[jjk166]

There will be lots of stuff, but what are the odds that exactly the thing you need will be available and in working condition? If you can make something entirely from scratch, you can make any subset of it from scratch. More generally, developing the means to do something yourself gives you a much deeper understanding than simply utilizing someone else's solution.

[NegativeLatency]

Sure I’m just saying smelting ore would probably not be necessary as there would be lots of iron aluminum etc laying around for casting for example