Software
Discourse
Discourse is an open source internet forum and mailing list software. The application is written with Ember.js and Ruby on Rails, and can be self-hosted in the cloud or on local hardware for free. Discourse also provides managed hosting starting at $100/month, so that you can focus on building a community rather than installing software and managing servers.
Flarum
A free and open-source modern forum software written in PHP. With Flarum you can eaisly setup your own discussion froum and host it online.
Kotlin
At Google I/O 2017, Kotlin was announced as to official development and programming language for Android. As it became the third language to be fully supported by the platform with Java and C++. However, Kotlin can also be used cross-paltform for native, server-side and web development as well as for data science projects. The language is statically typed and general-purpose, and is designed from the bottom up to increase developer happiness.
W3 Total Cache
W3 Total Cache (W3TC) is a WordPress plugin that improves the SEO and user experience of your site by increasing website performance and reducing load times. With W3 Total Cache, it's simple toimplement caching strategies and a content delivery network (CDN) for your WordPress-powered website or blog.
FreeOTP
FreeOTP is a token-base two-factor authentication application available for Android and iOS. The application provides implementations of HOTP and TOTP which means that there is no proprietary server-side component used to generate two-factor authentication. Tokens used for authentication can easily be added by simply scanning a QR code.
Gnome Authenticator
Gnome Authenticator is a GNOME-based two factor authentication application built for Linux-based operating systems for both mobile and desktop.
OpenUserCSS
With OpenUserCSS you can change the look of other websites. OpenUserCSS contains a wide range of themes that are easy to apply, to make websites more readable.
ArchiveBox
ArchiveBox is a free and open source, self-hosted web archive. With ArchiveBox, you can takes a list of URLs that you want to archive, and creates a local, static, browsable HTML clone of the content from those websites. ArchiveBox supports archiving of HTML, JavaScript, PDF, images and other media files.
Openswan
Openswan has been a popular VPN alternative for Linux users since2005. It is an IPsec implementation with support for most of its extensions (RFC and IETF drafts), even IKEv2, NAT Traversal, X.509 Digital Certificates and more. Openswan comes packages with various Linux distributions, including Gentoo, Fedora, Ubuntu, Red Hat and others.
Uplay
Uplay is the ecosystem of players services for Ubisoft games across all platforms. It aims at giving the best environment for all players to enjoy their games and connect with each other whatever the device. Uplay is a free service available corss-platform.