## Gmail filter to act on old messages

I receive frequent email notifications from our home security cameras. I’m happy when they come in, but after a day or so I’d like them archived to a specific folder (untag Inbox, tag with a specific label).

I’m aware of the older_than:1d search option. It does not seem to stick when saving search criteria as a filter. The result filter captures all incoming email, thus I don’t see the security alerts in my inbox.

I am aware of this question being asked previously (Is it possible to setup a filter in Gmail to delete message older than one month?). This question is nine years old, and since Gmail has changed substantially since I’m hoping there may be new options available.

Another option I’ve considered is scripting something on my IMAP client, but I prefer things like this happen server-side.

## gps – Best Android Auto app to act as a vocal guide during car trips?

Does anyone know of an Android Auto compatible app that functions as a vocal guide during car trips? I’d like to be able to ask questions like “tell me about this region,” and get information about its culture, geography, history, current events, etc., and, of course, worthwhile sites.

When I ask this question to Google Assistant, I get a postal code of the local town. It suggesting to read out some Wikipedia highlights would be perfect.

Anything like this exists?

## PoSH act 2013

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## Bridge two (virtual) NICS to act as a switch – Ubutnu Server

I am running a virtualized Ubuntu Server 20.4 (Hyper-V). In this VM there are two NICS (each bridging real NICS X550), which I am trying to bridge, to act a switch”, meaning if I connect a cable to the second port, it gets DHCP IP adress etc. The sole purpose of this VM is to act as a switch. So I found a ton of tutorials, however none of them works. The bridge does not obtain an IP, and after a restart its gone, despite me having changed the interfaces in /etc/. The idea to change netplan sounds appealling, however the tutorials I found were only with one NIC; bridging for KVM. So not my use case.

What can I do? Thanks in advance

## dnd 5e – What happens when initiative allows a player to act before the player that started the combat?

This example is a somewhat simplified version of what happened during the last game I DMed for a bunch of friends. A party of PCs was trudging through the woods when they happened upon a very small outpost in a clearing containing hostile elves. The rogue goes and checks it out, and sees two hostiles patrolling, one near the northern edge of woods (Elf1), one on a stone platform about 15 ft from the southern edge of the forest (Elf2).

The rogue goes back and relays the information. If the warrior of the party would simply trudge into the middle of the clearing, all enemies would be aware of a threat and the enemy wouldn’t be surprised. They want to start combat with an edge, so they formulate a plan that would cause the enemies to be surprised: the rogue will go stealth up to the northern edge of the clearing, wait for Elf1 to get close, and sneak attack him. When that happens (it’s a small clearing, so it’s within his vision) the warrior in the party, who will attempt to sneak up to the southern edge of the forest, will run for Elf2 and beat him up. They both roll great stealth checks and head to their positions. So far so good.

The rogue waits for Elf1 to get close and attacks with his short sword. Time for combat, and this is where things got confusing, and where a discussion broke out between players:

According to page 189 of the PHB:

1. Determine surprise — Both Elf1 and Elf2 are surprised, because they didn’t notice any threat.
2. Establish positions — Should be clear from the description of the situation above.
3. Roll Initiative — The warrior gets a 20, Elf2 a 15, the rogue a 5, and Elf1 a 1.
4. Take Turns — The warrior can go first. However, as the party discussed before, he was supposed wait until he sees the rogue hit Elf1. The rogue’s attack is what started the combat encounter, yet the attack hasn’t been resolved yet due to his poor initiative roll. And you can’t delay your turn in 5th edition.

Option 1: Some people at the table argue that he can’t yet run into the clearing because that would pose a clear and noticeable threat and the elves would not be surprised. He should wait for the rogue to hit Elf1 and use the Ready action on his first turn. This option seems to punish the warrior for rolling well on his initiative.

Option 2: As determining surprise occurs before the initiative roll according to page 189 of the PHB, I would argue that the rules support that the warrior should be able to run up to Elf2 and hit him, without breaking surprise. The fact that the attack that caused the surprise hasn’t yet been resolved and that this goes somewhat counter against their agreed plan of waiting for the rogue to hit Elf1, makes this option incredibly unintuitive though.

Which of these options is the correct one? Or is there a hidden option 3?

## rt.representation theory – Are there cases in which the Weyl group _does_ act on the flag variety/springer fiber?

In nearly every reference on the classical springer correspondence (for example Chriss/Ginzburg’s book on Complex Geometry) it is stated that the action of the Weyl Group on the homology of the springer fiber is not induced by an action of the Weyl group on the fiber itself. But I couldn’t find any reference or general statement that would make this precise (and I’m just learning about geometric representation theory so I don’t have any good intuition/working knowledge).

For concreteness (and I think this should be a simpler case), consider the springer fiber over zero — then $$mathcal{B}_0 = mathcal{B} = G/B$$ is the flag varitey (where $$B$$ is a Borel subalgebra). Now there is an action of the Weyl group $$W$$ on the quotient $$G/T$$ (where $$Tsubseteq B$$ is a maximal torus, which allows to write $$W = N_G(T)/T$$). Now in Yun’s notes, (1.5.4), he writes that the map $$G/Tto G/B$$ is an “affine space bundle”, that this implies that the their homologies are isomorphic and that under this isomorphism, the action of $$W$$ on $$H(G/T)$$ gives the springer action of $$W$$ on $$H(mathcal{B})$$ (I couldn’t find a reference for that though). But I don’t see why there should be no way to use this projection to define an action of $$W$$ on $$mathcal{B}$$.
Also, in “Schubert cells and cohomology of the spaces $$G/P$$” (1973), Bernstein Gelfand and Gelfand construct in chapter 5 a correspondence that gives rise to the springer action. I was hoping that this very explicit construction in the paper would shed some more light on what’s going on, but I haven’t been able to do that myself.

Any help, and also references, are really appreciated.

## data structures – Can array list act like tree?

I’m talking about data structures tree, we know that there’s parent and children which branching each other.

I feel if we save data to tree is same like multidimensional array.

What am i talking about is array in high level program language that no need declare size of array.

``````Tree=[vehicles]
vehichles=[cars,planes]
cars=[mustang,ferrari]
planes=[boeing788,boeing789]
``````

we can say index 0 of array tree is parent

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## built in symbols – What could go wrong in redefining Power to act on functions?

Inspired by a tweet (from a locked account, unfortunately, so I can’t link it), we can get notation like $$cos^2(x)$$ to work in Mathematica in general:

``````Unprotect(Power);
Power(f_, n_)(x___) := Power(f(x), n);
Protect(Power)
``````

Weirdly, so far, I can’t think of anything this would break, since—as far as I can tell—`Power(f_, n_)` is never otherwise expected to appear as the head of some other expression. It seems like this might actually be a convenient choice.

Is there any chaos this could cause that I’m not thinking of?

## Making Keyboard Shortcuts act Universally (No Matter the Language)

I would be really grateful if someone could give me some guidance!
I am trying to set up some shortcuts. The thing is that Ubuntu responds differently, according to the input language, specified by the user. Like yesterday, when I tried to set up the shortcut for thr terminal, hitting the letters alt+c the output was alt+greek_psi, taken from the greek language that I had at the time.
As I have imagined, later inputs for the terminal corresponded only when I had switched to the greek keyboard.
I have distro hoped for many years. This is something that I am facing for the first time. Linux mint as an example, when I pressed alt+c, no matter the language was, was behaving “universally”.
How can I have again the same behavior here, so my different shortcuts act “as is” no matter the language interface?