Modlet server not showing up in server list

[dragonslayer770]

is there a new way to install modlets for a 21.2 b(30)? my server will not show up in the server list if modded.

if it's not modded my friends can find my server in the server list.

here's the mods I'm using 

EpicSpire's 91 Slot backpack and Pack Mule fix A21

KHA21-3SlotForge

KHA21-12CraftQueue

KHA21-HPBars

KHA21-PickupPlants