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https://gitlab.com/EternalWanderer/voidcruiser.nl
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Config snippets post
and some general cleanup
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@ -27,10 +27,6 @@ contentTypeName = 'rambles'
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identifier = "rambles"
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name = "rambles"
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url = "/rambles/"
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[[menu.services]]
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identifier = "alpine repo"
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name = "alpine repo"
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url = "https://alpine.voidcruiser.nl"
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[[menu.services]]
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identifier = "searXNG instance"
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name = "searXNG instance"
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@ -10,7 +10,6 @@ description: "The obligatory about page"
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# The site itself
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- Colorscheme: [Gruvbox](https://github.com/morhetz/gruvbox)
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Depending on `prefers-color-scheme:` in your browser settings being `light` or not, you get to see the light variant or not.
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- This site is viewable and usable on every browser I've thrown at it so far.\
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@ -28,29 +27,18 @@ Here's the browser list:
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- Netsurf
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- Nyxt
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# Various devices in posession of [$HUMANOID](#HUMANOID)
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| hostname | os | device/model/main board | role |
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|---|---|---|---|
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| hazyMonolith | Debian 11 | HP Z210 Workstation | Used to be an entertainment box but got superceded by voidBerry. These days, mainly standing under my desk being a thing to put my feed up on.|
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| voidSlab | Alpine Edge | ThinkPad T440p |Daily driver for lighter and less serious things.|
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| RejuvinatedBrick | Alpine Edge |Dell Latitude E5500 |Being a beautiful brick to nagivate Gopher and Gemini.|
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| voidCreeper | NixOS 22.05 | HP Omen 15 |Central heating if my actual central heating fails and running the few games I still play these days.|
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| HappyThonk | NixOS 21.11 | ThinkCentre Edge something-something |Experimental box if I need something slightly stronger then a Raspberry Pi.|
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| PicturePlanck | Debian 11 | Raspberry Pi 4B |Home server.|
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| voidBerry | Debian 11 | Raspberry Pi 4B |Light entertainment box.|
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# Software used by [$HUMANOID](#HUMANOID)
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| category | programs |
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|---|---|
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| Window manager: | DWM, XMonad
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| Graphical browser: | FireFox, LibreWolf, UnGoogled Chromium, Brave, Qutebrowser
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| Operating system: | NixOS, Debian, Alpine |
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| Window manager: | XMonad
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| Graphical browser: | LibreWolf, UnGoogled Chromium, Qutebrowser
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| Text browser: | Lynx, w3m
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| Gemini client: | Lagrange, Amfora
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| Terminal: | ST, Kitty
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| Text editors: | Vim, NeoVim VSCodium with NVim plugin
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| Image viewer: | sxiv, nsxiv
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| Video player: | MPV
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| Music player: | MPD + NCMPCPP
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| Terminal: | Kitty
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| Text editors: | Vim, NeoVim, VSCodium with NVim plugin
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| Image viewer: | nsxiv
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| Video player: | mpv
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| Music player: | mpd + ncmpcpp
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224
src/content/rambles/config-snippets.md
Normal file
224
src/content/rambles/config-snippets.md
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@ -0,0 +1,224 @@
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---
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title: "Config Snippets"
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date: "2024-04-09T18:38:46+02:00"
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author: "$HUMANOID"
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tags: ["xmonad", "haskell", "nix"]
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description: "I have quite a few things in my config are worth highlighting."
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toc: true
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---
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# Mess
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First I'm going to address an elephant in the room:
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> Why aren't you publishing your dotfiles?
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They're too much of a mess with a bunch personal data entwined in the commit
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history that I don't feel comfortable publicly throwing onto the internet.
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# Nix snippets
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It's no secret that I've picked up NixOS a few years ago. To that end, there are
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a few things that I don't think I've seen other people do that I would like to
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share here.
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## `home-manager` color scheme
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Some time ago, I came across the
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[nix-colors](https://github.com/Misterio77/nix-colors) project and came to the
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conclusion that it didn't fit my needs. As a result, I put/hacked a function
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together that extracts the color schemes from
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[`pkgs.kitty-themes`](https://search.nixos.org/packages?show=kitty-themes&query=kitty-themes).
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I won't go into the integration details in my personal config as it's not
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exactly something I would call ergonomic. However, this is the function I came
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up with:
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{{< start-details summary="Expand to see a rather lengthy nix expression" >}}
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```nix
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{ lib, config, pkgs, ... }:
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arg:
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with lib;
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let cfg = config.colorscheme;
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getKittyTheme = with builtins; (theme:
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let matching = filter (x: x.name == theme)
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(fromJSON
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(readFile
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"${pkgs.kitty-themes}/share/kitty-themes/themes.json"));
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in throwIf (length matching == 0)
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"kitty-themes does not contain a theme named ${theme}"
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"${pkgs.kitty-themes}/share/kitty-themes/${(head matching).file}");
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unwrapKittyTheme = with pkgs; path: let
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theme = runCommand "theme.toml" { nativebuildinputs = [ coreutils ]; } ''
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cat '${path}' | sed -E '/^#|^$/d;s/\s+(.*)/ = "\1"/g' > $out
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'';
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in (builtins.fromTOML (builtins.readFile theme));
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defaultTheme = {
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selection_foreground = "";
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selection_background = "";
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foreground = "";
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background = "";
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color0 = "";
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color1 = "";
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color2 = "";
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color3 = "";
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color4 = "";
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color5 = "";
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color6 = "";
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color7 = "";
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color8 = "";
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color9 = "";
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color10 = "";
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color11 = "";
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color12 = "";
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color13 = "";
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color14 = "";
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color15 = "";
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cursor = "";
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cursor_text_color = "";
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url_color = "";
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};
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in defaultTheme // unwrapKittyTheme (getKittyTheme arg)
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```
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{{< end-details >}}
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This function takes a name and matches that against the contents of
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`pkgs.kitty-themes`. If it fails to find something, it throws an error; If does
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find something, it returns that file, converts that to something approach TOML
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syntax, which is then parsed using `builtins.fromTOML` and merged with a
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minimum-viable-colorscheme, ensuring all colors are at the least declared as an
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empty string; I ran into issues here when using this output in combination with
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Qutebrowser when referring to colors that didn't exist in certain colorschemes.
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## Qutebrowser
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I manage my Qutebrowser config using the `home-manager` module (obviously). In
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my Qutebrowser config, I have JavaScript disabled by default and use a list of
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exception for trusted sites. When I first tried to set this up, I bumped into
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the obvious problem that Nix doesn't allow you to bind multiple values to a
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single name. Luckily, the Qutebrowser module has an `extraConfig` option which
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takes a string. At first I had a bunch of lines for those exceptions:
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```
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config.set('content.javascript.enabled', True, 'https://hoogle.haskell.org/*')
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config.set('content.javascript.enabled', True, 'https://search.nixos.org/*')
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config.set('content.javascript.enabled', True, 'https://nix.dev/*')
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config.set('content.javascript.enabled', True, 'https://voidcruiser.nl/searx/*')
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```
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However, I quickly got sick of the inherent inefficiency and illegibility of
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this approach, so I wrote a few little functions:
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```nix
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...
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programs.qutebrowser.extraConfig = let
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enableJS = url: "config.set('content.javascript.enabled', True, '${url}')";
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javaScriptExceptions = [
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"https://hoogle.haskell.org/*"
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"https://search.nixos.org/*"
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"https://nix.dev/*"
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"https://voidcruiser.nl/searx/*"
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];
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in ''
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${with builtins; concatStringSep "\n" (map enableJS javaScriptExceptions)}
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# things I haven't managed to abstract properly yet
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'';
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...
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```
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This takes the contents supplied in `javaScriptExceptions` and generates a
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viable config line based on each item by mapping over it with the `enableJS`
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function. Since the Qutebrowser config syntax can't read the nix list syntax,
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the items of the resulting list and than concatenated using `\n` or a newline
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character.
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# XMonad
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My XMonad configuration has a bunch of weird shit in it, some of which I'm proud
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of, some of which still has bugs that I keep telling myself I will get to At
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Some Point™. Here are some of the nicer bits.
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## Volume control using scroll wheel
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I have bound `Super + scroll {up,down}` bound to {increase,decrease} volume
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respectively.
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```haskell
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...
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, ((modMask, button4), \_ -> safeSpawn "pulsemixer" ["--change-volume","+1"])
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, ((modMask, button5), \_ -> safeSpawn "pulsemixer" ["--change-volume","-1"])
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, ((modMask .|. shiftMask, button4), \_ -> safeSpawn "pulsemixer" ["--change-volume","+5"])
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, ((modMask .|. shiftMask, button5), \_ -> safeSpawn "pulsemixer" ["--change-volume","-5"])
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...
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```
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The hard part here was coming to the realisation that using a lambda that
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discards its argument was the best way to handle interactions while satisfying
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the type signature.
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Other than that, these functions are quite straightforward. `button4` is 'scroll
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up' while `button5` is 'scroll down'. I don't recall where I found this, but it
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was somewhere in the documentation. As a result, when XMonad registers a
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combination of `modMask` and either of the scroll directions, it uses
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`pulsemixer` to increase or decrease the volume.
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## Kitty wrappers
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I use the [Kitty terminal](https://sw.kovidgoyal.net/kitty/). Kitty has a huge
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feature list, of which I feel like I use about 20% at most. One of these
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features is the ability to override config options using the `-o` parameter.
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This allows you to set a different font(size) or colorscheme or what have you.
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I wanted to be able to start a `BQN` repl with the BQN386 font right from my
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window manager. So I wrote a few functions that take various arguments and
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supply them to Kitty without excessive syntax.
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The simplest one of these is `kittyWithOverrides`. It can only take a list of
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`-o` parameters.
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```haskell
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kittyWithOverrides :: [String] -> X ()
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kittyWithOverrides = spawn . ("kitty " ++) . (unwords . map ("-o " ++))
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```
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Here is how I use this function to create a `BQN` repl window function:
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```haskell
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largeTextBQN shell = [ "font_size=17"
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, "font_family='BQN386 Unicode'"
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, "shell='" ++ shell ++ "'"
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]
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bqn = kittyWithOverrides $ largeTextBQN "bqn"
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```
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_Note:_ I use a `largeTextBQN` function rather than a `where` binding, because I
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use the same settings for a few other repls as well.
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This string will evaluate to the following at compile time:
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```
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kitty -o font_size=17 -o font_family='BQN386 Unicode' -o shell='/nix/store/6xwwmv4ljbfckkyklh512zxy6l9s0wv4-cbqn-standalone-0.4.0/bin/bqn'
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```
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…which will then be fed to `spawn`, thereby executing it. If I were to spend
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more time on it, I could figure out a way to do this properly using `safeSpawn`
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or one of its variants, but as it stands, I'm too lazy to do so.
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For a more general interface I wrote a `kittyWithParams` function:
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```haskell
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kittyWithParams :: [(String,String)] -> X ()
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kittyWithParams = spawn . ("kitty " ++) . unwords . map unwrapParams
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where unwrapParams (flag,parameter) = case last flag of
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'=' -> flag ++ parameter
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_ -> flag ++ " " ++ parameter
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```
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Comparatively, it is rather messy. Still, the basic functionality is there and
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I'm quite happy with how it works.
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@ -16,11 +16,3 @@ I have got to say that the theming of SearXNG has improved quite a lot either ov
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At the very least I think the default theme looks quite nice these days.
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{{< noscript content="SearXNG does make use of JavaScript for certain functions, but it's purely to make using it a smoother experiece and it's perfectly functional without JavaScript." >}}
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# [Alpine repository](https://alpine.voidcruiser.nl)[(onion)](http://imerwns46jfdawado7xxb42i2kx7wjy6eyzugxehehxluh4hjqpebmyd.onion)
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I use [suckless' dwm](https://dwm.suckless.org) on every other machine I use.
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Since I can't be bothered to always keep cloning the repo, I thought I'd make package based on it.
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Why Alpine of all things? It's my second most used distro after Debian.
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Since it's as lightweight as it is, I'd say it's a natural fit for suckless utilities.
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(also perhaps because the process of making package was really quite easy).
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