Open Source Software for Linux
FileZilla
Filezilla is an free and open-source FTP software that can be used to transfer files over the FTP, FTPS and SFTP protocol. The application consist of FileZilla Client and FileZilla Server. The FileZilla Client is used to connect to FTP services whereas FileZilla Server can be used to create and host your own FTP server.
Deno
A new free and open-source JavaScript runtime based on the V8 engine by the creator of Node.js, Ryan Dahl. Deno is written in JavaScript and Rust and allows you to write server-side application with JavaScript or TypeScript in a faster and more secure way. Ryan Dahl set out to create Deno from the ground up to remedy regrets he faced after building Node.js. Deno puts more focus on security and permission, promises, browser capability, imports and modules.
DDEV
DDEV is an open source tool that makes it dead simple to get local PHP development environments up and running within minutes. It's powerful and flexible as a result of its per-project environment configurations, which can be extended, version controlled, and shared. In short, DDEV aims to allow development teams to use Docker in their workflow without the complexities of bespoke configuration.
PureOS
PureOS is a fully audit-able operating system developed and maintained by the privacy-focused Linux device manufacturer Purism. With PureOS you can rest assured that your privacy is taken seriously. The operating system has been independently verifiable by security experts and software developers around the world and is developed and released as a free and open source operating system. Under the hood, PureOS uses the popular GNOME desktop environment which is loved by many in the Linux community for its polish and long standing project commitment.
Shotcut
A free and openly developed video editing software that works cross-platform. Shotcut is developed on the MLT Multimedia Framework and is avalible for FreeBSD, Linux, macOS and Windows. Shotcut is released as open-source software under the GPLv3.
Flathub
Flathub is a application marketplace for open-source applications which can be easily installed on any Linux distribution. With Flathub you can browse applications from your operating systems app center or the command line.
Snap Store
Snap Store is app store for Linux-based operating systems, used by millions of people across 41 distributions. At Snap Store you can easily find and install new applications or remove existing installed applications on your system. Snap Store provides free and open source software that can be bundled by anyone.
LibreOffice Calc
LibreOffice Calc is a free and open-source spreadsheet tool part of the LibreOffice software package. With LibreOffice Calc users can manage spreadshets with its native Open Document Format (.ods), CSV (.csv) and other common formats like the Microsoft Excel format. The software is openly developed by The Document Foundation and the open source community while being released under a combination of license including MPLv2.0 and a secondary license GPL, LGPLv3+ or Apache License 2.0.
USBImager
A really simple open-source, GUI application that writes compressed disk images to USB drives and creates backups. USBImager is avalible for Linux, macOS, and Windows.