Very similar tech stack here, with all the same motivations. Biggest differences are I'm using RDS for the database and have a slightly different approach for serverless compute. I started out with Lambda, but the cold start times were bugging me so I moved production hosting to App Runner, which is the next best thing (eliminates cold start without breaking the wallet). Kept staging environment on Lambda. Also using the "fat lambda" approach with ASP.NET apps, so no lock-in here. Spending abou...