Mustard

A browser extension that lets you annotate any webpage with notes and share them with your Bluesky and/or GitHub followers.

Jared Goering on Twitter / X

Saw this and immediately built it. Open-sourced the whole thing:Ingest URLs, PDFs, tweets, images → LLM compiles a linked markdown wiki → Q&A with citations, knowledge graph, contradiction linting, auto-research, export to HTML/PDF/slides.Been using it nonstop as a personal… https://t.co/ypaXlEA7pn pic.twitter.com/8Z2DLAyQjH— Jared Goering (@jaredgoering) April 4, 2026

Instances

Alternative Twitter front-end. Fork of zedeus/nitter on GitHub.

leaflet.pub/leaflet

a tool for shared writing and social publishing

Open Source

These GitHub repositories contain open-source software developed by the Observatory on Social Media for various projects

Ian Vanagas on Twitter / X

I've been enjoying writing screenshot essays lately because they provide more depth than tweets while being easier to finish and share than blogs.To help with this, I built a little app that makes it easier to make nice looking ones: https://t.co/mybEawgwgFEnjoy! https://t.co/gMHUCMzRbL— Ian Vanagas (@IanVanagas) March 30, 2024

GitHub issues for notes

GitHub issues is almost the best notebook in the world. Free and unlimited, for both public and private notes. Comprehensive Markdown support, including syntax highlighting for almost any language. Plus …

Mustard Notes (@mustardnotes.com)

I'm a firefox & chrome browser extension that lets you put notes on any website AND have your bluesky/GitHub followers see them! chrome.mustardnotes.com firefox.mustardnotes.com (still in development and a hobby project so expect some rough edges 🙃)

Micropublish: Sign in

Create or modify posts on your Micropub-compatible website. Find out more about the requirements.

Rito

A social bookmarking platform connecting users and developers.

Rito

A social bookmarking platform connecting users and developers.

Peersky Browser (@peersky@mastodon.social)

Attached: 1 image 📝 v1.0.0-beta.20 — Introducing P2PMD A real-time peer-to-peer Markdown editor for notes and collaboration that syncs directly between peers, with no servers in the middle. Release: https://github.com/p2plabsxyz/peersky-browser/releases/tag/v1.0.0-beta.20 #PeerSky #p2pmd #markdown

Embracing ATProto, part 2: Tangled Knots and social coding

You thought Github was a social coding platform? Think again, and get ready to tangle! Built on atproto, tangled allows you to use your Bluesky/atproto identity on a (not quite yet) fully feldged git platform!

The Astrosky Ecosystem: An independent online platform for science communication and social networking

While almost everything that astronomers study occurs in the vacuum of space, astronomy itself does not `happen in a vacuum'. Interactions between scientists, as well as outreach to members of the public, improve extensively from access to good communication tools. Social media has become a key tool for communication in astronomy, being widely used by individuals and organizations alike for networking, outreach, and more. However, traditional social media is reliant on benevolent corporations providing a free service without compromising on quality, and the recent takeover and decline of Twitter has shown how vulnerable these platforms can be. In this proceeding, we present The Astrosky Ecosystem, which is an initiative to develop open-source tools and integrations for social media, principally the Bluesky social network. We explain how our project enables the astronomy community to operate its own social media infrastructure, independent of for-profit corporations. We also discuss some of the project's technical aspects, including its use of the AT Protocol for social networking, before concluding with ideas for the future.

GitHub - prathyvsh/networked-notebooks: Hyperlinked notebooks

Hyperlinked notebooks. Contribute to prathyvsh/networked-notebooks development by creating an account on GitHub.