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The Playbook's 2025 Year In Review
The most popular and most important articles on The Payments Engineer Playbook in 2025.
Dec 17
•
Alvaro Duran
Raft Consensus in 2,000 words
Understanding the Understandable Consensus Protocol
Nov 12
•
Alvaro Duran
2
From Stock Markets To Ledgers, Part I: Fairness
Why fairness, not speed, is the ultimate validation of stock markets
Oct 29
•
Alvaro Duran
1
2
Why AI Commerce Isn't Going Anywhere
Human Not Present payments are technically possible, but socially unacceptable
Oct 15
•
Alvaro Duran
2
How To Review Code That Deals With Money
You're probably focusing on the wrong things. It doesn't look as good as you think.
Sep 17
•
Alvaro Duran
3
Richard Pryor Stole a lot of Half Cents and Bought a Ferrari
Why Floats and Decimals as Money Make Illegal States Representable
Aug 27
•
Alvaro Duran
4
2
2
The Playbook's 2025 Beach Reads
I love reading on the beach.
Aug 13
•
Alvaro Duran
2
Database Migration Wartime Stories
And some PostgreSQL not-so-well-known lock workarounds
Jul 23
•
Alvaro Duran
1
The Joy of Being On Call For Payment Systems
How to be at ease when every second counts
Jul 16
•
Alvaro Duran
1
Code-First Reliability in Payment Systems
Building Payments to fail as soon as possible
Jun 25
•
Alvaro Duran
4
2
1
Stripe Deploys 1,000 Times A Day And You Don't Deploy On Fridays
If you don't know, the thing to do is not to get scared, but to learn
Jun 4
•
Alvaro Duran
2
1
The Technical Face of Payments as a Service
How can technology make payment processing easier? Let me give you 4 ways, and a litmus test.
May 21
•
Alvaro Duran
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