Does anyone know “asciinema”? Maybe you have heard about it before, but now it is more powerful.
You can use “asciinema” to record the screen of your terminal on Linux or Mac. (Oh no Windows…)
And replay the record as many times as you want, or share it with friends!
Download it from https://asciinema.org/ and have fun! The official documentation is simple and fine.
My demo: https://asciinema.org/a/ezxtma86oa5swwds8toqqhf2m
Note: I’m just a user of asciinema. 
Looks nice, I can see this becoming the easy way to show bugs or features in the game without going through the rigmarole of youtube/etc
Why no windows? :c
Because the Windows cmd.exe is a lot different from the Linux/Mac terminal.
If you can play the linux version through a tunnel with PuTTY…(you must find a linux machine first)
Or use the virtual machine, like Ubuntu in VirtualBox.
…or simply burn a Live linux distro on a DVD, and boot your PC from it. Assuming you are familiar with linux-based systems, run the game and asciinema side-by-side. Know that you should declare a partition or two for linux’ sake, nevermind the OS files being stored on a removable media.
You could also use an ubuntu-based portable distro with persistent configuration, such a some versions of Puppy linux. It should fly on a modern computer and you could keep all the additional packages required to compile and run the game too.