Hi, I’m the author of Marcel. If you like it and want to work on it, I can use volunteers, for developing features, debugging, doc, porting, improving the website, you name it.
[1] https://en.wikipedia.org/wiki/Marcel_the_Shell_with_Shoes_On...
For the website, I'm using wix. I'm open to suggestions for using wix better, or choosing an alternative.
I'm working on a not entirely dissimilar project (mine is focused more towards: fabric/ansible/cookiecutter type workflows, leaning on a lot of shell semantics. My workflows and hopefully soon documentation may be useful to you, I'd be happy to contribute them. I auto-build and publish releases to pypi. Project is: https://github.com/linsomniac/uplaybook