gotcha is a small fetcher written in go. It has absolutely no customization (at least for now) and is primarily intended for my system.

• speedy boi (on my machine <2ms)
• no dependencies besides linux and the binary itself (and go for building duh)
• can update itself with gotcha update
• displays:
  • distribution
  • kernel version
  • uptime (in days too 😈)
  • shell
  • desktop environment/window manager
  • memory usage
  • ip (of an automagically¹ selected interface)

With my AMD Ryzen 9 6900HX CPU I get the following results from some fetches I know (and mine ofc):

_{created with hyperfine}

Add this thingy to your inputs:

inputs = {
  # ...
  gotcha = {
    url = "github:MrSom3body/gotcha";
    # only add the inputs part if you don't want to use the cache
    inputs = {
      nixpkgs.follows = "nixpkgs";
    };
  };
  # ...
};

Andddd add this the package to home-manager or your system wide nix config:

inputs.gotcha.packages.${pkgs.system}.default

If you want to use the cache you can do so by adding the following lines to your nix config:

{
  nix.settings = {
    substituters = [
      "https://gotcha.cachix.org"
    ];
    trusted-public-keys = [
      "gotcha.cachix.org-1:HvkCMDHVThJj/aaxBgDvjraKYSNM1yFKveTsPYG3YUA="
    ];
  };
}

Get the latest release or just compile it yourself. Compiling it is extremely easy if you have just installed (or else copy the command with go build in it from the justfile):

just build

After installing it you can update it by simply using gotcha update.

There is no real configuration, but you can override some values to change some things. The process of this is imo easier for nix but if you compile it yourself because you use a inferior different distro you need to do so with some flags.

If you want to change the interface name for the IP you can override the package like this:

(inputs.gotcha.packages.${pkgs.system}.default.override {
  <key> = "<value>";
})

For every override you want to add you must add this -X 'github.com/MrSom3body/gotcha/cmd.<key>=<value>' to the -ldflags like so:

go build -ldflags="-s -w -X 'github.com/MrSom3body/gotcha/cmd.<key>=<value>'"

go + fetch → gofetch → gotch → gotcha

I know gotcha makes absolutely no sense for a fetcher but idc :)

• NotAShelf/microfetch for inspiring me to write my own fetch
• Macchina-CLI/macchina for providing an idea on how I'd like it to look