Keycloak to SharePoint 2019 User Authentication -- 2

Job ID: 38131067

Budget: $30 – $250 USD

I've got my domains using ADFS to Keycloak as an IDP/broker. I now need help/instructions on how to get my SharePoint 2019 server (on-prem) to allow those brokered users to authenticate to SharePoint 2019. I know we have to set up SP 2019 as a client in Keycloak, but I need instructions.
1. How to setup SP 2019 as a client on KC.
2. Setup sharepoint to allow their party idp.

I just need instructions.
Related categories: Sharepoint Microsoft Windows Server Keycloak