Walker - Application launcher

Walker is a highly extendable application launcher that doesn't hold back on features and usability. Fast. Unclutters your brain. Improves your workflow.

Features

• plugin support: simple stdin/stdout (external or via configuration, see wiki)
• icons/images
• start as service for faster startup
• run entries via labels (F<1-8> or jkl;asdf)
• non-blocking async handling of results
• typeahead
• start with explicit modules, style or config
• arrow-up history
• drag&drop support
• dmenu-mode
• run as password input
• theming support (global, per module, with inheritance)

Builtin Modules

• ai
  • currently only Claude 3.5
  • define different prompts
• runner
  • parses your shell config for aliases
  • exclusive list or all binaries
  • ignore-list
  • generic runner
  • semi-smart: shu now => shutdown now
• windows
  • simple window switcher
• desktop applications
  • history-aware
  • desktop actions (f.e. Open a new private window [Firefox])
  • puts newly installed applications on top
  • context-aware (context = open windows)
• websearch
  • simple websearch
  • google, duckduckgo, ecosia, yandex
  • can open websites directly
• clipboard
  • simple clipboard history
  • with images
• module switcher
  • lets you switch to specific modules
• commands (for Walker, f.e. clear cache)
• ssh
  • parses your known_hosts and config files
• finder
  • simple fuzzy finder
  • drag&drop support
• emojis
• symbols
• bookmarks
  • currently custom bookmarks only
  • planned: bookmarks from browsers
• calculator
  • uses libqalculate
• custom commands (for running simple commands)
  • lets you define and run simple one-off commands
  • f.e. toggle window floating
  • no need to create keybinds for commands you don't run often

Requirements

• gtk4-layer-shell

Installation

arch:
yay -S walker-bin

// or to build from source
yay -S walker

Building from source

Building can take quite a while, be patient

Make sure you have the following dependencies installed:

• go
• gtk4
• gtk4-layer-shell
• gobject-introspection

git clone https://github.com/abenz1267/walker /tmp/walker
cd /tmp/walker/cmd
go build -x -o walker // the '-x' is for debug output
sudo cp walker /usr/bin/

Without these you won't be able to build.

Install using Nix

You have two options of installing walker using Nix.

1. Using the package exposed by this flake

   1. Add to your flake inputs.walker.url = "github:abenz1267/walker";
   2. Add inputs.walker.packages.<system>.default to environment.systemPackages or home.packages

2. Using the home-manager module exposed by this flake:

   1. Add to your flake inputs.walker.url = "github:abenz1267/walker";
   2. Add imports = [inputs.walker.homeManagerModules.default]; into your home-manager config
   3. Configure walker using:

programs.walker = {
  enable = true;
  runAsService = true;

  # All options from the config.json can be used here.
  config = {
    search.placeholder = "Example";
    ui.fullscreen = true;
    list = {
      height = 200;
    };
    websearch.prefix = "?";
    switcher.prefix = "/";
  };

  # If this is not set the default styling is used.
  style = ''
    * {
      color: #dcd7ba;
    }
  '';
};

Additionally, there is a binary caches at https://walker.cachix.org and https://walker-git.cachix.org which you can use with the following:

nix.settings = {
  substituters = ["https://walker.cachix.org"];
  trusted-public-keys = ["walker.cachix.org-1:fG8q+uAaMqhsMxWjwvk0IMb4mFPFLqHjuvfwQxE4oJM="];
};

nix.settings = {
  substituters = ["https://walker-git.cachix.org"];
  trusted-public-keys = ["walker-git.cachix.org-1:vmC0ocfPWh0S/vRAQGtChuiZBTAe4wiKDeyyXM0/7pM="];
};

Running as a service

This depends on your system. You simply need to autostart Walker with walker --gapplication-service and it will run in the background. Then just run walker to bring it up.

Example for Hyprland:

exec-once=walker --gapplication-service

Config & Style

Check the wiki

Start Walker with explicit modules

You can start walker with explicit modules by using the --modules flag. F.e:

walker --modules applications,ssh

Will tell Walker to only use the applications and ssh module.

Styling with typeahead enabled

If you have typeahead enabled, make sure that your #search has no background, so the typeahead is readable.

Providing your own modules

If you want to extend walker with your own modules, you can do that in the config.

{
  "plugins": [
    {
      "prefix": "!",
      "name": "mymodule",
      "src": "node /path/to/myscript.js"
    }
  ]
}

See the wiki for more information.

Dynamic Styling

The window and items will have a class based on the source. Selecting an item will change the windows class to the current selections source. Using a prefix will apply that sources classes to the window.

F.e. search = !somecommand => #window.runner

class	condition
#window.activation	AM enabled
#spinner.visible	Processing in progress
#item.<entryclass>	Always
#item.active	Dmenu with '--active'-flag

Starting as service

Start with walker --gapplication-service to start in service-mode. Calling walker normally afterwards should be rather fast.

Additional flags

Flag	Description
--modules, -m	Run with explicit modules
--new, -n	Start new instance ignoring service
--config, -c	Config file to use
--theme, -s	Theme to use
--dmenu, -d	Start in dmenu mode
--keepsort, -k	Don't sort alphabetically
--placeholder, -p	Placeholder text
--labelcolumn, -l	Column to use for the label
--password, -y	Launch in password mode
--forceprint, -f	Forces printing input if no item is selected
--query, -q	To set initial query

Keybinds

AM = Activation Mode

Key	Description
Enter	activate selection
Alt+Enter	activate selection with alternative command. By default: run in terminal
Shift+Enter	activate selection without closing
Ctrl+j (if ActivationMode is disabled), Down, Tab	next entry
Ctrl+k (if ActivationMode is disabled), Up, LEFT_TAB (shift+tab?)	previous entry
Escape	close
Ctrl + Label	Activate item by label
Ctrl + c	AI: copy last response
Ctrl + r	All (service-only): resume last query,AI: resume last session for prompt
Ctrl + x	AI: clear current session
Ctrl + e	AI: run last message in terminal
Ctrl + m	toggle exact match search
Ctrl + Shift + Label	Activate item by label without closing
Shift+Backspace	All: delete entry from history, Clipboard: remove from clipboard

Activation Mode

Activation-Mode can be triggered by holding LCtrl ( or LAlt). The window will get an additional class activation you can use for styling. While activated, you can run items by pressing their respective label. This only works for the top 8 items.

FAQ

Newly installed or removed applications aren't shown / are still shown

Make sure to clean the applications cache by either running the "Clear Applications Cache" command from within Walker (using the commands module) or by deleting the applications.json file in $HOME/.cache/walker/.

Additionally you can disable the cache completely by setting

  "applications": {
    "cache": false
  },

in your config.