Kopia

Kopia is an open-source backup solution.  A command-line and GUI option is available.

https://kopia.io

https://www.howtogeek.com/forget-windows-built-in-backup-i-use-this-free-and-encrypted-software/

NetGuard

NetGuard is a network firewall for Android.  A free version is available as well as a pro edition with additional features.

https://www.howtogeek.com/how-to-completely-block-apps-from-accessing-the-internet-on-android/

https://netguard.me

OSDCloud

OSDCloud is a free PowerShell framework for deploying Windows 10 and Windows 11.

https://4sysops.com/archives/deploy-windows-11-with-osdcloud/

https://www.osdcloud.com/

Thonny

Thonny is a Python IDE for beginners.

https://thonny.org/

SQLMC

SQLMC is an utility to scan web sites for SQL injection issues.

https://github.com/malvads/sqlmc

Zeam

Zeam is a free streaming service that offers access to content from local news stations around the United States.

https://zeam.com/

MasterParser

MasterParser an utility for the analysis of Linux logs within the var/log directory.  It scans supported logs such as auth.log to extract details including SSH logins, user creations, event names, etc.

https://github.com/securityjoes/MasterParser