Step one is for you to let me know the npub you want to use for the test. You are welcome to use your real Nostr profile but currently the tool requires you to pass your raw nsec on the command line which isn't best practice as anyone with access to your file system could steal it from your shell history. Once I know which key you want to use I will shard my own test key and send it to both via encrypted Nostr events.

Step two would be to download the tool and get it working. It's a python script that you should be able to get by running a series of commands like this:

git clone git@github.com:mplorentz/social-key-backup.git

cd social-key-backup

pip install -r requirements.txt

python skb.py --help

If that works you should see an explanation of the tool printed to the command line. If it doesn't work just let me know and we'll figure out what's wrong!

After I've sent the shards to you there will be a command I'll ask you to run to help me reassemble the key!