with HABApp there is another option to create rules and automations for openHAB availabe. HABApp is based on Python 3 and is connected to openHAB trough the REST API. So if someone is familar with Python (3) it is a good idea to try it.
I started writng DSL rules with openHAB 1.x and based on this i think it is a good idea to setup up a collection of threads/topics to map well known DSL things to HABApp things and maybe learn some more options.
Each post should show the DSL trigger and the solution with HABApp and we should not forget to add all the new options that HABApp offers.
I am sure that @Spaceman_Spiff will later transfer the posts to the HABApp dokumentation.