Computer history, and desktop accounting software

silveradept is posting about their computer history over the month of December, in impressive, loving detail.

I started to write about my history in a comment and it got longer than I expected, so I'm bringing it here.

( Started early )

I've been using Quickbooks since I started my business in 1999, and I'm currently running Quickbooks for Mac 2015, which of course won't run on the new machine. I figured I would need to buy the latest version, but it looks like Intuit will no longer sell me their software, only rent it to me for extortionate annual rates, and I don't want to put my financial data online, so my project for the rest of December is to set up and learn Manager, which is free open source accounting software. I would be willing to pay for something I can install on my computer (but only pay once!) but I could only find this open source option.

If anyone has other suggestions for desktop accounting software, let me know!