You can earn more UNIC by staking UNIC (converting into xUNIC).
Unlock other pools, the xUNIC pool rewards do NOT accrue block by block. Instead, the xUNIC:UNIC ratio goes up over time, so when you redeem your xUNIC for UNIC, you actualize the APR.
APR will fluctuate on price, fees (which come from volume) + who enters and exits the pools - it's not a fixed number.
0.05% of all volume on Unicly is taken as fees, and are periodically used to buy UNIC. This UNIC is distributed to the xUNIC pool, making the UNIC:xUNIC ratio go up over time. xUNIC doesn't earn yield block by block, since this conversion is made periodically. This part follows the exact same model as SUSHI and xSUSHI: https://help.sushidocs.com/products/sushiswap-staking-sushibar-xsushi
0.5% of all uTokens minted on Unicly gets vested over 100 days. Any vested tokens can be sold to buy UNIC on the market. The UNIC purchased is distributed to xUNIC holders.
20% of all farming rewards go to xUNIC holders. This percentage is subject to change based on token holder voting.