License

[ghost]

Could you please indicate the license?

[dhillwig]

Hi Fred,

I would like to present Karel in a printed book and use screenshots there. Do you have any license terms or how can I reach you to clarify this?

Best regards Daniel

[fredoverflow]

I would like to present Karel in a printed book and use screenshots there. Do you have any license terms or how can I reach you to clarify this?

My software must be provided to your readers free of charge. In other words: do not hide a copy of my software befind a paywall. Just link to the original github repository or a free fork or some other means of free download.

You can charge your readers for the book itself, of course, but not for (access to) my software.

Please make perfectly clear to your readers that I am not the original inventor of Karel The Robot (that honor belongs to Richard Pattis at Stanford University), I have never read your book and have no affiliation with it.

Also, please do not include solutions to the majority of puzzles in the book. The point of Karel The Robot is for students to find their own solutions, even if they aren't "perfect". There's way too many spoilers available online already ;)