What steps should I follow to move coins from a single address in an offline descriptor wallet?

Transferring coins from a single address in an offline descriptor wallet involves several steps to ensure the security and success of the transaction. Here’s a comprehensive guide:
Prepare Your Environment:
Ensure your offline environment is secure and free from malware. A clean, air-gapped computer (not connected to the internet) is recommended for handling private keys and signing transactions.
Access Your Offline Descriptor Wallet:
If you haven’t already, set up your offline descriptor wallet. A descriptor wallet is a setup where coins can be managed through “descriptors,” which define a set of addresses with their associated scripts.
Ensure you have access to the wallet’s descriptor that contains the coin’s private key.
Create a New Transaction:
On your online device, use a wallet or software that supports descriptor wallets to create a new transaction. Enter the recipient’s address and the amount you wish to send.
Export Unsigned Transaction:
Export the generated transaction as an unsigned transaction file. This file will need to be moved to your offline device for signing.
Sign the Transaction Offline:
Transfer the unsigned transaction file to your offline device using a secure method like a USB stick.
Open your offline wallet software which supports descriptor-based signing.
Import the unsigned transaction file and use the wallet’s private key to sign the transaction.
Export Signed Transaction:
Once the transaction is signed, export the signed transaction file from your offline device.
Broadcast the Transaction:
Transfer the signed transaction file back to your online device using a secure method.
Use your online wallet or a suitable transaction broadcasting tool to broadcast the signed transaction to the network.
Verify the Transaction:
After broadcasting, monitor the blockchain explorer or your online wallet to ensure the transaction is confirmed. This may take some time, depending on network conditions and transaction fees.

Throughout this process, maintaining security and privacy is paramount. Ensure that sensitive information (like private keys) is never exposed to an internet-connected device.