Free Software for Linux
Seafile
Seafile is an open source file sync & share solution designed for high reliability, performance and productivity. Sync, share and collaborate across devices and teams. Seafile can be self-hosted, or provided as a managed and hosted solution. With Seafile, you can rest assured that your files are safe as all files are encrypted before syncing with the server, even system administrators have the capability to view your personal files.
Epiphany
Surf the web with a fast & lightweight web browser. Epiphany is a web browser built specifically for elementaryOS that lets you use modern websites and web apps while being lighter on battery life.
Garuda Linux
Garuda Linux is a free and open-source Arch-based Linux distribution. The mission of Garuda Linux is to provide a stable and easy to install version of Arch Linux. Garuda Linux supports the following desktop environments KDE, GNOME, Xfce, Cinnamon, MATE, LXQt-kwin, Deepin, Wayfire, BSPWM and i3wm and can easily be installed with the Calamares installer. On top of that, Garuda Linux provides GUI's for package management with Pamac, kernel and driver management with Garuda Settings Manager, GPU switching for Optimus laptops with Optimus Manager, manage common tasks with Garuda Assistant, and a GUI for installing curated gaming software called Garuda Gamer.
Sia
Sia is a decentralized storage platform secured by blockchain technology. The Sia Storage Platform leverages underutilized hard drive capacity around the world to create a decentralized data storage marketplace that is more reliable and lower cost than traditional cloud storage providers. With Sia you can store files in the decentralized cloud without signup requirements, servers and trusted third-party providers. On average, Sia's decentralized cloud storage costs 90% less than incumbent cloud storage providers. Storing 1TB of files on Sia costs about $1-2 per month, compared with $23 on Amazon S3.
Imgur
Imgur is a free image sharing and hosting service that is commonly used by people that want to share images on social media. With Imgur users can discover, share and discuss their images with others online.
Kibana
With Kibana you can visualize your Elasticsearch data and navigate the Elsatic Stack. The Kibana user interface is released free and open-source and allows you to visualize anything from query load to understanding request flows throughout your application. Kibana also integrates with popular third-party technologies such as Apache Flue, Fluentd and many more.
OpenToonz
OpenToonz is a free and open-source, 2D animation product software published by DWANGO. OpenToonz is based on the source code of Toons by Studio Ghibli and features sequence number scanning can be conducted efficiently according to in between animation numbers. Four types of scanning (black & white, colored, with or without binarization). Scan settings that can be saved and reproduced. All while being compatible with the TWAIN standards.
Zig
Zig is a general-purpose programming language and toolchain for maintaining robust, optimal, and reusable software. It's a simple programming lanaguage that gocus on debugging your application rather than debugging your programming language knowledge. Zig provides no hidden control flow, hidden memory allocations, preprocessor and no macros. Allowing developers to write fast and clear code capable of handling all error conditions.
JanusGraph
JanusGraph is a free and open-source distributed, scalable graph database optimized for storing and querying graphs containing hundreds of billions of vertices and edges distributed across a multi-machine cluster. The project is managed by The Linux Foundation and is released under the Apache Software License 2.0. Large corporations like Expero, Google, GRAKN.AI, Hortonworks, IBM and Amazon also supports the project.
Mageia
Mageia is a community-based Linux distribution designed for desktop as well as server use. Mageia is built by a nonprofit organisation of elected contributors with a mission to build great tools for people. Besides delivering a secure, stable and sustainable operating system the organization strives to create a credible and recognized community in the free software world.