Been a bit, so welcome to corrections.
Assuming you get these all in your hand turn one,
Black lotus and mox ruby have zero mana cost, play those. Use the black lotus to give you two green and one of your choice to pay for channel, sacrifice 19 life to add 19 mana to your manapool. Use the mix ruby to pay the red mana cost for fireball and then use the 20 mana in your manapool as the x cost, make opponent take 20 damage and you’re done.
Unless it’s changed, artifacts dont suffer from summoning sickness so you can use the tap abilities out the gate.
There’s some counters like Foil, Force of Will that I think could work or Misdirection. Can’t recall if there’s any instants that do damage that you can discard or exile cards from your hand instead of paying for because that could work too as fireball is a sorcery (if I recall how the stack works correctly)
Debian and derived is my go up generally, stable and I like apt, great out of the box on every machine I’ve used and personally found pretty much everything I want to use or run has debian and Ubuntu explicitly called out in their setup documentation. I use Ubuntu server a lot for work, I’m comfortable with it and it’s supported in every cloud environment I’ve touched. Debian on my laptop, bench machine, armbian on my 3d printers, Ubuntu server on my home server (though I kinda want to move that to debian too, just lazy and it works)
I’ve got arch on my desktop, could have probably gone for debian unstable, but figured I’d go for it. I use aura for package management. Linux is linux though, be real that I personally don’t find much of a difference beyond package management.