Backup utilities:
    - E-Mail, Chat, other comm.
        IMAP Backup - https://github.com/joeyates/imap-backup
        IMAPSync - https://github.com/imapsync/imapsync

    - System
        FSArchiver - https://www.fsarchiver.org/ (linux cli)
        CloneZilla - https://clonezilla.org/ (bootable, any, CLI only)
        Rescuezilla - https://rescuezilla.com/ (bootable, any, GUI)
        Macrium Reflect - https://www.macrium.com/reflectfree (online+bootable, any, GUI)

    - File
        Duplicati - https://www.duplicati.com/

Cloud storage and sync:
    Nextcloud - https://nextcloud.com/ (like Google Drive)
    PhotoPrism - https://photoprism.app/ (like Google Photos)
    Syncthing - https://syncthing.net/downloads/ (decentralized, serverless)

File managers:
    - with GUI
        FileZilla - https://filezilla-project.org/
        Total Commander - https://www.ghisler.com/
        Total Commander Ultima Prime - https://www.tcup.pl/
    - CLI only
        mc
        ncdu (looking for big files/folders)

Command line interfaces:
    - Shell
        zsh
        +oh-my-zsh - https://ohmyz.sh/ (ZSH)
        +oh-my-posh - https://ohmyposh.dev/ (PowerShell)
    - Terminal
        Windows Terminal - MS Store

Driver installer / Package manager:
    Snappy Driver Installer - https://www.snappy-driver-installer.org/
    Ninite - https://ninite.com/ (Windows, Application installer)
    Scoop - https://scoop.sh/ (Windows, Portable (and non-portable) package manager)

Performance monitoring:
    - Linux
        Glances - https://nicolargo.github.io/glances/ (like htop)
        netdata - https://www.netdata.cloud/ (web GUI, cloud support)
        mysqltuner
        iotop

Network monitoring:
    - Linux
        iftop
        iptraf-ng
        nload