I saw somewhere that it's impossible to get command blocks with PocketMine. Is this really true? If so, it's a dealbreaker for me, as I use them all the time to teach my students about coding.
Hmm. I see it's in alpha, which kinda scares me. And I'm guessing that you're saying that command blocks are not doable in PocketMine?
You might want to try using https://github.com/tedo0627/RedstoneCircuit_PMMP-Plugin Though it might not work exactly like vanilla
Visual feedback which comes from coding pocketmine plugins gave me the encouragement and engagement that kept me learning. Five years later - I'm getting a job as a PHP Developer in big IT company without ever attending any single lecture or receiving diplomas/certificates. To anyone Who's wondering, employees mostly don't care about papers if you're able to prove yourself.