// Open Source
Magatama Security Architecture Open Source TypeScript Fastify Monorepo Platform Engineering Decision Log

Building Magatama: The Architecture Decisions That Hurt

Magatama is a unified security platform with six pillars. The architecture looks clean now. Three decisions made it painful to get here — two I'd make again, one I'd reverse.

Rene Fichtmueller / 2026-05-28 / ~2 min read min read
ADHD Diary No-Travel-Day Magatama Building Neurodivergent Security Personal Vision Open Source

ADHD Diary #005: When the Vision Finally Clicks

No-Travel-Day. The week Magatama stopped being a collection of security tools and became a platform. What happens inside an ADHD brain when 18 months of fragmented work suddenly makes sense.

Rene Fichtmueller / 2026-05-26 / ~2 min read min read
AI Security Open Source ShieldX ShieldY LLM Prompt Injection Security MITRE ATLAS Red Team TypeScript

The Open Source AI Security Stack That Actually Exists

Vendor solutions for LLM security cost $50,000/year and scan for yesterday's attacks. The open source stack is fragmented but works. Here's what actually exists — and what's still missing.

Rene Fichtmueller / 2026-05-23 / ~2 min read min read
MCP Security LLM AI Security Prompt Injection ShieldX MITRE ATLAS Tool Poisoning Claude Open Source

MCP Security: The Attack Surface Nobody Is Auditing

Model Context Protocol gives AI systems tool access. It also creates a new attack surface: tool poisoning, indirect prompt injection, and privilege escalation through tool chaining. Almost nobody is scanning for it.

Rene Fichtmueller / 2026-05-19 / ~2 min read min read
Open Source Apache 2.0 Licensing Software Engineering Legal Security Patents Developer Tools Community

Why I Licensed Everything Apache 2.0

License choice is a product decision, not just a legal formality. Apache 2.0 over MIT isn't paranoia — it's the patent protection clause, which matters specifically for security software.

Rene Fichtmueller / 2026-05-15 / ~2 min read min read
Build in Public Open Source Software Engineering Personal Developer Tools GitHub Transparency Community

Six Weeks of Building in Public: What Actually Happened

I started publishing everything I built six weeks ago. Eight repositories, zero marketing budget, one unexpected outcome: writing about the work changed how I do the work.

Rene Fichtmueller / 2026-05-13 / ~2 min read min read
Transceiver Compatibility Vendor Lock MSA Optical Networking TCO Network Engineering Cisco Juniper Open Source

Third-Party Optics: The Real Risk vs the Vendor Story

Cisco says third-party optics void your support contract. The MSA says otherwise. Here's what the standards actually guarantee, what vendor lock costs at scale, and how to run the risk-adjusted calculation.

Rene Fichtmueller / 2026-05-09 / ~2 min read min read
Magatama Security Platform Open Source Origin Story AppSec Cloud Security AI Security LLM Defense ShieldX Compliance NOG Build in Public TypeScript

MAGATAMA 勾玉: Building a Security System That Learns From Every Fix

MAGATAMA is evolving from a security dashboard into a system that detects, prioritizes, remediates, verifies and learns from real incidents.

Rene Fichtmueller / 2026-04-21 / ~3 min read min read
Open Source LLM Security TypeScript AI Defense ShieldX AI Security Prompt Injection Defense Self-Evolving Systems

ShieldX v0.5.0 — Self-Evolving LLM Prompt Injection Defense (Open Source)

Learn about ShieldX v0.5.0 - the cutting-edge open-source solution for defending against prompt injection attacks on large language models.

Rene Fichtmueller / 2026-04-07 / ~4 min read min read
ShieldX LLM Security Open Source Red Team Prompt Injection AI Security Penetration Testing Detection Rate TypeScript MITRE ATLAS

ShieldX v0.4: Red Team Results — 386 Tests, 99.6% Detection, Zero Failures

We red-teamed ShieldX v0.4 with 386 automated and manual attack scenarios across 13 attack categories. The result: 99.6% attack detection, zero test failures, and 100% kill chain coverage.

Rene Fichtmueller / 2026-04-06 / ~3 min read min read