So what is this thing really?
Firefly III is a web application written in PHP 7.1 with a database behind it that can be the tool you use to manage your personal finances. For more information, please read the full description.
How can I use it?
You must install it yourself on webhosting of your choice, or on a webserver you have access to. The installation guide can help you.
Can I try it first?
I have found a security related issue
Please contact me asap.