Leaving self-hosted Duende: what migrates, and what you stop operating

Duende IdentityServer is a genuinely good piece of software — if you want to own your identity layer end to end, it's the standard in .NET. But "owning it" is the whole cost: you host it, patch it, scale it, and build everything around it — the admin UI, MFA, audit logs, branding, a status page, use