Open Source · Python 3.12 · Vercel · GCP · Cloudflare

Ship beautiful
websites.
In Python.

Gravity bundles everything a production site needs — Flask routing, Gunicorn workers, Docker deployment, JWT auth, a CSS design token system, and Adhara CMS — ready the day you clone it. No Node.js. No build step. No framework churn.

Built on Flask Gunicorn Docker Cloud Run Jinja2 Adhara
gravity — bash
$ git clone https://gitlab.com/eim_opensource/gravity.git
$ cd gravity && cp .env.example .env && make dev
✓  Gunicorn 4 workers on :8000
✓  Theme: gravity
→  http://localhost:8000

$ make deploy
✓  Deploying to Vercel — no Docker needed
✓  Build complete, assets uploaded
→  https://my-site.vercel.app 
(also: make deploy PLATFORM=gcp or PLATFORM=cloudflare)

Run Gravity locally
in under a minute.

One command clones the repo into ~/projects/opensource/gravity, installs dependencies, and starts the server — no Docker required to try it.

terminal
curl -fsSL \
  https://gitlab.com/eim_opensource/gravity/-/raw/master/scripts/install.sh \
  | bash
Run it again to:
--dockerswitch to a Docker-based run
--theme=photochange the active theme
--updatepull the latest and restart
--stopstop the running server
0
Node.js dependencies
Pure Python, front to back
1
env var to swap themes
GRAVITY_TEMPLATE=your-theme
~5min
to a live URL, any platform
make deploy → done

"The best framework isn't the most powerful one. It's the one you can still understand six months later."

The Gravity Principle — Python-first, always

Clone.
Configure.
Run.

Three steps, running on your machine in minutes. No tutorial hell, no 14-package install, no Webpack config at 2am.

Explore all features
01
git clone https://gitlab.com/eim_opensource/gravity.git && cd gravity

Clone and you're running

The repo includes a working Flask app, Gunicorn config, Docker-compose, admin interface, blog, events, contacts, user management, and the full CSS design system. It renders on day one.

02
cp .env.example .env

Configure in one file

Set GRAVITY_TEMPLATE to choose your theme. Set ADHARA_API_KEY for CMS content. Every runtime value lives in .env — no secrets baked into code.

03
make dev

Running locally

make dev builds the Docker image and starts Gunicorn on :8000. Your site is live on your machine — no cloud account, no deploy, nothing else to configure yet.

Ship it.
One command.

Everything above runs entirely on your machine. When you're ready to put it online, one command handles the rest.

Full deploy guide →
terminal
make deploy

Ships to Vercel by default — no Docker, no config. Add PLATFORM=gcp or PLATFORM=cloudflare for a Docker-based deploy with autoscaling to zero.

One file.
Your entire
look and feel.

Every color, font, radius, shadow, and spacing value lives in :root {} inside a single CSS file. Change a token — the entire site reacts instantly. No pre-processor, no build step, no cache to bust.

  • Colors, backgrounds, borders — all tokens
  • Typography: display + body + mono fonts
  • Spacing, radii, shadows, transitions
  • Swap GRAVITY_TEMPLATE → entirely new site design
public/themes/gravity/main.css
/* Change this block. The entire site reacts. */
:root {

  /* Palette */
  --color-bg:      #0C1220;   /* deep navy */
  --color-surface: #111827;
  --color-accent:  #B8860B;   /* gold */

  /* Typography */
  --font-display: 'Playfair Display', serif;
  --font-body:    'Inter', system-ui, sans-serif;
  --font-mono:    'JetBrains Mono', monospace;

}

/* Swap this env var → entirely new design */
GRAVITY_TEMPLATE=gravity

Everything you need.
Nothing you don't.

Python-native Stack

Flask controllers, Jinja2 templates, Gunicorn production server. Blueprint routing, factory pattern, context processors. No Node.js anywhere.

CSS Design Tokens

One :root {} block drives everything. Colors, fonts, spacing, shadows — edit one variable, the whole site updates.

Swappable Themes

Each client gets their own views/<theme>/ and CSS. Switch themes by changing one environment variable.

Auth Built In

JWT auth via Adhara SDK, token cookies, @login_required decorator, admin role separation — wired from day one.

Deploy Anywhere

make dev runs locally with Docker. make deploy ships to Vercel, GCP, or Cloudflare.

Adhara CMS + Commerce

Blog, events, forms, and newsletter via Adhara API key. Commerce and advanced features unlock with the Adhara SDK — no third-party integrations to configure.

Everything a real production site needs.
On day one.

Clone the repo, set your .env, run make dev. Your site is live in minutes.