I am also curious about this and I also like Controllino (Maxi Automation) a lot. The modular nature of myPLC looks ideal for my purposes. But as @jstap mentioned nearly 2 years ago, this has been in beta for a long time.
Has this project been discontinued in favour of NEO?
For me, myPLC looks like a more promising concept than NEO. For example, The DIN rail mounting makes it very suitable for small industrial and domestic installations
Will NEO give this kind of flexibility and mounting options? Will it cater for similar use cases?