Oidc is easier to implement than SAML. Oauth2 is for authorization (vs authentication). Its used along with Oidc, but Oidc is the authentication piece (the SSO part)

I say Oidc is easier to implement because it is json based (jwt token) vs SAML which uses XML, which is very verbose and has stuff like namespaces and xsd’s which can make XML a pain to work with.

I’d suggest you stick to keycloak and set up Oidc. This is a good tutorial https://medium.com/@buffetbenjamin/keycloak-essentials-openid-connect-c7fa87d3129d

Edit: take a look at authentik too. I’ve always used keycloak but authentik looks interesting

You can ask google who Reddit user x is and it gives you a summary

At least Linux runs well on old hardware (and still supports)

Whenever someone at work says “ChatGPT says this” or “Claude says this” or “I asked Gemini and…” whatever they say after that point is just static and I never take them seriously as a person again.