This is still a beta version so you may incounter some bugs. 

Kindly Check the Changelog for the Update Information! 

-- Mails --

Void Seeds Machine/Converter - 5 Heart Friendship with Krobus
Void Item Deconstructor - 6 Heart Friendship with Krobus
Void Seeds Maker - 7 Heart Friendship with Krobus

-- Machines --

Void Seeds Machine/Converter :

* Seeds to Void Seeds : Seeds 10x and Void Essence

Void Seeds Maker :

* Crop 1x to Seeds 2-5

Void Item Deconstructor :

* Any Void Item to Normal Item : Void Item and Solar Essence

-- Crops --

Void Melon
Void Radish
Void Ancient Fruit
Void Cabbage
Void Pumpkin

This Area is Outdated! Kindly Check the Changelog.

-- Soon to be Added --

Cooking Items
More Crops
More Machines 
More Items Uses
More Beverages
More Convertible Items

-- Requires --

SMAPI 3.0.0 - To Use Mods
JsonAssets - To Create New Objects, BigCraftables and Crops
Mail Framework Mod - To Make NPC Send Letters
Producer Framework Mod - To Make BigCraftables Produce
Shop Tile Framework - To Make Krobus Sell the Items that are Purchasable or else the Items won't show in the shop! 

-- Optional Mods --

PFM Automate - To Use Automate For Producer Framework Mod
Automate - To Make Chest Act Like Hopper

-- Credits --

6480 for some assets that i used as a template for my mod

Here's his Mod :
https://www.nexusmods.com/stardewvalley/mods/5221