I was wondering if there's any desire to add fulgora terrain to the map? I'm not even sure I'd care if there were scrap or if the Seas were heavy oil but I like how it looks and it'd be somewhat neat if we could still get scrap from the structures.

I tried to do this, but i did not like my implementation. The idea was to spawn the fulgoran ruins as chests and you can then mine them with inserters. However chests are limited to 65536 slots which means i can not get millions of scrap per fulgoran ruin. I did not like the idea of scrap anyways since its really OP on nauvis.

You could still do fulgora terrain without scrap. Spawn fulgoran islands and cities as patches surrounded by oil seas and instead of scrap deposits they could hold the holmium deposits, with the only scrap coming from the buildings as a byproduct of clearing space in the same way wood comes from trees.