Hi, I'm Greg Osefo and I just released my tool Schemer for Mac OS and Windows. It's a Scheme programming language interpreter with a built-in tutorial mode as well as in-application help documentation. The tool is geared towards helping anyone (programmer or non-programmer) become familiar with Scheme and to perform basic programming.

Please visit https://gregosefo.itch.io/schemer and see if it's something you might be interested in trying out! Happy Scheming!