So I was thinking to use Authentik or Authelia (OAuth 2.0) as self-hosted service to be the main SSO for various other apps… but then I thought since I already have MS Azure AD (newly known As MS Entra ID), would I able to use that instead… any proper guides on how to use that with other open source projects such as Guacamole, Home Assistant, etc…?
Worth mentioning that I have MS 365 Basic/Standard subscription from GoDaddy (not premium MS 365 subscription), so no MS Intune service and the Azure AD is not on-premise (all online via entra.microsoft.com).
Entra supports either OAuth2 or SAML. You could use it with any app that supports those methods by creating your app registration in entra, adding the site URL to the app your authing, and then putting the client id, secret and tenant in your self hosted apps config.
You could also just use it as an identity source in authentik or authelia.