Software for Linux
Swarmlet
Swarmlet is a free and open-source, self-hosted Platform as a Service that runs on any single server. It's mainly intended for use with multiple servers, a server cluster / swarm. Swarmlet is inspired by Dokku and brings the same simplicity to Docker Swarm. Swarmlet also uses Traefik v2 and Let's Encrypt to provide automatic SSL and load balancing on your apps.
DirectAdmin
DirectAdmin is an efficient web hosting control panel that uses the bare minimum of system resources. This makes DirectAdmin ideal for systems ranging from low-end VPS units to heavily-loaded dedicated servers. DirectAdmin follow the latest technology and constantly improves support for third-party tools. Most of the popular web hosting tools, including MySQL, MariaDB, Nginx, Apache Web Server and many more are supported by DirectAdmin.
ISPConfig
With ISPConfig you can manage your servers directly through your web browser. ISPConfig is an open-source panel for Linux-based servers which is capable of managing multiple servers from one unified control panel.
OpenVPN
OpenVPN is a free and open-source VPN client developed by OpenVPN Inc. The software can be used to create secure point-to-point or site-to-site connections in routed or bridged configurations and remote access facilities. OpenVPN uses custom security protocol that utilizes SSL/TLS for key exchange and is compatible with any OpenVPN protocol compatible server.
Plasma Mobile
Plasma Mobile is a free and open-source, Linux-based user interface for phones. The project aims to a complete software system for mobile devices that is designed from the ground up to give users control over their information and communication. Plasma Mobile takes a pragmatic approach and is inclusive to 3rd party software, allowing the user to choose which applications and services to use.
XMind
XMind is the most professional and popular mind mapping application. With XMind you and your team can manage complex information, brainstorming and get work organized, remotley. The application is developed as an open-source software, and released with a free version and a paid commercial "XMind Pro" version.
neo4j
Neo4j is a commercially provided graph database management system developed by Neo4j, Inc. The graph database is fundamentally different to the relational model found in relational database management systems (RDBMS). With Neo4j, each data record, or node, stores direct pointers to all the nodes it's connected to. The database is also designed to perform complex queries with complex connections orders of magnitude faster. Neo4j is ACID-compliant and suited for projects that requires complicated relationship structures.
Visual Studio Code
A free and open source IDE based on Electron and Atom, developed by Microsoft. Visual Studio Code or VS Code is an extensible IDE or coding editor that is loved by many developers around the globe. The editor combines a streamlined UI with advanced code assistance, code nagivation and intellisense.
Xfce
Xfce is a free and open-source desktop environment for Unix-like platforms, such as Linux, Solaris and BSD.
DrJava
DrJava is a lightweight programming environment specifically designed for writing Java. Through its design the IDE foster test-driven software development that leads to scalable and maintainable Java applicaitons. DrJava includes an intelligent program editor, an interactions pane for evaluating program text, a source level debugger, a unit testing tool, and a new code coverage tool.