Why does it say the app is untrusted when installed?
That is because the app is not "signed", which costs money and that I have none for these projects.
Why does my virus protector detect your tools as malware?
Only 3 out of 75 anti viruses detect my apps as malware, because the app(s) delete(s) and add(s) files to your hard drive. Here is a comprehensive list of all anti viruses that detect it as malware.
Are your tools open source?
None of my tools are open source currently. When I stop development on them I will release them as open source.