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Can i add a app to gparted iso?
  • I think you can mount an ISO image under your running system and make changes. I found a couple of guides that might be helpful:

    How to Mount an ISO File on Linux

    Edit and repack .iso bootable image

    I haven't done this before, but I think you can chroot into the mount directory, and run package manager commands in the mounted image to install another package.

    Or I have an alternative suggestion that might or might not be easier. I've been hearing a lot about immutable/atomic distros, and people designing their own images. You could make your own ublue image, for example, with whatever you want on it.

    A promising looking starting point is github:ublue-os/startingpoint. Ignore the "Installation" instructions, and follow the "ISO" instructions instead.

    Or I saw recently an announcement of a new way to build atomic images that is supposed to be easier than ever, BlueBuild

  • Removed
    Why did we move from startrek.website to Lemmy.world? I guess I'll stay behind and try to maintain the pleasure planet
  • Oh is that where all the memes went? My instance isn't federated with lemmy.world so it just looked like the star trek energy vanished.

    While I'm here... I finally finished season 4 of Discovery. That show has been getting much stronger as it goes on IMO. I especially enjoyed the last ~3 episodes! I also like the take on the "villains" of the late season (the two humanoid ones). It's a refreshing departure from unsympathetic, plain evil antagonists.

  • Have you ever had a phone's flashlight LED just fail?
  • LEDs should last for tens of thousands of hours. There may have been a manufacturing defect in OP's case.

  • There’s a fast new code editor in town - Zed
  • It scrolls smoothly, it doesn't snap line by line. Although once the scroll animation is complete the final positions of lines and columns do end up aligned to a grid.

    Neovim (as opposed to Vim) is not limited to terminal rendering. It's designed to be a UI-agnostic backend. It happens that the default frontend runs in a terminal.

  • There’s a fast new code editor in town - Zed
  • I don't know if it's your cup of tea, but Neovide provides smooth scrolling at arbitrary refresh rates. (It's a graphical frontend for Neovim, my IDE of choice.)

  • capitalism, everybody
  • A credit system is an essential piece of a robust economy

  • Nuclear fusion reaction releases almost twice the energy put in
  • (This is probably explained in the article, but I don't have a subscription.) The National Ignition Facility (NIF) creates fusion by bombarding a fuel capsule with lasers. The laser beams are reflected many times to build up energy, and to converge on the capsule. There is energy loss during that process so the laser energy that goes into the capsule is a small fraction of the electricity used to fire the lasers. When they say they got twice the energy out, that's compared to the laser energy going into the capsule, not the energy required to fire the lasers. So its a long way off from a practical power plant, but still important progress.

    The purpose of the NIF is to study what goes on inside the capsule - for better understanding, and to figure out how to get the most possibly energy out of a fusion reaction. Once they have figured that out a possible next step is to design a system that delivers laser beams with less input energy. It's easier to do that after you know the ideal way for beams to interact with the capsule. Or maybe we never build a power plant based on the NIF design, but the findings help to make other reactor designs work.

  • egg cracking rule 🏳️‍⚧️
  • If I'm doing more than one cracking two together is best. For the last one, countertop.

    I get the flat, inside-the-sink idea. But I'd want to clean either way, and I clean the counters more often than I clean the sides of the sink.

  • The overlap between package managers and automation frameworks
  • Well you're really feeding my Nix confirmation bias here. I used to use Ansible with my dot files to configure my personal computers to make it easy to get set up on a new machine or server shell account. But it wasn't great because I would have to remember to update my Ansible config whenever I installed stuff with my OS package manager (and usually I did not remember). Then along came Nix and Home Manager which combined package management and configuration management in exactly the way I wanted. Now my config stays in sync because editing it is how I install stuff.

    Nix with either Home Manager or NixOps checks all of the benefits you listed, except arguably using a "known" programming language. What are you waiting for?

  • Niri: scrollable-tiling Wayland compositor
  • For the PaperWM fans, this is a dedicated WM based on the same idea

  • Other than filling with plaster and taking a cast of your bits, what use do you suggest for large glass jars?
  • AFAIK the best thing you can do to improve your coffee-freezing process is to prevent moisture from getting into the beans when you thaw. If you let it, moisture from the air will condense on the cold beans. So keep the beans in a closed, airtight container until they come to room temperature. (Airtight because water vapor is air.) So yeah, jars are good for this. Or sealed freezer bags should work too.

  • P. monoica
  • Pseudoflowers?? That sounds like quite an elaborate adaptation! I suppose that's to co-opt pollinators to spread spores?

  • Has anyone managed to get Krita G'MIC working with Nix?
  • I haven't used Krita. But I can tell you that those wrappers are "options" defined by NixOS modules. There is documentation for writing them in the NixOS Manual.

    Built-in NixOS options are documented in the Configuration Options Appendix with links to implementations which provide helpful examples when writing your own options.

  • Ansible is a tool that allows administrating hundreds or thousands of machines
  • Hmm, good point. But it was Ursula Le Guin who coined the word. Maybe there's a workable reference in Left Hand of Darkness, or The Dispossessed.

  • Immutable Distros: What you should know - An introduction into image based systems (Part 1)
  • Well ok, they both use symlinks but in different ways. I think what I was trying to say is that in NixOS it's symlinks all the way down.

    IIUC on Fedora Atomic you have an ostree image, and some directories in the image are actually symlinks to the mutable filesystem on /var. Files that are not symlinks to /var (and that are not inside those symlinked directories), are hard links to files in the ostree object store. (Basically like checked-out files in a git repository?)

    On NixOS this is what happens if examine what's in my path:

    $ which curl
    /run/current-system/sw/bin/curl
    
    $ ls -l /run | grep current-system
    /run/current-system -> /nix/store/p92xzjwwykjj1ak0q6lcq7pr9psjzf6w-nixos-system-yu-23.11.20231231.32f6357
    
    $ ls -l /run/current-system/sw/bin/curl
    /run/current-system/sw/bin/curl -> /nix/store/r304lglsa9i2jy5hpbdz48z3j3x2n4a6-curl-8.4.0-bin/bin/curl
    

    If I select a previous configuration when I boot I would get a different symlink target for /run/current-system. And what makes updates atomic is the last step is to switch the /run/current-system symlink which switches over all installed packages at once.

    I can temporarily load up the version of curl from NixOS Unstable in a shell and see a different result,

    $ nix shell nixpkgs-unstable#curl  # this works because I added nixpkgs-unstable to my flake registry
    $ which curl
    /nix/store/0mjq6w6cx1k9907vxm0k5pk7pm1ifib3-curl-8.4.0-bin/bin/curl  # note the hash is different
    

    I could have a different version curl installed in my user profile than the one installed system-wide. In that case I'd see this:

    $ which curl
    /home/jesse/.nix-profile/bin/curl
    
    $ ls -la /home/jesse | grep .nix-profile
    .nix-profile -> /nix/var/nix/profiles/per-user/jesse/profile
    
    $ ls -l /nix/var/nix/profiles/per-user/jesse
    profile -> profile-133-link
    profile-130-link -> /nix/store/ylysfs90018zc9k0p0dg7x6wvzqcq68j-user-environment
    profile-131-link -> /nix/store/9hjiznbaii7a8aa36i8zah4c0xcd8w6d-user-environment
    profile-132-link -> /nix/store/h4kkw1m5q6zdhr6mlwr26n638vdbbm2c-user-environment
    profile-133-link -> /nix/store/jgxhrhqiagvhd6g42d17h4jhfpgxsk3n-user-environment
    

    Basically symlinks upon symlinks everywhere you look. (And environment variables.)

    So I guess at the end everything is symlinks on NixOS, and everything is hard links plus a set of mount paths on Fedora Atomic.

  • Does Nix's break from FHS cause problems?
  • If you put an FHS on the actual system you wouldn't be able to install multiple versions of the same package, updates wouldn't be atomic - you wouldn't get the big selling points of Nix.

  • Is there a scientific ,logical or theoratical answer to the "what comes first chicken or egg question ? I know it's suppposed to be a paradox but i wanted to know if there is one. if there is share ?
  • To answer your other question, yes there are still single-cell organisms evolving into new species all the time, in the ocean and elsewhere. That includes new multi-cellular species evolving from single cells all the time. But it takes a long time to develop from cell, to clump of slime, to something with legs. So you might not notice the changes if you aren't super patient.

    Or were those separate questions? Are you asking if chickens descended from single-cell organisms? Yes they did. With a lot of steps in between.

  • [Howto] Neovim lua to check if file is in given directory

    Posting just because I looked all over and didn't see an answer. This function expands its arguments to canonical, absolute file paths, and tests whether one is a string prefix of the other. It also works for checking whether a directory is inside of or is identical to another directory.

    lua local is_file_in_directory = function(file_path, directory_path) local file = vim.fn.fnamemodify(file_path, ':p') local dir = vim.fn.fnamemodify(directory_path, ':p') return file ~= nil and dir ~= nil and -- is dir an initial substring of file? file:find(dir, 1, true) == 1 end

    This came up because I'm setting up obsidian.nvim which looks like a handy way to get the best of both worlds between Obsidian and Neovim. I'm setting up some custom configuration to automatically change the selected Obsidian workspace when I cd into vault directory, and to set conceallevel = 1 only on files in a vault, and that requires checking whether the working directory or a file path is inside a given vault directory.

    0
    [Help] Error writing commit message with fugitive

    I've had a problem making commits with fugitive for a long time, over a number of versions of Neovim. Has anyone seen this error before? I've searched a number of times but not found anything.

    I use the cc binding in a fugitive window to open a split to write a commit message. Then I run :x to close the split and finish the commit. Most times - but not every time - I get this error message, the commit is not made, and the fugitive window becomes blank.

    g`" Error detected while processing BufEnter Autocommands for "fugitive://*//"..function 81_ReloadWinStatus[11]..81_Reloa dStatusBuffer[6]..fugitive#BufReadStatus[364]..BufEnter Autocommands for "fugitive://*//"..function 81_ReloadWinStatus[11] ..81_ReloadStatusBuffer[6]..fugitive#BufReadStatus[292]..BufReadPost Autocommands for "*"..function fugitive#Resume[5]..<s>81_RunWait: line 29: E242: Can't split a window while closing another

    I don't know what the deal is with the g`" line in messages. That might be a clue?

    This does not happen when I make a commit without writing a message - for example when I use ce to amend the last commit without editing the commit message.</s>

    0
    Help me find my tiling workflow?

    I'm using a [PaperWM] which is a scrolling window manager extension for Gnome, and I love it! But it's an extensive extension which means it is sometimes brittle. I've thought it would be nice to find a window manager that is natively designed with a workflow that I like. There don't seem to be any actively-maintained scrolling window managers out there. But scrolling is kind of a special type of tiling - I was hoping that someone with tiling experience could give me some tips on how to configure Hyprland, Sway, or something else to customize it for my particular working style.

    [PaperWM]: https://github.com/paperwm/PaperWM#readme

    I've realized that generally what I want is to be able to look at 2 windows at a time. But often I want to keep one of those windows in view, while swapping out the second window. For example,

    • When programming I want to keep my editor in view while switching between a terminal or a browser as my second window.
    • When researching I have a browser window in view, and for my second window I'll switch between my notes app, my todo list, my password manager, a map, etc.

    And there are some features I'd like,

    • When programming I'd like to be able to make my editor full screen sometimes, and be able to quickly switch back to editor-and-terminal side-by-side.
    • When there are more than 2 windows on my workspace I'd like the ones I'm not looking at to go away without having to think about moving them to a specific other workspace.
    • When I open a new window I'd like to automatically see that window next to the previous window I was looking at, ideally moving other windows out of the way instead of making my previous window smaller.

    I know most of this could be done with two monitors. But I have one ultrawide instead. Besides, I'd like to be able to use a 3/4-1/4 or 2/3-1/3 split in some cases.

    So what do you think? Do you have a workflow that you love that you'd like to share?

    5
    Personal Finance @lemmy.ml hallettj @beehaw.org
    Buying a used car, best source for financing?

    My family needs a second car. I'm thinking about a used Chevy Bolt or Nissan Leaf so I think the cost will be about $20,000.

    What's a good source for financing? I was thinking about getting a loan from my bank, Chase. But I see there are also lenders that specialize in car loans, and there might be dealership options? My credit score is over 700.

    6
    nixos @lemmy.ml hallettj @beehaw.org
    Try Home Manager config without switching?

    I've been searching for a way to do this, but I haven't found anything. After I have refactored my Home Manager configuration is there a way I can test the changes in a shell before I switch?

    From what I understand the next-best option is to switch, and then find and run the activate script of the previous generation to switch back.

    0
    Would a good antenna fix my wifi?

    It's a story as old as time. I moved into a new place with great fiber internet - but the modem is in the garage, my desktop PC is not, and the place is a rental so I have limited options for making modifications. The signal is not bad, but I'm getting dropouts.

    Since the PC and router are fixed in place I thought maybe a directional antenna or two would help? 5GHz directional antennae are kinda scarce which makes me wonder if I'm on the wrong track. Does this new "beamforming" thing supersede directional antennae?

    I have 802.11ax (a.k.a. Wi-Fi 6) on both sides of the connection. Maybe I could upgrade to Wi-Fi 6E and give 6GHz a go? Maybe that would be worse due to the intervening wall...

    18
    Orchids after their first airplane ride

    We're moving across the country so my wife made the difficult choices of picking her favorite orchids, and carefully packed them in a duffel bag. She put them in sideways with a big piece of cardboard on top. Then they rode as checked luggage. They came out banged up, but I think in not-too-bad shape. The sphagnum moss did a good job of staying in the pots.

    0
    nixos @lemmy.ml hallettj @beehaw.org
    How to install Wine runners in Lutris in NixOS?

    I'm trying to set up Lutris to play games with Wine. I don't understand how I am supposed to install wine runners? Can anyone help?

    Edit:* It seems the answer is to install runners through the Lutris UI as usual. The Lutris package runs in an FHS which makes everything work even though the runners are not built for NixOS.

    It turns out that what I was missing (I think) was 32-bit DRI support. I enabled that with these lines in my NixOS configuration:

    ```nix

    in /etc/nix/configuration.nix

    hardware.opengl = { driSupport = true; driSupport32Bit = true; }; ```

    Everything below this edit is red herrings.

    /end of edit*

    I tried installing a runner, lutris-GE-Proton8, through Lutris itself as I do in another distro. That crashed with some sort of error - instead of spending time investigating that I thought I'm probably supposed to install things the Nix way so that dependencies are set up correctly.

    I tried installing Wine from nixpkgs like this, and configuring Lutris to use the system Wine:

    home.packages = with pkgs; [ (lutris.override { extraPkgs = lutrisPkgs: [ wine ]; }) ];

    But when I start up a game I get a warning telling me that I need a version of Wine with esync.

    I found a Nix expression for wine-ge in the nix-gaming repo. So I tried building Lutris with that. Here is an excerpt of my Home Manager flake.nix:

    { inputs = { # ... nix-gaming = { url = "github:fufexan/nix-gaming"; inputs.nixpkgs.follows = "nixpkgs"; }; };

    outputs = { nixpkgs, home-manager, nix-gaming, ... }: let system = "x86_64-linux"; pkgs = nixpkgs.legacyPackages.${system}; in { homeConfigurations."jesse" = home-manager.lib.homeManagerConfiguration { # ... modules = [ ./home.nix # ... ]; extraSpecialArgs.inputs = { inherit nix-gaming; }; }; }; }

    And the my attempt at a Lutris config in home.nix:

    home.packages = with pkgs; [ (lutris.override { extraPkgs = lutrisPkgs: [ wine inputs.nix-gaming.packages.${pkgs.system}.wine-ge ]; }) ];

    After a great deal of compiling I believe that I have wine-ge installed... somewhere. (I did try to use the nix-gaming binary cache. I probably messed that up by forcing my version of nixpkgs. I'll probably let nix-gaming use its own nixpkgs version next time.)

    I've read that the lutris package creates an FHS (Filesystem Hierarchy Standard) environment. That is a filesystem somewhere with the directory layout you see in other distros. I expected that wine-ge would be linked into the FHS somewhere. I had the thought that I would configure Lutris with the path to wine-ge. But the file browser that I get in Lutris seems to show me the host file system, not the FHS.

    I thought that maybe I could give Lutris the store path to wine-ge. Then if when I upgrade I'll have to track that down and set the path again. Is there a better way?

    0
    About to get started with NixOS

    I've been thinking about trying NixOS for a while. I think the concepts are elegant, and I have been finding Nix flakes to be very nice for software development. I'm about to get a new machine so I'm ready to take the plunge. Any advice before I dive in?

    I'd like to set up Gnome with some extensions. One of the things I especially want to learn is how to set up graphics drivers, Vulkan, and Lutris.

    For anyone who hasn't heard of it, Nix is a "declarative" package manager. Each package is stored with a hash that encodes its exact source, build script, dependencies, etc. You can have packages installed with mutually-incompatible library dependencies, and Nix makes it just work. For purposes of setting up per-project dependencies Nix does what Docker does, but faster, with more cache hits, and without emulation / containerization. If you want to deploy Docker images, Nix can build images that are more efficient than what you get from dockerfiles.

    You can use Nix as an additional package layer in Linux, MacOS, or Windows with WSL. Think of it as an alternative to Homebrew.

    NixOS is a Linux distro that uses Nix as its primary package manager, and uses Nix principles to manage configuration. Instead of running commands to install things, and then later forgetting what you installed or why, packages are listed in config files. The system installs and links packages as necessary. Anything you remove from your config is unlinked. When you want to reclaim space you can garbage-collect unused packages.

    1
    hallettj hallettj @beehaw.org

    Programmer in California

    I'm also on https://leminal.space/u/hallettj

    Posts 12
    Comments 217