How does stratum solo mining work?
Easy. You are running a full node
zcashd and stratum. Your rigs connected to stratum and stratum connected to full node. Stratum polls
zcashd for new jobs and forwards it to your miners. When one of your GPUs will find a block stratum will forward it to
zcashd and you will receive block reward. But there is a caveat, if your hashrate is small it can take very long tome to find a block. Solo is suitable for big, mid-range farms and hobbyist.
My stratum is also have additional features like rig monitoring, JSON API, daemon failovers so you can apply new releases of zcashd without mining interruption, if for example one node goes down for some reason stratum will automatically switch to a second backup node if it is specified. It's also very stable, fast and highly efficient.