This looks nice and the syntax is very similar to HOCON. One thing I like about HOCON in general is that everything is "overrideable"/"mergeable". This is nice

This looks nice and the syntax is very similar to HOCON. One thing I like about HOCON in general is that everything is "overrideable"/"mergeable". This is nice because I can have a config set of defaults that needs no other config to run. From skimming the manual here I see that I have explicitly say something is a template or not. But I definitely like that I can make it clear that I require values. Looks great. Sorry, I don't have much more feedback than that, but I will say I fear the typing and inheritance may make it more complicated than configuration end-users want to deal with.