Why did nobody invent it before though? 

 Just wanted to comment this, then saw your comment😂 

 Mutiny with Federations is my new favourite to recommend 

 What's the point of your own pool or a small pleb pool? If you don't have huge hashrate you will never find a block anyways, that's the point of people hashing to big pools. 

 Fedimint will be enough for the planet. Tons of small, unregulated federations < 1000 users will be reasonable secure and way more distributed than the current banking system. 

Normal users just want do download an app and start transacting, and this is a great solution without capturing them in a single regulated custodian. 

 Here is a great introduction to the technical side of chaumian ecash by @waxwing

https://www.youtube.com/watch?v=VwMzNE1D3so 

 This should really be done to prevent further potential damage resulting of an unintended testnet monetazion  

 Test 3

https://www.youtube.com/watch?v=nMfPqeZjc2c&pp=ygULd2hpdGUgbm9pc2U%3D