There’s actually scope for someone to set up / sell local compute hardware+software packages, similar to all those coin miners.

I think that'll be a viable target in the future, and have little doubt some are jumping on it already. However, I also think it's too much of a moving target currently, a near optimal setup changes almost entirely month to month.

I find myself targeting last months setup, as then there's enough literature out there to get it set up in a day or two and most of the kinks have been worked out. Otherwise, I lose too much coding time to debugging the bleeding edge.

IMO, at the moment, if you're not capable of setting it up yourself you likely don't have the experience to use it reasonably safely nor an adequate understanding of its limitations. You'll find yourself using more time fixing the blunders than you gain, and / or the project will spiral out of control in maintainability, security, readability, and so forth. You could get away with small projects written as 'write only' code ala Perl though, keep the prompts and tests, when it needs to change rebuild with the newest hotness. Inefficient and unsatisfying though.