Or you can just edit the max level and gain of storypoints/skillpoints in the settings of Starsector with Notepad++, anyone can do it without this mod.
Yeah, most anyone could. But, not everyone knows how to--or doesn't feel comfortable--editing .java and .json files. Or maybe they don't have the tinkerer's inclination to spend the time trying to figure out how to keep things close to vanilla balance while increasing max level. So I figured, since I put in a bit of time to create this for myself, I'd upload it to save other people the trouble, and create a few variants so everyone has an option they'd like.
I think this mod gives custom SP curves so that you retain the 1-15 SP curve while having a level cap increase.
Still trying to figure out how to do that, I'm afraid. Right now, you still get 4 (or 2, if you're using Fast) Story Points per level, and uses an almost vanilla-- though slightly gentler--levelling curve to level 15, which then scales up to roughly 4 million experience points per level at max level with the multiplier for Story Point gain at max level set to 1. That way, the experience needed per Story Point at max level is roughly the same as compared to vanilla. Decoupling Story Points and experience was something I looked at, and am still looking at, but the only way I've figured out how to do it is really hacky and inefficient: using BaseCampaignEventListener, I could write something that checked if Story Points should be added whenever the player does any of the triggers in that class by looking at their raw experience as compared to some array I'd make.
The problem is that means that Story Point gain wouldn't occur regularly or smoothly, only when those specific triggers happen, so there's a good chance that you won't get a Story Point when you should, and instead get it a bit later, and every time any of those triggers happened it'd loop through the check--which could cause a minor drop in performance, especially on low-end computers and/or heavily modded installs. I don't like deploying things for other people to use that are jury-rigged unless there is literally no other way. Also, the gain for doing it that way is largely minimal, because you still need to scale experience needed per level up to a higher value, it's just that the ~4 million I chose for the final level was by virtue of it being how many experience points you need per 4 Story Points at max level in vanilla. The only real reason I'm still trying to figure it out is that I don't know how to do it, and I refuse to leave this problem unsolved.