Platform engineering, Kubernetes, AWS, and cloud infrastructure articles by Marcin Jasion
How to test AI-generated code: a differential-testing pattern over MCP. One agent built my Polish tax calculator and exposed it over MCP. A second Claude Code agent, with no shared context, audited the math against raw broker data and found real bugs. This is what harness engineering looks like in practice.
After building with Vercel and Supabase, I switched to Cloudflare and TanStack. Here's why - and what I gained.
Learn how to implement a leader election mechanism in Golang using the Kubernetes API, leveraging lease locks and distributed coordination to ensure reliable task execution in distributed systems.
Site-to-Site VPN allows connecting local network with AWS VPC. This blog is a step-by-step instruction to establish connection
Speed up terraform plan and apply 4x in HCP Terraform. Configure TFE_PARALLELISM or per-stage TF_CLI_ARGS_plan/apply via workspace variable sets.
Enable TF_LOG=TRACE/DEBUG in HCP Terraform and Terraform Enterprise remote runs via workspace variables. Includes local execution fallback for fast iteration.
Fix Istio 502 UPE upstream_reset_before_response_started{protocol_error} errors. Real debug walkthrough using Envoy logs, Wireshark, and ksniff.
Step by step guide to deploy first contract on Ethereum blockchain
You can label emails by headers in Gmail. To do this you have to create a script that periodically scans for new emails in your inbox. To demonstrate it I will use Gitlab notifications and we will add labels to messages basing on their headers