Very fair and useful criticism, and great questions that really cut to the chase. Next version of the site will make everything more clear, and you'll hear about it first if you're on the mailing list.
"Do we buy the console?"—yes, details on pricing etc. forthcoming
"Who says what goes in the vials?"–you, and the game designers. The console takes "local inputs"(yours), supplied reagents, and combinations of both.
"Is it necessary to clean it out if its nanopores get gummed up?"–yes, there will be easy-to-follow cleaning protocols for the pore cartridges.
"...replace parts?"–just the cartridges themselves, you'll switch them in and out during and between different games.
Get on the mailing list and all will become clear. We're still early... but there's a substantial no-bullshit vision here worth waiting for.