A community cannot manufacture solar panels or high capacity batteries either. Like it or not, these things require large supply chains to manufacture in volume
Same with batteries, but just not in a way to compete with the large scale industrial processes. A wind turbine is far easier here.
Still, with improvement of tools, I can see a future, where even small communities have the capacity to practically make their own solar panels and their own batteries. But also buying it from the next industrial center makes sense to me (not at odds with the solarpunk idea to me).
I also do see small nuclear reactors a possibilitiy for those small communities, but I really don't see humanity advanced enough, to handle so much distributed radioactive material, without having dirty bombs or improvised nuclear bombs going off regulary.
If you have access to a supply chain that digs up the materials you need from the ground and manufactures fancy glass panes and circuitry and such for you, then sure. You can assemble a solar panel at home
You can do a lot with very little if you have realistic goals. Of course if the goal is to keep everything the same you're utterly fucked from the get go.
It's much easier to be sustainable in a small well built rectangular passive house than in the average texan mcmansion atrocity (bad insulation, insanely inefficient shapes, &c.) for example
thing is, nuclear is not punk. It requires large-nation-scale financing.
A community cannot build a nuclear power station.