Practical articles on AI, DevOps, Cloud, Linux, and infrastructure engineering.
We replaced three kernel-level monitoring tools with a small set of eBPF programs. What it bought us, what it cost, and where we still use the old stuff.
We removed the corporate VPN, set up workload identity everywhere, and made every service prove who it is on every call. The actual implementation, with what worked and what we abandoned.
How we organize Terraform state across 12 AWS accounts and 40+ services. Backends, locking, partitioning, and the migration we got wrong twice.
We run ~600 GitHub Actions workflow runs per day across 80 repos. The patterns that scale and the ones that hit limits we didn't expect.
I fine-tuned Llama 3 8B on a single 4090 over a weekend for a side project. Here's what worked, what cost more than expected, and what I'd do differently.
A different angle on AWS cost work: the operational discipline that prevents costs from creeping back up after the initial cleanup.
Bash patterns beyond the basics: arrays, traps, process substitution, parameter expansion. The features that earn their place when scripts grow.
We cut our average production image size by 78% with multi-stage builds. The patterns that worked, the ones that didn't, and the production gotchas.
We use Ansible for configuration management on hosts where Terraform stops. The workflow that keeps it tractable and what we wish we'd known about idempotency.
