A distributed relational database that uses SQLite as its back end. Eventual consensus of all nodes that relies upon quorum. Automatically elects leaders in the network of servers. More lightweight than MySQL or Postgres. Has a REST API built in. Fully transactional. Hot backups possible. Uses SQLite in "all in memory" mode by default for efficiency, but can maintain on-disk database files with a command line option (the on-disk transaction log can be used to repopulate the in-memory database on startup). Written in Go.

A grid computing project to help find new anti-malarial drugs. Download, install, and crunch numbers in your spare time to help save lives.

A web application for archiving, indexing, and managing your online media content, such as your photo albums, videos, and artwork. Aims to replace Flickr, DeviantArt, Smugmug, Picasa, YouTube, and the like because you will have control over your content and thus be resistant to censorship (plus if they go down your stuff will still be available).

A protocol for transferring encrypted JSON traffic over pretty much anything, from TCP to IRC to sneakernet. Implemented in Python.

Asyncoro is a Python framework for writing massively distributed applications. Designed to work in an asynchronous fashion (including non-blocking network socket handling) on as many OSes as possible. Supports SSL, locking, execution of routines on remote systems, and hot-swapping of code. Even does asynchronous database access.

A curated list of awesome tools and software for sysadmins.