Yea, I think I figured it out.

If you have coinos.io already go to https://bitcoin-connect.com/ and connect that to coinos.io by pasting your connection string, find it from from coinos.io settings, into the bitcoin connect place.

Then.....I was using alby as extension so I just added a new option(top right )......took me to Choose NWC in Bring your own wallet. And then in the settings for that new NWC in the extension I copied and pasted my npub and nsec from alby.

Seems to work. Not sure if any use to you but maybe helps.

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