some computer security software is completely out of hand because its primary purpose is to have the appearance of effectiveness for the exec whose job is to tick off as many safety checkboxes as they can find, as opposed to being actually pragmatically effective.

If the same methodologies were applied to car safety, cars would be so weighed down by safety features, that they wouldn't be able to go faster than 40km/h.


Just to be safe, of course! In my org they try to rollout sentinel one on every ‘endpoint’ regardless of operating system.


Probably only a violation if you distribute the linked result. Not if you only install it.


How would you install it without them distributing it?


They mean distributing Linux + the module together. Like e.g. shipping the Nvidia kernel module alone is fine, but shipping a Linux distro with that module preinstalled is not fine.


Two different "it". As an analogy: selling pizza Hawaii is dicey, but you can sell pineapple slices and customers can add those to their pizza themselves.


> We can't migrate our workstations to Ubuntu 24.04 because Crowdstrikes

Should you upgrade before 24.04.1 is released? It's scheduled for August 15.


IIRC, about a 12-18 months ago CrowdStrike was recruiting for a development with eBPF skills.


The generally accepted (but not well tested) legal position is that it's ok to have a proprietary kernel module that is dynamically loaded.

You can, for instance, ask a running kernel if it is "tainted" by having loaded a non-GPL module.


Last time I dealt with HP, I had to use their fakeraid proprietary kernel module which "tainted" the kernel. Of course they never open-sourced it. I guess it's not necessary.


GPL exported symbols are the ones that are thought to be so tightly coupled to the kernel implementation that if you are using them, you are writing a derivative work of the kernel.


Yeah that was also my understanding, and I can't imagine a av module able to intercept filesystem and syscalls to be only using non-core symbols. But of course you never know without decompiling the module


> and I can't imagine a av module able to intercept filesystem and syscalls to be only using non-core symbols.

I can, considering that you can do that from user space using strace. Or ebpf which is probably the actual right way to do this kind of thing.


My past three employers code bases: mono-repos, Bazel, lots ot C++ and Python, thousands of libraries and tools, code generation and modeling tools that are fully integrated into the build, easy cross compilation, large integration tests just one bazel test invocation away, hermetic and uniform dependencies...


Bazel Python does not cross compile IIRC. How was this achieved?


Python is only used for build-time tooling (modeling, code generators) and developer tooling. All the on-target code is C and C++, and only that is cross compiled (Linux, QNX, various RTOS and x86+aarch64)


They picked individual statements out of context, see https://www.volksverpetzer.de/faktencheck/habeck-rechte-pseu...


Volksverpetzer is heavily funded by government funded NGOs. I have yet so see an example of journalistic vigor on VP. A lot of their sources lead to publications with similar financial dependencies.

I don't know why anyone would take them that seriously.

VP's "credits" consist mostly of tweets and quotes from some political celebrities: https://www.volksverpetzer.de/credits/


Location: Nuremberg/Germany

Remote: Yes for the past 5 years

Willing to relocate: No

Technologies: C++, Python, networking, automotive standards and protocols, robotics, embedded, real-time, Linux, QNX

Resume: Staff level, 10y+ experience, worked mostly for US-based startups with Munich offices in automotive/self-driving/robotics during past 5yrs, tech lead/architect but always also as IC. I'd say I'm pretty good at finding the right balance between what is best and what is needed. I love getting the full picture and being able to utilize this in designs. Open to full time remote or a x-days-a-month hybrid model if office is near Munich or Nuremberg

Email: <my username here>@imap.cc


1000 km/h booster impact at sea, call that a "soft landing/splash down". Poor fishies :)


Hopefully the NASA flight monitoring the launch has video of the booster coming back down.


The WB-57 was not in the air today.


I guess they didn’t want to make it too easy for some Chinese fishing vessels ;)


Chinese fishing vessels in the Gulf of Mexico?


Illegal fishing by Chinese fleets is now commonplace in Africa, in Argentina, etc [0], so given how much they've expanded operations over the years it's only a matter of time before you see them there too, if it hasn't happened already.

[0] https://www.nytimes.com/interactive/2022/09/26/world/asia/ch...


Some species are rare. You need to look in the right places if you want to catch some fine raptors.


On shores of Africa, in Gulf of Mexico... yes, in 2024 ships can travel far


Probably even in Lake Superior.


I was going to write that a boat could get from the ocean into Lake Superior without ever entering the United States (by hugging the Canadian side of all lakes and rivers), but it appears that there is a dam on the St Lawrence River near Cornwall Ontario that forces you to take a short <10 mile detour through a river/canal in New York.


They are on vacation.


It does look like it came down rather fast. Engines only partially re-lit. About 34min in this video

https://www.youtube.com/watch?v=NWM1NQ1tZEU&t=2112s


I think that's the ascent burn. It doesn't look like the engines re-lit at all for the descent. (I imagine they aren't supposed to light until they're a lot closer to the ground than they were when the video was lost.)


At altitude 22km superheavy was moving at 4310 kmh (34:18 in linked video) speed then dropped continually, at 34:45 in the video the icons show that 3 engines were lit, altitude was 1km and speed was 1300 kmh. At 34:49 you can see flames, speed continues to drop, then you see the sea rushing up, then it cuts


Ah, I was thinking about Starship. I forgot that the booster attempted simulated landing was going on at the same time.


Same here, if your "compact" mode is way less compact than what you had before you're doing it wrong Jetbrains. Information density is key when developing


That magic moment in Karpathys first video when he gets to the loss function and calls backward for the first time - this is when it clicked for me. Highly recommended!


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