Sekoia

joined 2 years ago
[–] Sekoia@lemmy.blahaj.zone 6 points 1 week ago

Every time I read it I think "well, I remember it, it's not going to be as funny"

And every time the steady rising tempo with no breaks just. Completely kills me halfway through

[–] Sekoia@lemmy.blahaj.zone 11 points 1 week ago (1 children)

Personally? Vibes. Specifically, it feels very... uniform. Like, a human artist good enough to draw like that would be better at composition, I think?

More practically, even the newer ones struggle with specific shapes; look at the arch, no human would draw that weird hybrid of an arch and a... semi-donut?

Older models struggle with lining stuff up and keeping things straight over long distances. The latest ones struggle with constant curvatures.

[–] Sekoia@lemmy.blahaj.zone 25 points 2 weeks ago (1 children)

It's (genuinely) interesting that big-time AI enthusiasts always assume that if you dislike AI, it's because you don't know how to use it (and not because they have different priorities or have conceptual issues with it or such). It was the same thing with crypto and NFTs.

I know a good amount of very skilled developers who tried AI several times in different contexts, and always found the tradeoffs much too bad to be worth it (in terms of accuracy, precision, cost, speed, whatever), and yet they still get "oh you just haven't tried my favorite AI tool".

[–] Sekoia@lemmy.blahaj.zone 3 points 3 weeks ago (1 children)

I wasn't around when it happened, what did he do?

[–] Sekoia@lemmy.blahaj.zone 25 points 1 month ago (1 children)

It's to get around a bug on some platforms where the Referer header isn't set properly. Basically when you click the link in the app (maybe other platforms too idk), it can't set the Referer, so website statistics can't know what came from bsky. This was in their changelog. It used to already work correctly on desktop, though.

[–] Sekoia@lemmy.blahaj.zone 26 points 1 month ago (4 children)

Not related to the specific post but is it me or does american media treat literally everything as "Breaking News"

Like nothing about this is urgent you can wait until the evening news to talk about it. You'll even have more information by then!

[–] Sekoia@lemmy.blahaj.zone 2 points 1 month ago

Lol, neat. Should have said "has less than 2 solutions" or smth ig.

[–] Sekoia@lemmy.blahaj.zone 5 points 2 months ago

It's anarchy for the hierarchies, not for the components of the hierarchies

[–] Sekoia@lemmy.blahaj.zone 1 points 2 months ago

Fair enough! The disadvantage is that, as opposed to Dropbox and similar, I have go into a file at the root of the synced folder, rather than keeping that config near to where itcs relevant.

Thanks for the names!

[–] Sekoia@lemmy.blahaj.zone 3 points 2 months ago

That's... a very good idea. I should do that anyway.

Forgejo for projects and syncthing for data is probably perfect, thank you!

[–] Sekoia@lemmy.blahaj.zone 1 points 2 months ago

I tried with both, but I didn't figure out how if such an option exists. I did manage to do the opposite (keeping files uploaded but not having them locally), both with and without VFS (with VFS it's in a context menu in nautilus, without it's in the desktop app).

 

Hey,

I want to be able to access my projects from my laptop and my desktop, without syncing build folders (patterns are okay for this) or large data folders (manually selected is preferable for those). A bonus would be to be able to selectively keep files remote to use less storage space.

I also want to sync some regular documents and class notes, but everything is able to do that at least.

Syncthing "works" for this, but it doesn't have a web file browser or a "main" hoster, so I don't think it's quite the right tool.

I recently installed owncloud, and its desktop sync can almost do this, but it can't keep files local without uploading them (otherwise it seems pretty good!). Seafile hasn't worked at all for me, and ime nextcloud is decently painful and has way too many features I don't need at all.

Am I using the wrong tool for the job? Is there a way to accomplish what I want to accomplish?

 

Spoilers and explanation of solution:

Each vertex here is one intersection in our hike. We don't actually care about the parts in-between, because there's only one way to go. The above is a visualisation of the final path, the red edges are the edges taken. Our graph looks "like that" because it's a hiking trail, not a maze, so there's no dead ends. This took about 2 seconds to generate, due to all the cloning needed to keep track of paths. The two veeery long edges on the ends are pretty obvious choices, but one might notice that pretty much every vertex takes the two maximum paths it has, given the restrictions of the path. There's still some mildly surprising paths, such as (99, 29) -> (89, 37) with a weight of 38. I'm wondering if there's a way to dismiss more paths... This graph is actually pretty free in terms of movement.

My actual solution takes ~150 ms to run (and 8 microseconds for part one with barely any optimization, damnn)

 

Anybody got some ideas to optimize today? I've got it down to 65ms (total) on my desktop, using A* with a visitation map. Each cell in the visitation map contains (in part 2) 16 entries; 4 per direction of movement, 1 for each level of straightaway. In part 2, I use a map with 11 entries per direction.

Optimizations I've implemented:

  • use a 2D array instead of a hashset/map. No idea how much this saves, I did it in the first place.
  • the minimum distance for a specific cell's direction + combo applies for higher combo levels as well for part 1. For part 2, if the current combo is greater than 4, we do the same*. Gains about 70(!!) ms
  • A* heuristic weighting optimization, a weight of about 1% with a manhattan distance heuristic seems to gain about 15 ms (might be my input only tho)

*Correctness-wise: the reason we're splitting by direction is because there's a difference between being at a cell going up with a 3 combo but a really short path, and going right with a 0 combo but a long path. However, this is fine because a 3 combo in the same direction as a 0 combo is identical, just more restrictive.

Optimizations that could be done but I need to ensure correctness:

the same optimization for the combo, but for directions. If I'm on a specific combo+direction, does that imply something about the distance for another direction? Simply doing the same for every non-opposite direction isn't correct

Code: https://codeberg.org/Sekoia/adventofcode/src/branch/main/src/y2023/day17.rs

Warning: quite ugly, there's like 8 copy-pastes for adding to the queue

 

Is there a way to measure performance without depending on the hardware, i.e. two entirely different computers get the same score for the same code?

I could probably run the program on a server or something, but something local feels more reliable.

 

My Intel NUC server just died (whenever it's plugged in, it makes a buzzing noise, and the external power LED is off (the internal one is on tho)), so I need a new server box. Any recommendations?

I can salvage the RAM (16 GB DDR4) and hard drive (1TB HDD) off of this one, I believe.

 

So, I live with my parents, and I recently (a few months, but I've been using it a lot more the past few weeks) set up a personal home server on an intel NUC I got secondhand (which I wiped and all). We have 2 routers/access points (idk the terminology; two boxes with antennas that we can connect to, both for the same network, one of which is connected to the house internet and the other connected to the first via a 5 GHz connection iirc). My server is connected via ethernet to the secondary AP.

Anyway, my parents have been complaining about my server maybe causing issues with the internet. We've been having issues forever, but this is "new issues", and I can't actually guarantee it's not because of it so I kinda have to look into it. The symptoms are:

  • General connection issues (these I'm pretty sure are not any different)
  • On one phone, "suspicious activity detected" when connected to the network, automatically disconnecting the phone (this does seem actually new, and potentially actually caused by it)
  • On one laptop, refusing to connect/disconnecting automatically.

The most recent significant change to the setup was connecting my server to cloudflare/with a domain name instead of accessing raw ports with a tailscale IP. The setup is:

  • Docker containers for everything
  • Traefik reverse proxy
  • Cloudflare tunnels for each service (IP is dynamic and we're behind a NAT, so this was easiest)
  • Only non-login-required service is nginx serving a few kB of plain HTML/CSS.

Because I'm using cloudflare tunnels my external IP has, as far as I know, never been exposed and has never been in DNS.

Could any of this cause these issues, particularly the android warning? If so, is there a fix? If not, what could be causing that?

 

I have a few selfhosted services, but I'm slowly adding more. Currently, they're all in subdomains like linkding.sekoia.example etc. However, that adds DNS records to fetch and means more setup. Is there some reason I shouldn't put all my services under a single subdomain with paths (using a reverse proxy), like selfhosted.sekoia.example/linkding?

 

According to https://lemmy.blahaj.zone/post/72658 I shouldn't be able to post but if you can see this...

 

I just want to say that the admins here are great and deserve appreciation, especially during this whole kerfuffle with Reddit :)

Have a good one, mods and admins!

 
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