Is there an open source version or something of this? I had similar ideas and this is something I would have liked to contribute to. I was thinking of approach

Is there an open source version or something of this? I had similar ideas and this is something I would have liked to contribute to. I was thinking of approaching the white listing problem by whitelisting users, I. E. I share my node with friends I trust, and that gets propagated through the network depending on trust levels.