Also a quick FYI maybe change the key add command on the webpage to curl -s https://sineware.ca/static/swadmin-632219ce.rsa.pub | sudo tee /etc/apk/keys/swadmin-632219ce.rsa.pub
curl -s https://sineware.ca/static/swadmin-632219ce.rsa.pub | sudo tee /etc/apk/keys/swadmin-632219ce.rsa.pub
(#general from "Sineware")