My feedback :
1. Make your website/page open-source, no one would use bitcoin wallet/seed generator on closed-source website or/and online devices.
2. I don't know much about Human-Simulated Riffle-Shuffle/Overhead-Shuffle, but i'm sure Fisher-Yates Shuffle is pretty simple way to randomize data and isn't good source of randomness.
3. Your idea is pretty cool
1. Make your website/page open-source, no one would use bitcoin wallet/seed generator on closed-source website or/and online devices.
2. I don't know much about Human-Simulated Riffle-Shuffle/Overhead-Shuffle, but i'm sure Fisher-Yates Shuffle is pretty simple way to randomize data and isn't good source of randomness.
3. Your idea is pretty cool
I just added Real Time "256-bit Stream" True Quantum Random Number Generator to the project!