Self-Sovereign Space

A browser extension for Chrome and Firefox that replaces your new tab page with a self-sovereign personal dashboard focused on crypto, countdowns and intentional living.

No tracking. No analytics. No accounts. Your data stays in your browser.

Features

• Large clock with time-based greeting (GM/GN)
• Personal mantra displayed front and centre
• Bitcoin block height and halving countdown via mempool.space
• Crypto price tickers via CoinGecko (default: BTC, ETH — fully customisable)
• Custom API data feeds — pull any numeric value from any JSON API
• Weather via OpenWeatherMap
• World clocks across multiple timezones
• Countdown timers (e.g. Memento Mori)
• Daily quote rotation from a curated collection
• Daily background from NASA Astronomy Picture of the Day or your own image collection
• Settings modal with tabbed UI for easy configuration

Install

Chrome

1. Clone or download this repository
2. Open Chrome and navigate to chrome://extensions
3. Enable Developer mode (toggle in the top right)
4. Click Load unpacked
5. Select the Self Sovereign Space folder
6. Open a new tab — your dashboard is ready

To update after pulling changes, go back to chrome://extensions and click the refresh icon on the extension card.

Firefox

1. Clone or download this repository
2. Open Firefox and navigate to about:debugging#/runtime/this-firefox
3. Click Load Temporary Add-on
4. Select the manifest.json file inside the Self Sovereign Space folder
5. Open a new tab — your dashboard is ready

Note: Temporary add-ons are removed when Firefox closes. For a permanent install, the extension needs to be signed via addons.mozilla.org.

Settings

Click the gear icon in the bottom-right corner to open the settings modal. Settings are organised into five tabs:

Personal

Setting	Description
Name	Your name, used in the greeting (e.g. "GM Daniel")
Mantra	A personal mantra displayed below the clock
Weather City	City name for weather data (e.g. Queenstown)
Weather Country	Country code for weather data (e.g. NZ)

Display

Setting	Description
Background Images	Add image URLs for a daily-rotating background collection
NASA APOD	Toggle NASA Astronomy Picture of the Day as your background (overrides custom images when enabled)

Time

Setting	Description
World Clocks	Add clocks for any timezone. Use IANA timezone names (e.g. Europe/London, Asia/Tokyo)
Countdown Timers	Add countdown timers to any future date. A Memento Mori countdown (50 years out) is created on first run

All items can be reordered with the arrow buttons or removed with the x button.

Crypto

Setting	Description
Price Tickers	Add any cryptocurrency tracked by CoinGecko. Provide a display label (e.g. SOL), the CoinGecko ID (e.g. solana), and decimal places for rounding

Find CoinGecko IDs at coingecko.com — the ID is in the coin's URL (e.g. https://www.coingecko.com/en/coins/bitcoin → bitcoin).

APIs

Setting	Description
OpenWeatherMap API Key	Required for weather data. Get a free key
NASA APOD API Key	For higher rate limits on background images. Get a free key. Works without one using the demo key
Custom Data Feeds	Pull any numeric value from a JSON API endpoint. Configure the URL, a display label, the JSON path using dot notation (e.g. data.amount), and decimal places

Custom Data Feed Example

Any public JSON API that returns a numeric value will work. Configure the URL, a label for the top bar, and the dot-notation path to the value in the response.

For example, given an API that returns:

{"result": {"price": 42.5, "volume": 1000}}

Set the JSON path to result.price to extract 42.5. Use the decimal place selector to control rounding — 0dp would display 43, 1dp would display 42.5, and so on up to 8dp.

Data Sources

Data	Source	Refresh
Crypto prices	CoinGecko API	5 min
Block height & halving	mempool.space	1 min
Weather	OpenWeatherMap	30 min
Background image	NASA APOD	Daily
Custom feeds	User-configured URLs	5 min

Storage

All settings are saved to the browser's extension storage API (chrome.storage.sync on Chrome, browser.storage.sync on Firefox), which syncs across browser instances if you're signed in. Falls back to localStorage when running outside of a supported browser.

File Structure

├── manifest.json       Extension manifest (v3, Chrome + Firefox)
├── defaults.js          Fallback defaults for optional files
├── fonts/               Bundled Inter font (SIL Open Font License)
├── newtab.html          Dashboard HTML
├── app.js               Application logic
├── styles.css           Styles
├── quotes.js            Curated quote collection
├── backgrounds.js       Local background image references (gitignored)
├── images/              Personal background images (gitignored)
└── icons/               Extension icons

Tech

Vanilla JavaScript, HTML, and CSS. No frameworks, no build step, no dependencies.

License

MIT