Centerpiece

A blazing fast, extendable launcher for wayland.

centerpiece is designed with these values in mind:

• ⚡ blazing fast performance
• ⚫ minimalistic UI
• 🔌 extendable through plugins

Demo

Run it!

Centerpiece is not packed in any major package manager yet. However you can easily run it through nix.

Try it using nix run

nix run github:friedow/centerpiece

Use it with home-manager

1. Add this repository to your flake.nix inputs

   {
       inputs.centerpiece.url = "github:friedow/centerpiece";
   }

2. Register the home-manager module and enable centerpiece

   { inputs, ... }: {
       home-manager.users.<USER> = {
           imports = [ inputs.centerpiece.hmModules."x86_64-linux".default ];
   
           programs.centerpiece.enable = true;
       };
   }

3. See the 'Configure' section for more nix config options.

Plugins

All plugins are enabled by default. Disable the ones you don't need ;).

Sway Window Switcher

Search for open sway windows and switch between them.

Related config keys

# ~/.config/centerpiece/config.yml
plugin:
  sway_windows:
    enable: true

Application Launcher

Search for installed applications and launch them.

This plugin searches for .desktop files. It follows the XDG Base Directory Specification. Thus, it searches in directories specified in the XDG_DATA_DIRS and XDG_DATA_HOME environment variables.

Related config keys

# ~/.config/centerpiece/config.yml
plugin:
  applications:
    enable: true

Browser Integration

Open bookmarks and browser history in new tabs.

This plugin currently only integrates with Brave.

In addition to bookmarks and history there is also a plugin to open special bookmarks in app mode. This will launch a brave instance without address and tab bar. To use this plugin put bookmarks into a Bookmark folder called 'Progressive Web Apps' at the top of your bookmarks collection.

Related config keys

# ~/.config/centerpiece/config.yml
plugin:
  brave_bookmarks:
    enable: true
  brave_history:
    enable: true
  brave_progressive_web_apps:
    enable: true

Git Repositories

List git repositories in your home directory and open a terminal and an editor in them.

Selecting a git repository will execute the configured commands. Defaults to opening a terminal and a code editor in the selected directory.

Searching for git repositories in the whole home directory is resource heavy. To avoid delays in the plugin launch time this plugin comes with a systemd service which will create an index file. This index file is located at ~/.cache/centerpiece/git-repositories-index.json and necessary for the plugin to work.

It exports the following environment variables:

• $GIT_DIRECTORY: The path to the git directory.
• $GIT_DIRECTORY_NAME: The name of the git directory.

If zoxide integration is enabled, the plugin will sort your projects based on their respective zoxide scores.

Related config keys

# ~/.config/centerpiece/config.yml
plugin:
  git_repositories:
    enable: true
    zoxide: true
    commands:
      - ["alacritty", "--command", "nvim", "$GIT_DIRECTORY"]
      - ["alacritty", "--working-directory", "$GIT_DIRECTORY" "--class" "$GIT_DIRECTORY_NAME"]

System Commands

Lock, sleep, restart or shutdown your system.

The following commands are executed when the respective actions are selected.

lock: lock
sleep: systemctl suspend
restart: reboot
shutdown: poweroff

Related config keys

# ~/.config/centerpiece/config.yml
plugin:
  system:
    enable: true

WiFi

List nearby wifi networks and connect to them.

Related config keys

# ~/.config/centerpiece/config.yml
plugin:
  wifi:
    enable: true

Resource Monitor

Display current cpu, ram, disk usage and battery state.

Related config keys

# ~/.config/centerpiece/config.yml
plugin
  resource_monitor_battery:
    enable: true
  resource_monitor_cpu:
    enable: true
  resource_monitor_disks:
    enable: true
  resource_monitor_memory:
    enable: true

Clock

Display current date and time.

Related config keys

# ~/.config/centerpiece/config.yml
plugin:
  clock:
    enable: true

Configure

You can configure centerpiece through yaml or nix.

You can specify alternative configuration locations through:

• the --config flag
• the CENTERPIECE_CONFIGURATION_FILE environment variable

Using yml

1. Create a config.yml file in ~/.config/centerpiece/config.yml.

2. Use the following config keys to configure centerpiece. These are all config keys including their respective defaults.

   plugin:
     applications:
       enable: true
     brave_bookmarks:
       enable: true
     brave_history:
       enable: true
     brave_progressive_web_apps:
       enable: true
     clock:
       enable: true
     git_repositories:
       enable: true
       commands:
         - ["alacritty", "--command", "nvim", "$GIT_DIRECTORY"]
         - ["alacritty", "--working-directory", "$GIT_DIRECTORY"]
     resource_monitor_battery:
       enable: true
     resource_monitor_cpu:
       enable: true
     resource_monitor_disks:
       enable: true
     resource_monitor_memory:
       enable: true
     system:
       enable: true
     wifi:
       enable: true
     sway_windows:
       enable: true

Using nix

1. Install the home-manager module as documented in the 'Run it!' section.

2. Use the following config keys to configure centerpiece. These are all config keys including their respective defaults.

   { inputs, ... }: {
       home-manager.users.<USER> = {
           imports = [ inputs.centerpiece.hmModules."x86_64-linux".default ];
   
           programs.centerpiece = {
               enable = true;
               config = {
                   plugin = {
                       applications = {
                           enable = true;
                       };
                       brave_bookmarks = {
                           enable = true;
                       };
                       brave_history = {
                           enable = true;
                       };
                       brave_progressive_web_apps = {
                           enable = true;
                       };
                       clock = {
                           enable = true;
                       };
                       git_repositories = {
                           enable = true;
                           commands = [
                               ["alacritty" "--command" "nvim" "$GIT_DIRECTORY"]
                               ["alacritty" "--working-directory" "$GIT_DIRECTORY"]
                           ];
                       };
                       resource_monitor_battery = {
                           enable = true;
                       };
                       resource_monitor_cpu = {
                           enable = true;
                       };
                       resource_monitor_disks = {
                           enable = true;
                       };
                       resource_monitor_memory = {
                           enable = true;
                       };
                       system = {
                           enable = true;
                       };
                       wifi = {
                           enable = true;
                       };
                       sway_windows = {
                           enable = true;
                       };
                   };
               };
   
               # enables a systemd service to index git-repositories
               services.index-git-repositories = {
                    enable = true;
                    interval = "5min";
                };
           };
       };
   }

Contribute

Repository Structure

/client

Contains the graphical application and the plugin code that is needed during runtime. This is most of the plugin code which handles requests for searching and opening of entries.

/services

Computations for generating plugin entries can be time consuming. For example listing all git repositories entails searching your whole home directory for directories with the name .git. To avoid slowing down the graphical application during run time this directory contains code for small systemd services that write indices for plugins with time consuming queries.

Development Setup

Build Environment

The flake.nix provides a ready-to-roll build environment usable with nix develop.

Building the Application

1. Run a new bash shell containing the build environment

   nix develop

2. Run the application

   cargo run