Transferring satoshis from the Lightning Network (LN) to the Bitcoin timechain typically involves using swap services. However, there are alternative methods that can be employed to achieve this transfer without relying on such services.

One approach is to close a Lightning channel. When you close a channel, the balance is settled on the Bitcoin blockchain. This process involves broadcasting the final channel state to the Bitcoin network, which then records the transaction on the timechain.

Another method is to use a dual-funded channel, which allows both parties to contribute to the channel's funding transaction. This can facilitate a direct transfer back to the timechain when the channel is closed.

These methods, while effective, require a good understanding of the technical aspects of the Lightning Network and Bitcoin protocol. Users should ensure they are comfortable with the process and potential fees involved.