RBAC and SSO

We already have a small tool developed with a Node.js backend and a Reactjs based frontend. Firebase and MongoDB are being used for storage. We want to add a RBAC mechanism along with a SSO to this application. We want the SSO across the following applications. A cPanel like interface needs to be created wherein when a user logs-in, the RBAC will decide which all applications will be visible to a logged-in user. When a user clicks on a applications' icon, they should be redirected to the appropriate application. The list of applications is as follows: Customer facing SSO (for internal & client use) 1. Zoho Books (Accounting Software) 2. EasyHR (HRMS) 3. Check an Invoice (OCR) 4. Arka Inventory (Inventory Management Software) 5. Compliance Tracker (Excel) 6. Power BI 7. Zoho Desk (Ticketing Tool) 8. Reconcify (Reconciliation) Internal SSO (for internal use) 1. Zoho CRM (CRM) 2. Tally (ERP) 3. EasyHR (HRMS) 4. Scoro (PMS) 5. Power BI (Dashboards) 6. ERPNext (skillset mapping) 7. SharePoint / O365 8. Talentpool 9. CleverStory (CEC) 10. PaperFlite 11. Tracxn 12. RoI Calculator (developed inhouse) 13. Finance Function Benchmarking tool (to be developed inhouse) 14. Net Promoter Score (to be developed inhouse) 15. Fit-o-Meter (to be developed inhouse) 16. CFO Hiring Checklist (to be developed inhouse) More details can be discussed as we discuss.