Yafes | AppSec Engineer
Security in practice.

Latest

28
Oct
Log in with a touch

Log in with a touch

One touch of a fingerprint now opens every door on my self-hosted platform: the git server, every git push,
7 min read
27
Oct
Building a Signed Software Supply Chain for a One-Person SaaS

Building a Signed Software Supply Chain for a One-Person SaaS

Every commit to my SaaS is now signed by a short-lived certificate, every release is signed by the CI
8 min read
11
Oct
Configuration Isn't Proof: Five Findings From Auditing My Own Infrastructure

Configuration Isn't Proof: Five Findings From Auditing My Own Infrastructure

Before building a self-hosted secure development platform, I audited the machines it would run on. Five findings, the fixes, and the pattern behind them.
6 min read
30
Sep
Do I Really Need a DGX Spark? Running Local AI for AppSec on a Base M5 MacBook Pro with 32GB

Do I Really Need a DGX Spark? Running Local AI for AppSec on a Base M5 MacBook Pro with 32GB

A base M5 MacBook Pro ran Qwen3.6 35B at 45–57 tokens/sec, fully on its GPU. Here's why I didn't need a DGX Spark to build my AI AppSec pipeline locally.
9 min read
11
Aug
How to Stick to 5GHz Wi-Fi on a Home Server (When a Secure Tunnel Is Routing You Through the Wrong Gateway)

How to Stick to 5GHz Wi-Fi on a Home Server (When a Secure Tunnel Is Routing You Through the Wrong Gateway)

I run a small self-hosted setup at home: a Linux server on my local network, connected to a cloud
4 min read
09
Aug
Building an AI-native security pipeline for Stokum.NET

Building an AI-native security pipeline for Stokum.NET

I wrote before about the zero-trust architecture behind Stokum, encrypted tunnels, JWT auth, row-level tenant isolation, no implicit
2 min read
20
Jan
StokumNET Threat Model: A Practical STRIDE Analysis

StokumNET Threat Model: A Practical STRIDE Analysis

In an ideal world, threat modeling happens before the first line of code. You identify assets, map trust boundaries, enumerate
11 min read
18
Jan
StokumNET Security Roadmap: From Foundation to Enterprise-Grade

StokumNET Security Roadmap: From Foundation to Enterprise-Grade

Building a secure multi-tenant platform is never "done." The architecture I described in my previous post established
7 min read
18
Jan
StokumNET/Architecture: Building a Secure Multi-Tenant Platform

StokumNET/Architecture: Building a Secure Multi-Tenant Platform

"Stokum" means "my inventory" in Turkish. "Net" means "clear" or "exact.
7 min read
16
Jan
Photo by Yafes.

Why I'm Building StokumNET (And Launching This Blog)

After seven years as a Staff Application Security Engineer at SugarCRM, I stepped away from corporate life to return to
3 min read