This is a challenge mod. Or you may see it as a mod for someone who doesn't have enough patience
to beat the whole game, yet manages to launch his first few rockets. Think of it as a way to add
extra difficulty without completely altering your gameplay.

The mod does very little on itself - it adds a single recipe - and even that could be disabled in the mod settings.
Because of so little change there is no point adding it to an existing save.
However if you consider starting a new Krastorio2-SO game it is the perfect moment to throw this mod into the mix.

Further fine-tune your challenge:

• install Imersite Asteroids (more ore but also more challenge)
• disable makeshift processing unit in mod settings (could be grindy)
• disable imersite rifts as well (rely on imersite asteroids)

Is it possible?

While testing, I was able to launch my first rocket to space in 10 hours and 20 minutes without the extra recipe (pure K2-SO experience).
I'm pretty sure this could be cut down even to 8 hours, I just wasn't in any hurry.

But how?

SPOILER ALERT
If you absolutely can't figure out how to get the rare metal ore without any deposits, here is a tip: the technology you are looking for is called "Ore enrichment".