Image below shows a spoked stainless rim from my Roadster. A band of special sealant is carefully added to cover spoke nuts and so give an airtight seal to accept tubeless tyres alone.

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Here I'm repairing damage due to foolishly adjusting a slightly loose spoke in situ blush

Richard

2018 Roadster 3.7
1966 Land Rover S2a 88
2024 Royal Enfield Guerrilla 450
1945 Guzzi Airone