Izanami is a shared configuration, feature flipping and A/B testing service perfectly well suited for micro services environment written in scala and developed by the MAIF OSS team.
Izanami provides a friendly UI for non-tech users as an HTTP REST API you can call using you favorite language.

Izanami also provides first class integration. Java, Scala, Node and React and CLI clients are available to integrate Izanami with your application.

Iron is a fast and flexible middleware-oriented server framework that provides a small but robust foundation for creating complex applications and RESTful APIs. No middleware are bundled with Iron - instead, everything is drag-and-drop, allowing for ridiculously modular setups.

Motty provides the simpler way to test your client services.
It is a web application which gives you ability to create your own custom responses.
So you can intuitively and easily mock http responses. All you need to do is typing and click!

Social server with an ActivityStreams API. It's a stream server that does most of what people really want from a social network.

Ncdu (NCurses Disk Usage) is a disk usage analyzer with an ncurses interface. It is designed to find space hogs on a remote server where you don't have an entire graphical setup available, but it is a useful tool even on regular desktop systems. Ncdu aims to be fast, simple and easy to use, and should be able to run in any minimal POSIX-like environment with ncurses installed.

A plugin-oriented tool for automating the investigation of broken hosts and services.

With Serverspec, you can write RSpec tests for checking your servers are configured correctly.

Serverspec tests your servers’ actual state by executing command locally, via SSH, via WinRM, via Docker API and so on.

imgproxy is a fast and secure standalone server for resizing and converting remote images. The main principles of imgproxy are simplicity, speed, and security.

Sensu is an infrastructure and application monitoring and telemetry solution. Sensu provides a framework for monitoring infrastructure, service & application health, and business KPIs. Sensu is specifically designed to solve monitoring challenges introduced by modern infrastructure platforms with a mix of static, dynamic, and ephemeral infrastructure at scale (i.e. public, private, and hybrid clouds).

NGINX Unit is a dynamic web application server, designed to run applications in multiple languages. Unit is lightweight, polyglot, and dynamically configured via API. The design of the server allows reconfiguration of specific application parameters as needed by the engineering or operations.

tus is a resumable upload protocol, with client and server implementations for all platforms!

This package checks if the application resources are running as they should and creates a service status panel.
It has the following main points:

• Highly extensible and configurable: you can create new checkers and notifiers very easily, and you can virtually change everything on it.
• Easy configuration: uses YAML as configuration files
• Resilient resource checker: if the framework is working and at least one notification channel, you should receive notification messages.
• Built-in notification system: get notifications via mail, slack, telegram or anything else you need.
• Routes for: panel, json result, string result and resource.
• Configurable panel design.
• Cache.
• Schedule checks to automatically receive notifications when a service fails.
• View app error messages right in the panel.
• Http response codes 200 and 500, on error, for services like Envoyer to keep track of your app health.

Isso – Ich schrei sonst – is a lightweight commenting server written in Python and JavaScript. It aims to be a drop-in replacement for Disqus.

Postal is a complete and fully featured mail server for use by websites & web servers. Think Sendgrid, Mailgun or Postmark but open source and ready for you to run on your own servers.

Fractal is a tool to help you build and document web component libraries, and then integrate them into your projects.

Component (or pattern) libraries are a way of designing and building websites in a modular fashion, breaking up the UI into small, reusable chunks that can then later be assembled in a variety of ways to build anything from larger components right up to whole pages.

Fractal helps you assemble, preview and document website component libraries, and then integrate them into your web sites, apps and build processes to create joined up, ‘living’ projects.

Fractal can be run from the command line or integrated into your project via its API.

Gitea is a community managed fork of Gogs, lightweight code hosting solution written in Go and published under the MIT license.

Each Mail-in-a-Box provides webmail and an IMAP/SMTP server for use with mobile devices and desktop mail software. It also includes contacts and calendar synchronization. The box also includes automatic DNS configuration, spam filtering, greylisting, backups to Amazon S3, static website hosting, and free TLS (SSL) certificates from Let’s Encrypt. Your box can host mail for multiple users and multiple domain names.

It implements modern mail protocols (SPF, DKIM, and DMARC) and the latest security best practices, including opportunistic TLS, strong ciphers, and HSTS. When enabled, DNSSEC (with DANE TLSA) provides a higher level of protection against active attacks. Exchange ActiveSync is also available as a beta feature.

Riot allows teams to communicate across a wide range of collaboration apps. If some team members use Riot while others use IRC, Slack or Gitter, Riot will allow these team members to seamlessly work together. Riot offers the richest network of communication bridges. Riot lets you run your own server, and provides users and teams with the most advanced crypto ratchet technology available today for a decentralized secure Internet. Riot is entirely open source: all the code is published on GitHub (Apache License) for anyone to see and extend. This means teams can customize or contribute to the code and everyone can benefit from the speed of community innovation. Riot is built on top of Matrix.

Crossbar.io is is a router for the open WAMP protocol, and it is open source. Together with the open source WAMP client libraries it is a connection fabric for components in distributed applications.

Crossbar.io connects an application with a temperature sensor, backend, alarm lamp, mobile frontend and a fan

Components can e.g. be a Web page/Web app frontend, a classic application backend running on a server, an individual microservice, a mobile client, or an IoT device.

Whatever they are, all components connect to Crossbar.io and Crossbar.io enables them to communicate with each other as equals.

GraphQL is a query language for APIs and a runtime for fulfilling those queries with your existing data. GraphQL provides a complete and understandable description of the data in your API, gives clients the power to ask for exactly what they need and nothing more, makes it easier to evolve APIs over time, and enables powerful developer tools.