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linux-desktop-gremlin

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KurtVelasco's Desktop Gremlin, now on Linux!

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- 01-configure-compositor.md
- 02-install.md
- 03-download-gremlin-assets.md
- 04-run.md
- 05-customize.md
- 06-create-your-gremlins.md
- migrate-to-v1.0.0.md
- gremlin-downloader-cli.sh
- gremlin-downloader.sh
- gremlin-picker.sh
- make-desktop-files.sh
- - __init__.py
  - frame_engine.py
  - sound_engine.py
  - sprite_engine.py
- - animation_ticker.py
  - event_listener.py
  - events.py
  - state_manager.py
  - timer_manager.py
  - walk_manager.py
- - gremlin_window.py
  - hotspot_geometry.py
  - hotspot_manager.py
  - hover_manager.py
  - input_filter.py
  - input_listeners.py
  - keyboard_manager.py
  - mouse_manager.py
  - systray_icon.py
- __init__.py
- asset_downloader.py
- asset_downloader_gui.py
- configs_loader.py
- launcher.py
- picker.py
- resources.py
- settings.py
- states.py
.gitignore
.python-version
config.json
default.nix
flake.lock
flake.nix
guix.scm
icon.png
install.sh
LICENSE
pyproject.toml
README.md
run.sh
uninstall.sh
update.sh
upstream-assets.json
uv.lock

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# Linux Desktop Gremlins!

Basically [KurtVelasco's Desktop Gremlin](https://github.com/KurtVelasco/Desktop_Gremlin), but re-written in PySide + Qt6.

https://github.com/user-attachments/assets/eeb75510-9725-4f3a-a259-0959ddc22603

💥 Features 💥

- Works on both X11 (with picom) and Hyprland (with XWayland).
- Also works on Windows and MacOS (follow the manual installation guide).
- Interactive controls:
    - **Drag & Drop:** 🖱️ Click and drag your gremlins to move 'em.
    - **Walk**: ⌨️ Hover your mouse over the gremlins, then use W/A/S/D to make 'em skedaddle 💨💨.
    - **Secret Moves:** Right-click on different spots to play special animations 😎! It might be a headpat, a poke, or something even more special!
- Also, if you leave the gremlins lonely for so long, they will occasionally make more ✨noises✨ to annoy you 😈😈. Think of it as *"1 hour of silence occasionally broken up by Mambo"*.

> Note: The *"1 hour of silence occasionally broken up by Mambo"* feature can be turned off (if you are a chicken 🐔🐔). See [Customizations](./docs/05-customize.md).

# Install and customize! 🚀

## 1. Quick Guide

1. Run install script:

```sh
curl -s https://raw.githubusercontent.com/iluvgirlswithglasses/linux-desktop-gremlin/refs/heads/main/install.sh | bash
```

2. Call the gremlins from your app launcher!

<img width="1003" height="500" alt="ss-app_launcher" src="https://github.com/user-attachments/assets/fee960dc-c983-424d-8649-23c4b40d1293" />

## 2. Extended Guide

Wanna tweak details, or install on a setup where the install script can't automate everything? Follow these steps to get your gremlins up and running exactly the way you want:

+ [1. Configure your compositor](./docs/01-configure-compositor.md)
+ [2. Install this repository](./docs/02-install.md)
+ [3. Choose your gremlins!](./docs/03-download-gremlin-assets.md)
+ [4. Run desktop gremlins!](./docs/04-run.md)
+ [5. Customizations](./docs/05-customize.md)
+ [6. Create your gremlins!](./docs/06-create-your-gremlins.md)

# Changelog

- **2026-02-08 Breaking Change: Assets have been moved to release tags!** If you have cloned this repo earlier than that, please see [Migration Guide](./docs/migrate-to-v1.0.0.md) to avoid re-downloading the assets after `git pull`. Also, take a look at the [New Downloader](./docs/03-download-gremlin-assets.md)! It helps downloading new gremlin assets with ease!

<details>
    <summary>See 2025 changelog</summary>

- 2026-01-15: Refactored the entire codebase for modularity and strict type-check. Some behaviors have changed, some are intentional, some are bugs.
- 2026-01-14: Added Qt6 character selector GUI! Huge thanks to [@Multex](https://github.com/Multex)!
- 2025-11-18: Massive source code restructure! We now have a unified run script and a package recipe for Guix. (Huge thanks to [@thanosapollo](https://github.com/thanosapollo)! This chad is a much better programmer than I am.)
- 2025-11-16: Added a manual trigger for the annoy emote. Press `P` to make them noisy on command.
- 2025-11-15: Remapped headpats from Left Click to Right Click. No more accidental pats when you want to drag them around!
</details>

# Some differences between this and KurtVelasco's Desktop Gremlins

This is not a strict 1:1 port, because I made some changes to the animation flow to better match my own preferences. I also created a few additional spritesheets; please feel free to use them if they're helpful.

# The Gremlin Hall of Fame ❤️

Starting 2026-02-08, assets have been move to release tags, which means contributors who submit assets via PRs would no longer appear in the GitHub contributors list 😢.

Therefore, if you'd like to contribute a new gremlin, please make two Pull Requests:
1. **The Asset PR:** Submit your new asset to the `./gremlins` directory. This PR won't be merged, but it'll send me the asset.
2. **The Credit PR:** Add yourself to the glorious table below so the world knows of your deeds!

| Gremlin Asset         | Contributor                                                   |
| :-------------------- | :------------------------------------------------------------ |
| Agnes Tachyon         | [@TRKako](https://github.com/TRKako)                          |
| Manhattan Cafe        | [@TRKako](https://github.com/TRKako)                          |
| Calstone Light        | [@virtualspan](https://github.com/virtualspan)                |
| Dream Journey         | [@virtualspan](https://github.com/virtualspan)                |
| Durandal              | [@virtualspan](https://github.com/virtualspan)                |
| Gold Ship             | [@TRKako](https://github.com/TRKako)                          |
| Haru Urara            | [@TRKako](https://github.com/TRKako)                          |
| Meisho Doto           | [@TRKako](https://github.com/TRKako)                          |
| Oguri Cap             | [@TRKako](https://github.com/TRKako)                          |
| T.M. Opera O          | [@TRKako](https://github.com/TRKako)                          |
| Stay Gold             | [@virtualspan](https://github.com/virtualspan)                |
| Tamamo Cross          | [@virtualspan](https://github.com/virtualspan)                |
| Tachibana Hikari      | [@Xgameisdabest](https://github.com/Xgameisdabest)            |
| Kurosaki Koyuki       | [@Xgameisdabest](https://github.com/Xgameisdabest)            |
| Exusiai               | [@virtualspan](https://github.com/virtualspan)                |
| Exusiai (with gun)    | [@virtualspan](https://github.com/virtualspan)                |
| Speaki                | [@Quicksilver151](https://github.com/Quicksilver151)          |

A massive, heartfelt thank you to our incredible asset contributors!

# Try other forks!

There are some forks of this repository that you may want to checkout!

- [#23](https://github.com/iluvgirlswithglasses/linux-desktop-gremlin/pull/23): Significantly reduces memory usage of the app, though some functionalities will be different.