> Infra here being fixed IP, mTLS reverse proxy, k3s/container, S3 etc. Basic building blocks like that - store data, run app & safe gateway to access it

Or a regularly backed up raspberry pi running services in lightweight docker containers exposed over tailscale.

I like the simonw tools approach: https://tools.simonwillison.net/

Basically you have a repo with web-based tools and a way to deploy them on change. Then you can just quickly whip up (or ask an LLM to do so) any simple tool and it's live within minutes.