Looking for Church Management Software - Powerchurch Alternative for Linux Mint 20

I do accounting for a very small church and have used Windows for most of my computing. As a result I have used Powerchurch which I am familiar with. I need to find something that I can download and use on Linux Mint 20. It would be best if it were free or a small one time fee. I don't want Cloud-based software. Does anyone have any experience with these type of programs? Could you make any recommendations?

Thanks.