i tried different ones.
for example this one:
https://github.com/forrestv/p2pool

I also tried to "bootstrap" on bitcoin testnetwork. (deleted all bootstrap addresses), launched with persist=false and changed identifiers but the sharechain just stays empty.

i used p2pool_run.py --testnet

Everything went fine, even with connected nodes, but i the share chain is still empty ..

So overall: im unable to start the initial chain