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Papers

Felix Hartmann

Atlas: One Workspace, Fully Yours

Tuesday, June 2, 2026

Too many systems. Not enough places to document them.

I write about everything that is worth writing about. Here is how I organize it.

Practical engineering perspectives on systems, delivery, and the habits that make reliable work possible.

Technical investigations, benchmarks, and evidence-backed explorations of engineering trade-offs.

Inside the architecture, decisions, and delivery outcomes behind complex engineering work.

Clear, reproducible walkthroughs for building, operating, and improving production systems.

Short technical observations, patterns, and lessons collected from hands-on work.

Field notes from ongoing experiments, infrastructure work, and systems under construction.

"Ren's Publications started as a place for me to document my activities. I needed somewhere to put everything I could not stop doing."
"Ren's Publications started as a place for me to document my activities. I needed somewhere to put everything I could not stop doing."
Curiosity does not fit into a category. We stopped trying to make it.

Shirasaka Ren, Author

Too many systems. Not enough places to document them.

One fresh piece from every category. Updated as we publish. Start anywhere.

Articles

Yara Amin

Thursday, September 10, 2026

Menulis Skripsi FILKOM UB dengan Skill yang Dapat Diaudit

Articles

Yara Amin

Thursday, September 10, 2026

Menulis Skripsi FILKOM UB dengan Skill yang Dapat Diaudit

Papers

Yara Amin

Wednesday, September 9, 2026

Atlas: One Workspace, Fully Yours

Papers

Yara Amin

Wednesday, September 9, 2026

Atlas: One Workspace, Fully Yours

Laptop-based engineering workspace

Articles

Yara Amin

Thursday, August 20, 2026

Why I Prefer GitOps for Small Teams

A practical argument for GitOps when team size, review capacity, and operational time are limited.

Laptop-based engineering workspace

Articles

Yara Amin

Thursday, August 20, 2026

Why I Prefer GitOps for Small Teams

A practical argument for GitOps when team size, review capacity, and operational time are limited.

Engineer working at a laptop

Papers

Yara Amin

Wednesday, August 19, 2026

Evaluating Kubernetes Autoscaling Strategies Under Bursty Loads

A small benchmark comparing HPA signals, queue depth, and stabilization windows under controlled traffic bursts.

Engineer working at a laptop

Papers

Yara Amin

Wednesday, August 19, 2026

Evaluating Kubernetes Autoscaling Strategies Under Bursty Loads

A small benchmark comparing HPA signals, queue depth, and stabilization windows under controlled traffic bursts.

Software development monitor and keyboard

Case Studies

Yara Amin

Tuesday, August 18, 2026

Building a Multi-Region Game Platform Across Three Continents

How we designed latency budgets, failover drills, and release coordination for a global game platform.

Software development monitor and keyboard

Case Studies

Yara Amin

Tuesday, August 18, 2026

Building a Multi-Region Game Platform Across Three Continents

How we designed latency budgets, failover drills, and release coordination for a global game platform.

Development workstation screen

Guides

Yara Amin

Monday, August 17, 2026

Setting Up Argo CD With Terraform From Scratch

A reproducible setup for bootstrapping Argo CD, repository access, and application delivery through Terraform.

Development workstation screen

Guides

Yara Amin

Monday, August 17, 2026

Setting Up Argo CD With Terraform From Scratch

A reproducible setup for bootstrapping Argo CD, repository access, and application delivery through Terraform.

The Ren's Publications

Written for people who still read properly.

We send when we have something worth saying. Which is often enough to be worth signing up for.