Here it's a quite innovative and fair way to support the dev and community, without this coin will die. There's only 0.05 DMD for this for each block, so it's a VERY limited supply, like the coin itself is rare and very diluted over very long term.
There would be total 1,100,000 coins to be mined on stage between 400,000 and 1,500,000 coins. 0.05 DMD for each 1.05 DMD mined in this stage will be sent to devs. So our devs will have 1,100,000/1.05*0.05=52,381 DMD while the total supply of that time will be 1,500,000. It's equivalent to ~3.5%.