Namecheap domain (cheaper than $2).

Go to your nc dashboard and activate dynamic dns

Go to your linux machine install ddclient

Configure it with your nc token and install it as a service

Install apache2 on your machine

Enable mod_headers to accept cors

Install certbot (let's encrypt) and run it to automatic https your domain

Go to your webserver dir, create a dir named .well-known

Touch a file named nostr.json

Write on it based on nips.be/5 your display name attached to your 32 hex-code key.