ordian

> Did you think could be still needed? I think node groups is a cleaner syntax than manually specifying nodes when you need > 3 nodes and avoid typical copy-paste...

Generalizing students feedback so far: - Compilation takes too long. Need to provide instructions with how to build all needed binaries at least 1 day prior to the exercise. -...

* Junctions: having an enum with multiple variants vs `BoundedVec` means no allocations, but also the size of the struct is very big on the stack (`8 * mem::size_of::() +...

Related topic: https://github.com/Polkadot-Blockchain-Academy/pba-content/issues/552