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What is gulag-web?

gulag-web is the front-facing appearance of the osu! server protocol, gulag! Using native async/await syntax written on top of Quart and cmyui's multipurpose library, gulag-web achieves flexability, cleanliness, and efficiency not seen in other frontend implementations - all while maintaining the simplicity of Python.

A primary goal of gulag-web is to keep our codebase a developer-friendly API, so that programming remains about the logic and ideas, rather than the code itself.

Varkaria and I are mainly writing this. Varkaria handles the design aspect of the frontend, making it responsive and snappy for mobile users, while I handle the backend, making sure it's easy to modify in every aspect as well as well as make it as efficent as possible.

gulag-web has come a long way, going from this, to what you see now. It's in quite the usuable state. We now have a fully implemented session authentication system allowing users to have a more interpersonal experience, leaderboards supported all mods and modes available within the gulag stack, a automated documentation system featuring markdown support, user profiles featuring every single statistic a player would need from score UR to rank graphs*, and a admin panel allowing for easy management of the gulag instance and it's users*. If you are curious on how far we have gotten, check out our projects, you can see what we have done and what we are about to complete.

* a feature that is in development or coming soon.


  • Some know-how with Linux (tested on Ubuntu 18.04), Python, and general-programming knowledge.
  • MySQL


Setup is relatively simple - these commands should set you right up.


  • Ubuntu 20.04 is known to have issues with NGINX and osu! for unknown reasons?
  • If you have any difficulties setting up gulag-web, feel free to join the Discord server at the top of the README, we now have a bit of a community!
# Install Python >=3.9 and latest version of PIP.
sudo add-apt-repository ppa:deadsnakes/ppa
sudo apt install python3.9 python3.9-dev python3.9-distutils
python3.9 && rm

# Install MySQL and NGINX.
sudo apt install mysql-server nginx

# Clone gulag-web from GitHub.
git clone
cd gulag-web

# Initialize and update the submodules.
git submodule init && git submodule update

# Install requirements from pip.
python3.9 -m pip install -r ext/requirements.txt

# Add and configure gulag-web's NGINX config to your nginx/sites-enabled.
sudo ln -r -s ext/nginx.conf /etc/nginx/sites-enabled/gulag-web.conf
sudo nano ext/nginx.conf
sudo nginx -s reload

# Configure gulag-web.
cp ext/

# Run gulag-web.
python3.9 # Run directly to access debug features for development! (Port 5000)
hypercorn # Please run gulag-web with hypercorn when in production! It will improve performance drastically by disabling all of the debug features a developer would need! (Port 8000)

Directory Structure

├── blueprints   # Modular routes such as the API, Frontend, or Admin Panel.
├── docs         # Markdown files used in gulag-web's documentation system.
├── ext          # External files from gulag-web's primary operation.
├── objects      # Code for representing privileges, global objects, and more.
├── static       # Code or content that is not modified or processed by gulag-web itself.
├── templates    # HTML that contains content that is rendered after the page has loaded.
    ├── admin    # Templated content for the admin panel (/admin).
    ├── settings # Templated content for settings (/settings).
    └ ...         # Templated content for all of gulag-web (/).

The End

Well know that you know everything, why not check out the original code gulag-web was based off of in this dusty old archived repository?


The frontend appearance for the osu! server protocol, gulag!