Modern IT infrastructure, in five pillars
The framework I use to keep infrastructure sane: five pillars on four foundations, every component a CI wired to the rest.
Notebook
Software × Finance
What delivers the function — apps, APIs, SaaS, platform services. · Size it — cost, budget, right-sizing, run-rate.
Opinion notes
Build like you'll have to leave
Closed software earns its place, but engineer the exit. The line that matters: a moderate lock-in you can leave, a super lock-in that owns you.
Idea notes
Could open-source IAM replace Active Directory and Entra ID?
Where midPoint plus Authentik can replace the Microsoft identity stack in a hybrid Windows/Linux shop. And where it can't. A thought experiment, not a build.