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HelloRoot

@ HelloRoot @lemy.lol

Posts
2
Comments
414
Joined
1 yr. ago

  • New to Linux which OS to use?

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  • Linux filesystems exam time:

    section A basics

    1. what does CoW stand for?
    2. evaluate through pros and cons which you personally would pick: Btrfs, ZFS, F2FS, bcachefs, OverlayFS, aufs, Nilfs2, JFFS2, UBIFS

    section B btefs

    1. what exactly happens when running this command, including how qgroups, compression, and recursion interact?

     
        
btrfs balance start -dusage=5 -musage=20 -c zstd \
    --bg /srv/vms && \
btrfs qgroup limit 50G /srv/vms/guests/win10

    1. explain the effect of the following command on device allocation, RAID reshaping, and metadsta distribution:

     
        
btrfs device add -f /dev/nvme2n1 /home && \
btrfs balance start -mconvert=raid1 -dconvert=raid1 -sconvert=dup /home

    1. describe what this snapshotting pipeline does, including send stream structure, parent selection, and how receive-side overwrites are handled:

     
        
btrfs subvolume snapshot -r /opt/app /opt/.snaps/auto-$(date +%s) && \
btrfs send -c -p /opt/.snaps/last-full \
    /opt/.snaps/auto-$(date +%s) \
    | ssh backup 'btrfs receive -f /backup/opt/incoming'

    1. what actions occur on the filesystem when this defrag call is executed, especially regarding extent sharing and how compression interacts?

     
        
btrfs filesystem defrag -r -v -czstd:15 \
    /var/lib/docker/overlay2

    1. analyze subvolume management sequence, including how default-subvolume selection influences mount behavior:

     
        
btrfs subvolume delete /mnt/root/@old && \
btrfs subvolume snapshot -r /mnt/root/@clean /mnt/root/@ && \
btrfs subvolume set-default 256 /mnt/root

    section C zfs

    [...]

    /s

  • I'm doing something wrong; can't print this PETG

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  • Never heard of Kingroon.

    I'd try a known good company first.

    I once had a nightmarish time with some cheap filament and thought my printer just can't do PETG well. Then I got a good roll from a different company and it printed even cleaner than PLA...

  • Code vibe check

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  • overwriting [] seems like readability nightmare.

    Won't something like this work more clearly?

     
        
extension NullCall<T> on T? {
  R? let<R>(R Function(T) f) => this == null ? null : f(this as T);
}

void example() {  
  int? n;  
  n.let(math.sqrt);
}

    This kind of immitates Kotlin let.

  • This Week in Plasma: UI and performance improvements

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  • Cursor AI, operated by ...

    dang son

  • what do you use to add weight?

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  • I used wheel balancing weights (tiny 5g iron bars) and built them into my prints.

    They are pretty cheap and the included adhesive makes it so they don't rattle around inside if the tolerances of the cavity are not perfect.

    Used them in the base of a tall slim model to make it less prone to tipping over.

  • People using Cloudflare, are you still happy with it? Would you consider any self-hosted alternative?

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  • People using Cloudflare, are you still happy with it? Would you consider any self-hosted alternative?

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  • you bought one? Like in - one time payment with infinite time ownership?

  • Your old android phone is begging to be a cheap home server!

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  • my 2 old phones (usb c) were both replaced because of hardware issues.

    one has a broken power button that is constantly detected as being randomly spam pressed, so as soon as it gets power if it ever manages to boot it either hard reboots itself or tries to call emergency services.

    the other has a flaky usb c that constantly connects and disconnects unless you hold it at a specific angle and the battery is like a step away from meltdown - it can hold charge for a couple minutes.

    I'd be afraid to leave either plugged in at home.

    I guess the article is for people that buy a new phone for fashion, not need.

  • Decent 3d scanners under $1000

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  • I guess iphone (one with lidar, so one of the pro models, but it can be as old as 12) with a 3d scanning app might be the best general purpose in this price range...

    Whats also interesting are diy rotating bed scanners like https://fabscan.org/ which come at 200-400$

    There are a ton of apps and rotating table diy scanners so you can look around.

    Afaik hand guided 3d scanners are way more expensive and start at like 3000$.

    EDIT:

    some quick googling showed relatively positive sentiment about the rebopoint products. There is one that is exactly 1k https://www.revopoint3d.com/products/3d-laser-scanner-metrox but you're in for a software license subscribtion after a year of included use...

  • KDE's start menu bugs make it feel 100x slower than it is

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  • arch

    no

    I found it pretty easy to see with thedynamic examples. It flashed "no result" for a second before showing a result for example, happened, especially the first time when searching something after a fresh boot.

    For a static example - what the fuck is this result ordering? What do any of those apps except keepass have to do with "ke"?

    here is another, when I want to start teamspeak, steam is the first result like WTF?

    I find it is absolutely insane and deranged UX that the results where the app name STARTS with the entered substring are not at the top of the list.

  • KDE's start menu bugs make it feel 100x slower than it is

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  • I tried to reproduce those out of curiosity for a couple of minutes without much effort and I immediately saw that I have about 40% of those...

    But the other 60% seem weird and my menu refused to behave like that. Maybe thats just luck, maybe it depends on version and distro. idk.

    Very interesting and detailed post regardless.

  • Which command substitution do you prefer in shell scripts: backquotes `` or $() syntax?

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  • never backquotes, it's unintuitive

  • Map of services

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  • How is it a map and not a list?

    Like, are the containers related somehow?

    If you just want to know whats running, there are a ton of docker autoexplore dashboard out there. But I don't think they output a map, just a list.

  • Where do I even start?

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  • Start by searching for how to selfhost a photo storage backup. There are multiple ways to do it and the decision depends on your circumstances and preferences, which only you know.

  • 3 games you can play in the Linux terminal

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  • afaik you can still run the free version from the website with TEXT mode and ncurses completely in the terminal without a DE (but you have to spoof X).

    If not the newest one, then the last one (v47).

  • 3 games you can play in the Linux terminal

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  • WHERE THE FUCK IS DWARF FORTRESS

  • Deleted

    [Sponsorship Request] JPlus: A New Tool for Java Developers, Small Support Needed

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  • Yoy won't find your target audience here on lemmy.

    Instead you should look for companies that have open job/freelancer positions for maintaining legacy java code and pitch your project to them.

  • Made an alternative to Tailscale + Gluetun

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  • Make Your Java Code Null-Safe Without Rewriting

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  • You say:

    Groovy is not 100% identical

    Then you say:

    JPlus aims to keep Java syntax almost intact

    Which implies that it is not 100% identical either.

    So why do you apply that same argument against one but not the other? Seems like marketing bs.

  • Low cost continuous fiber 3D printer

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  • I mean... the printer itself costs ~2500 ... I was out before the spool