# Observability
All Observability notes →3 — Telemetry Pipelines
Covers building the reusable pipeline infrastructure (Collector fleets, routing config) that self-service onboarding depends on.
5 — GitOps
Covers deploying observability-as-code configuration through the same GitOps reconciliation loop as application deployments.
6 — Terraform
Covers managing observability backend resources (data sources, alert rules, access policies) as Terraform-managed infrastructure.
7 — Platform APIs
Covers designing the API surface a platform team exposes so other teams can provision telemetry resources programmatically.
8 — Multi Region Design
Covers designing an observability platform's own multi-region topology so it does not share a single point of failure with the workloads it observes.
# Sre
All Sre notes →1 — Platform Engineering Fundamentals
Building the internal platform other teams build on, which changes the job from operating one service to operating the thing every service depends on.
2 — Internal Developer Platforms
The self-service layer that turns 'file a ticket and wait' into 'click a button and get a compliant environment' — and the golden-path opinions that make that safe.
3 — Self-Service Infrastructure
Giving product teams the ability to provision infrastructure themselves without giving up the guardrails that keep that infrastructure compliant and reliable.
4 — Golden Paths
The paved, supported way to build a service on the platform — and why an easy golden path is what makes the unsupported path rare instead of forbidden.
5 — Kubernetes Platforms
Turning raw Kubernetes into a platform product — multi-tenancy, policy enforcement, and the abstractions that hide cluster complexity from application teams.
6 — Developer Experience
Treating the platform's internal users as real users with real UX expectations, because a platform nobody wants to use gets worked around, not adopted.
7 — Multi-Tenant Platforms
Isolating tenants sharing the same underlying infrastructure — noisy-neighbor prevention, quota enforcement, and the blast-radius containment that makes sharing safe.
8 — Platform Reliability
Why the platform's own SLOs matter more than any single service's — a platform outage takes down every team building on it at once.