Video tutorial is here.
If you want to publish Apple Photos online or share them with everyone publicly do following steps:
Install alto.computer macOS app.
Follow alto.computer setup guide for initial use.
Go to Apple Photos and select album.
Press "CMD+SHIFT+P" or click "public photos" button.
Your published Apple Photos is live now at alto.so.
If you never publish Apple Photos online using alto you need:
Install alto macOS app.
Sign In using your Apple ID in macOS app.
Sign In using your Apple ID in the web app here. Finish setup and choose your username.
Once you do those steps you can publish your Apple Notes from your macOS to the alto.so.