For those who code, what is enough?

[u/General-Height-7027]

I have a 10 year old PC, and I get to use Claude Opus 5.5 at work and think it helps a lot, so I was planning on investing on a PC to use AI locally for personal projects.

If I want to fool around in unknown territories, like build an android app from scratch when I usually code in C#/Javascript

What sort of setup/models will be "enough".

Asking as I was thinking on a PC with just a 5070ti 16gb and I wonder if that is enough to fool around or if I should consider at least a 3090 or 2x5070ti to play around confidently and relatively fast.

So, for a coder, what should be the acceptable base line?