Hi! Any recommendations on how/where to run things like EF Core database migrations using Pulumi? How would I retrieve connection strings and pass them over to another CLI tool?

You could export the connection strings from your stack and then retrieve them from elsewhere with a

pulumi stack output bla

we use an msbuild task to generate an idempotent migration sql and then apply it using this dynamic provider. works well for us.

The issue is dynamic providers are not supported for .net yet.