The companion rerender storm (~46 renders/2s from RAF loops) was causing
the animated SVG subtree to be replaced on every render, killing SMIL
and CSS animations (dizzy spirals, sleepy Zzz, etc.).
Three root causes fixed:
1. Ref-based gaze: eyeOffset was React state updated every frame in
useBlobbiCompanionGaze, propagating rerenders through the entire
companion tree. Now writes to a ref that useExternalEyeOffset reads
imperatively via its own RAF loop — zero React rerenders for gaze.
2. Memoized SVG renderer: created MemoizedBlobbiVisual (React.memo)
that only rerenders when visual content changes (blobbi, recipe,
emotion, bodyEffects). Reaction CSS classes (sway/bounce) moved to
an outer wrapper div in BlobbiCompanionVisual so className changes
don't touch the dangerouslySetInnerHTML container.
3. Stable recipe references: resolveStatusRecipe() returned fresh {}
objects for neutral state, defeating memo comparators. Now uses
shared frozen EMPTY_RECIPE and NEUTRAL_STATUS_RESULT constants.
Ditto
Your content. Your vibe. Your rules. A fun, customizable Nostr client that puts you in control.
About
Ditto is an open-source, decentralized social media client built on the Nostr protocol. It's designed for people who want to have fun online without feeding the Big Tech machine. Express yourself with custom themes, Lightning payments, and an ever-growing set of content types -- all while owning your identity and data.
Made by Soapbox.
Features
- Theming -- 9 built-in theme presets, 19 CSS token properties for full customization, and the ability to publish and share themes as Nostr events
- Infinite Content Types -- Text notes, articles, short-form videos (Divines), live streams, polls, follow packs, color moments, magic decks, geocaching, and Webxdc mini-apps
- Lightning Payments -- Zap posts and profiles with sats via Nostr Wallet Connect (NWC) or WebLN
- Private Messaging -- End-to-end encrypted DMs (NIP-04 and NIP-17)
- Comments -- Comment on anything: posts, URLs, profiles, hashtags, books, and more (NIP-22)
- Self-Hosting -- Builds to static HTML/JS/CSS. Deploy anywhere -- GitHub Pages, Netlify, Vercel, a VPS, or a Raspberry Pi
- Mobile -- Android native app via Capacitor, responsive design for all screen sizes
Getting Started
Prerequisites
- Node.js 22+
- npm 10.9.4+
Development
git clone https://gitlab.com/soapbox-pub/ditto.git
cd ditto
npm install
npm run dev
The dev server starts at http://localhost:8080.
Build
npm run build
The built site is output to dist/.
Test
Runs type-checking, linting, unit tests, and a production build:
npm test
Configuration
Ditto is configured through a ditto.json file at the project root, read at build time. This file is gitignored so each deployment can have its own configuration.
{
"theme": "dark",
"relayMetadata": {
"relays": [
{ "url": "wss://relay.ditto.pub", "read": true, "write": true }
]
},
"blossomServers": ["https://blossom.ditto.pub"],
"feedSettings": {
"showPosts": true,
"showReposts": true,
"showArticles": true
// ...and more content type toggles
}
}
Configuration is resolved in three layers (highest priority first):
- User settings stored in localStorage
- Build config from
ditto.json - Hardcoded defaults
Use an alternate config file path with: CONFIG_FILE=./my-config.json npm run build
Custom Branding
For self-hosted instances:
- Replace
public/logo.svgandpublic/logo.pngwith your logo - Update the app name in
index.htmlandpublic/manifest.webmanifest - Replace
public/og-image.jpgfor social sharing previews - Set default relays and upload servers in
ditto.json
Deployment
Ditto builds to static files and can be deployed anywhere that serves HTML.
- GitHub Pages / GitLab Pages -- Push to
mainand CI auto-deploys - Netlify / Vercel -- Connect your fork and deploy. A
_redirectsfile is included for SPA routing - VPS / Any web server -- Build and copy
dist/to your server. Configure SPA routing (e.g., Nginxtry_files $uri $uri/ /index.html)
Android
Build a native Android app with Capacitor:
npm run build
npx cap sync
npx cap open android
Tech Stack
| Layer | Technology |
|---|---|
| Framework | React 18 |
| Build | Vite |
| Language | TypeScript |
| Styling | TailwindCSS 3 + shadcn/ui |
| Routing | React Router 6 |
| Data | TanStack Query |
| Nostr | Nostrify + nostr-tools |
| Mobile | Capacitor |
| Testing | Vitest + React Testing Library |
Project Structure
src/
components/ UI components (100+), including shadcn/ui primitives
hooks/ Custom React hooks (65+)
pages/ Page components for each route (30+)
contexts/ React context providers
lib/ Utilities and shared logic
test/ Test setup and helpers
public/ Static assets, icons, manifest