Do you know these situations, when you have to deliver some results reliably, but the planning and the execution control is missing? What do you do? You typically start with an Excel sheet to get an overview of what has to be done.
In the beginning, everything is fine, but soon there is more than one iteration or even a network of dependencies, and then you are in deep trouble again. Then you think about using MS-Project (or something similar), but that costs money, need to be installed, and has way too many unnecessary functions. Same for Agile, try to use Jira (or something similar) a lot of features and overhead.
And worst of all, neither project nor agile tools have a build-in execution control based on buffer management like in Critical Chain Project Management (CCPM)!
Two years ago, I finally was in desperate need of simple project planning and execution management tools, so I sat down and programmed it for Excel!
Since then, I sent it out something around 300 times, and I get positive feedback about how useful it is. If you want to try it on your own - send me an email: firstname.lastname@example.org, and yes it's free*.
Tutorial Videos on YouTube
Explaining how to use the Excel and how Critical Chain Project Management works.
(1) yes, it's free. Beware, the Excel is licensed under the Creative Commons BY-SA. You can use it for everything you want (even earn money with it), but you have to give correct credentials
(2) from time to time, you'll see a "Speed4Projects" label. That was my former company and brand - unfortunately, I lost it. But it's still the same Wolfram Müller
(3) yes, you could use the excel for agile releases (not sprints) too. But maybe the original reliable-scrum stuff is a little easier to us