A smart contract, including JavaScript that handles more complex voting for groups.

In detail, this smart contract handles:

• Timeout of the contract after X days (can be set externally)

• Contract stages to allow for revealing results with automatic transition after 30 days

• One voter can only vote once

• Votes can be cast for candidates for multiple category groups

• Only contract creator can set some essential settings

• Ownership of contract can be changed

• Candidates and categories are added onChain

• The frontend will only show the voting dialog as long as the contract is open.

• Once conctract is closed, voting results will automatically show up for candidates grouped into categories