This is more of a procedural guidelines proposal than anything. You can find the current guidelines linked on the voting page at the top, but here's the current guidelines:
https://peakd.com/spsdao/@clayboyn/sps-governance-community-proposals-v2
They should be up to date with current terminology (we used to call them pre-proposals but that got confusing) and reflect the last guideline adjustment proposal.
Here's the whitepaper that we're building from:
https://sps.splinterlands.com/in-game-governance
As far as the algos, SPS Chain is in active development, but you can review its code here:
https://github.com/TheSPSDAO/SPS-Validator