Hi Denis,I finally read Section 3. I left two comments where I do not understand why something happens. I will appreciate a further explanation :-)��Here is the pull request:��https://github.com/SquareBracketAssociates/ ��Booklet-Infrastructure/pull/2 I have found out that the code in the Calypso chapter does not work. I was able to change some of them. Do you want me to commit what I was able to change? Well, you should check if the changes are correct.Cheers,JurajOn Dec 27, 2017, at 13:20, Denis Kudriashov <dionisiydk@gmail.com> wrote:Hi Juraj.You can find new version here��https://github.com/SquareBracketAssociates/ . It is still draft version but in general all parts are covered now.Booklet-Infrastructure 2017-12-06 12:47 GMT+01:00 Juraj Kubelka <juraj.kubelka@icloud.com>:Hi Denis,Thank you. Let me know. I will be happy to help.JurajOn Dec 5, 2017, at 18:43, Denis Kudriashov <dionisiydk@gmail.com> wrote:Hi Juraj.Yes. documentation needs to be improved. I made only pass on it.��Now there is new Commander version. The code still in��dev branch. The basic idea is same but some names are changed and internally it is based on��ClassAnnotation's. It became more simple and flexible.��This week I should release new Calypso version. And after I will work on documentation for both projects. Commander will be first. And next week I will have update on it.2017-12-05 21:05 GMT+01:00 Juraj Kubelka��<juraj.kubelka@icloud.com >:Hi,I like the idea of the Commander library��https://github.com/dionisiydk/Commander ��I am trying to understand how to use it, but I struggle to understand it as documentation includes quiete complex examples:��https://ci.inria.fr/pharo-contribution/view/Books/ ��job/PharoBookWorkInProgress/la stSuccessfulBuild/artifact/boo k-result/Commander/Commander.h tml I believe that it would be useful to have a tutorial that shows:1. create a command CmdOne including methods,2. create a activator ActOne including methods,3. create a context CtxOne including methods,4. execute <I do not know what> and you obtain a collection with one item (CmdOne instance?)5. create command CmdTwo with some methods6. execute <I do not know what> and you obtain a collection with two itemsThen next section could describe how to make a UI on top of this.Thank's for initiative. It is exactly what I will do.��Learning it by exploring Calypso is too complex, because it involves more objects and I actually do not see how to do the previous steps.I agree, current version is a bit complicated inside. But it is already fixed. And there will be update soon.������I will be happy to help with the documentation.My question is: How can I proceed the mentioned steps?I would appreciate for your help. I will call you for review next week.Best regards,DenisThanks,Juraj