# Authentication · Tech watch

[Canonical source](<https://sebastien.rigaux.be/en/tech-watch/tags/authentication>)

Verifying user or service identities and managing sessions.

## [A Next.js SaaS starter with authentication and multi-tenancy](<https://sebastien.rigaux.be/en/tech-watch/links/a-next-js-saas-starter-with-authentication-and-multi-tenancy>)

This boilerplate combines Next.js, Tailwind and shadcn/ui with authentication, roles and team support. Database, internationalization and testing foundations help bootstrap a SaaS application.

2025-07-19 · [Markdown](<https://sebastien.rigaux.be/en/tech-watch/links/a-next-js-saas-starter-with-authentication-and-multi-tenancy.md>) · [Original resource](<https://github.com/ixartz/SaaS-Boilerplate>)

## [Next Safe Action: validate Server Actions with middleware](<https://sebastien.rigaux.be/en/tech-watch/links/next-safe-action-validate-server-actions-with-middleware>)

The library adds typed validation and middleware to Next.js Server Actions. Its example combines an input schema with authentication context to structure server operations.

2025-02-12 · [Markdown](<https://sebastien.rigaux.be/en/tech-watch/links/next-safe-action-validate-server-actions-with-middleware.md>) · [Original resource](<https://next-safe-action.dev/>)

## [Dex: federate identity providers through OpenID Connect](<https://sebastien.rigaux.be/en/tech-watch/links/dex-federate-identity-providers-through-openid-connect>)

Dex connects applications to identity providers such as LDAP, SAML and GitHub. Applications use a common OpenID Connect interface instead of handling each backend protocol separately.

2023-09-07 · [Markdown](<https://sebastien.rigaux.be/en/tech-watch/links/dex-federate-identity-providers-through-openid-connect.md>) · [Original resource](<https://github.com/dexidp/dex>)

## [Azure Chat: deploy a private conversational interface](<https://sebastien.rigaux.be/en/tech-watch/links/azure-chat-deploy-a-private-conversational-interface>)

Microsoft’s accelerator provides a starting point for deploying chat in an Azure subscription. It documents identity providers, extensions and conversations grounded in files.

2023-08-14 · [Markdown](<https://sebastien.rigaux.be/en/tech-watch/links/azure-chat-deploy-a-private-conversational-interface.md>) · [Original resource](<https://github.com/microsoft/azurechat>)

## [Gmail adds a blue badge for verified senders](<https://sebastien.rigaux.be/en/tech-watch/links/gmail-adds-a-blue-badge-for-verified-senders>)

The article covers Gmail’s blue checkmark for organizations already using BIMI. The badge is intended to help distinguish verified senders from messages impersonating them.

2023-05-05 · [Markdown](<https://sebastien.rigaux.be/en/tech-watch/links/gmail-adds-a-blue-badge-for-verified-senders.md>) · [Original resource](<https://techcrunch.com/2023/05/03/blue-verified-checkmarks-are-coming-to-gmail/>)

## [Model application security flows during architecture design](<https://sebastien.rigaux.be/en/tech-watch/links/model-application-security-flows-during-architecture-design>)

Damien Bod proposes security context models centered on authentication and authorization flows. The diagrams help identify trust boundaries and design mistakes before implementation.

2023-05-02 · [Markdown](<https://sebastien.rigaux.be/en/tech-watch/links/model-application-security-flows-during-architecture-design.md>) · [Original resource](<https://damienbod.com/2023/05/01/application-security-context-models/>)