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Engineering deep dives, building in public, Bitcoin sovereignty, and first-principles thinking.

How I Cut an $80K/Month Observability Bill to $15K

How I Cut an $80K/Month Observability Bill to $15K

Observability cost $80K/month at 1TB/day — $40K Datadog, $40K CloudWatch. A year later at 6× the data, the self-hosted LGTM stack I built still ran $15-18K. The teardown.

observabilitycost-optimizationawslgtmgrafanacase-study
Self-managed Kubernetes vs managed control plane: when it's worth it

Self-managed Kubernetes vs managed control plane: when it's worth it

EKS, GKE and AKS charge ~$73/cluster/month for a control plane you could run yourself for free. Here is what that money actually buys, and when you should pay it.

kubernetesinfrastructureclouddevopscost
Cloud Cost Management: Your Bill Is a Product Metric

Cloud Cost Management: Your Bill Is a Product Metric

Cloud cost management isn't an accounting line at month-end. Treat the bill as a product metric — cost per request, per tenant — beside latency.

finopscloud-costunit-economicsengineering-culture
The S3 Cost Optimization Playbook

The S3 Cost Optimization Playbook

S3 cost optimization, step by step: storage classes, lifecycle policies, Intelligent-Tiering, multipart cleanup, retrieval fees, and the free VPC endpoint.

awss3cost-optimizationcloud-infrastructure
AWS Savings Plans vs Reserved Instances: Which to Buy

AWS Savings Plans vs Reserved Instances: Which to Buy

A decision guide to AWS Savings Plans vs Reserved Instances — when each wins, what to actually buy, and what the December 2025 Database Savings Plans launch changes.

awscost-optimizationsavings-plansreserved-instances
AWS NAT Gateway Pricing: The Hidden Tax, and How to Kill It

AWS NAT Gateway Pricing: The Hidden Tax, and How to Kill It

AWS NAT Gateway pricing charges you twice — to exist and to move your bytes. How to spot the cost on your bill and the fixes that cut it to near zero.

awscost-optimizationvpcnetworking
AWS Cost Optimization: What I'd Audit First on a $50K Bill

AWS Cost Optimization: What I'd Audit First on a $50K Bill

A practitioner's cloud cost optimization audit for AWS, in order: data transfer, rightsizing, commitments, storage. Where the first 20-30% hides on a $50K bill.

awscost-optimizationfinopscloud-infrastructure
Lean Infrastructure: A Cloud Cost Optimization Method

Lean Infrastructure: A Cloud Cost Optimization Method

Cloud cost optimization in four decisions: cut the waste, own past your break-even, observe cheaply, and don't over-staff. The whole method, with the receipts.

infrastructurecost-optimizationself-hostingfinopsphilosophy
The Datadog Alternative That Cut an $18K Bill 85%

The Datadog Alternative That Cut an $18K Bill 85%

The Datadog alternative that ran 6 TB/day of observability for ~$15-18K/mo vs Datadog's ~$120K. How the bill ballooned, what we changed, and the 85% cut.

observabilitycost-optimizationgrafanalgtminfrastructurecase-study
Building My Own Cloud

Building My Own Cloud

Six dedicated servers in a German data centre, and a multi-tenant Kubernetes platform on top of them. Most of what I run my life on now lives there. This is an honest account of why I built it, what it actually costs, and the situations in which you absolutely should not do the same.

kubernetesself-hostinginfrastructureplatform-engineering
What My Kids Need Before They Need Anything Else

What My Kids Need Before They Need Anything Else

I have two children. They will grow up in a world where Bitcoin is part of how families save, spend, and pass on wealth. Software good enough for non-technical families to do this safely does not yet exist. So I am building it — in public, decision by decision, with the next generation as the only deadline that matters.

bitcoinfamilyself-custodyproduct-designbuilding-in-public
Why I Rewrote Four Services in Go

Why I Rewrote Four Services in Go

Python on Knative was costing me 5–7 seconds every cold start. On a small Kubernetes cluster, that latency was the difference between a usable AI agent and a broken one. So I rewrote four services in Go on three weekends. Here are the measured numbers, the unexpected wins, the unexpected pains, and when you absolutely should not do the same.

gopythonperformancekubernetesknative
AWS Cost Optimization: The Complete Guide

AWS Cost Optimization: The Complete Guide

Everything you need to know about reducing your AWS bill by 20-40% — from quick wins to architectural changes.

awscost-optimizationfinopsguide
How We Avoided $120K/Month in Observability Costs

How We Avoided $120K/Month in Observability Costs

Datadog was costing us $40K/month at 1 TB/day. We were growing to 6 TB. Instead of scaling the bill, we built our own platform that ran 8× cheaper at production scale.

awscost-optimizationobservabilitygrafanalgtmcase-study

Hello World

Welcome to my personal blog. Engineering deep dives, building in public, Bitcoin sovereignty, and first-principles thinking.

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