# X3m Industries — Full LLM Context (llms-full.txt)

> Domain: https://www.x3m.industries
> Owner / Principal Architect: Steven Ceuppens (https://github.com/x3m-industries)
> LinkedIn: https://www.linkedin.com/in/stevenceuppens
> Company GitHub: https://github.com/x3m-industries
> Company LinkedIn: https://www.linkedin.com/company/x3m-industries/
> Email: info@x3m.industries

## Firm Overview
Boutique software engineering and consulting firm led by Steven Ceuppens. Specialized in mission-critical software architecture, in-house products, systems engineering, and full-stack cloud platforms.

Unlike traditional consulting agencies that employ layers of junior developers, X3m Industries operates with direct, principal-level execution led by Steven Ceuppens. The firm specializes in two symbiotic activities:
1. Building proprietary in-house digital products, developer tools, and open-source diagnostic systems.
2. Providing high-leverage architectural advisory, performance tuning, and systems engineering to CTOs, VPs of Engineering, and Software Directors.

## Key Practice Areas
1. **Software & Systems Architecture** (Architecture & Scalability)
   Comprehensive architectural reviews, system redesigns, and scalability assessments for mission-critical software. We eliminate architectural bottlenecks and ensure high reliability under extreme loads.
   Capabilities:
  * Architecture audits & technical due diligence
  * Monorepo & multi-package system architecture
  * Event-driven & distributed messaging design
  * Migration strategies from legacy monoliths

2. **Linux Kernel & Systems Engineering** (Low-Level & OS)
   Rare low-level systems expertise spanning the Linux graphics stack, DRM/KMS, Wayland compositors, embedded environments, and hardware integration for specialized devices and appliances.
   Capabilities:
  * Wayland compositor & DRM/KMS debugging
  * Linux kernel subsystem tracing & diagnostics
  * Native systems programming in Rust & C/Go
  * High-performance IPC & embedded device stacks

3. **High-Throughput APIs & Cloud Infrastructure** (Distributed Backends)
   Engineering robust, high-performance backends and real-time APIs built with Go and Rust. Protocol Buffers, ConnectRPC, and type-safe contracts deployed natively on GCP and Vercel.
   Capabilities:
  * ConnectRPC, gRPC & Protobuf protocol design
  * CloudEvents & pub/sub streaming architectures
  * GCP serverless & containerized deployments
  * Database modeling & optimization (MongoDB, Redis)

4. **Fine-Grained AuthZ & Identity Systems** (Auth & Identity)
   Enterprise-grade authentication, SSO, and relationship-based access control (ReBAC). Implementing Zanzibar-style authorization with SpiceDB for complex multi-tenant platforms.
   Capabilities:
  * SpiceDB & Google Zanzibar authorization schemas
  * OAuth 2.0 / OIDC & Better-Auth integration
  * Multi-tenant SSO, SAML & role delegation
  * Security posture & zero-trust access audits

5. **Fractional CTO & Technical Leadership** (Strategic Advisory)
   High-leverage advisory for executive leadership. We help CTOs and Directors evaluate engineering strategy, set developer standards, establish monorepos, and accelerate execution without hiring bloat.
   Capabilities:
  * Engineering strategy & roadmap alignment
  * Monorepo architecture (Nx, Bun workspaces)
  * Hiring bar evaluation & engineering team enablement
  * Vendor & technology selection due diligence

## Track Record & Open Source
### COSMIC Desktop Subsystems
- **Organization / Entity**: System76 / Pop!_OS
- **Engagement Model**: Upstream Open Source
- **Engineering Domain**: Desktop Compositor & D-Bus
- **Impact / Verification**: Multiple Merged Upstream PRs in Rust
- **Technologies**: Rust, D-Bus, BlueZ, Wayland, Linux Subsystems
- **Description**: Upstream contributions in Rust to the next-generation COSMIC desktop environment and D-Bus bindings. Implemented BlueZ agent message forwarding and passkey/PIN dialog interaction flows for Wayland-native Bluetooth keyboard pairing.
- **Repository / Link**: https://github.com/pop-os/cosmic-settings/pull/2024
- **Tracked Pull Requests**:
  * [PR #2024: fix(bluetooth): add passkey/PIN display dialogs for keyboard pairing](https://github.com/pop-os/cosmic-settings/pull/2024) (merged)
  * [PR #32: fix(bluez): forward display_passkey, display_pin_code, and request_authorization agent messages](https://github.com/pop-os/dbus-settings-bindings/pull/32) (merged)
  * [PR #2036: fix: resolve compiler warnings about unused variables and imports](https://github.com/pop-os/cosmic-settings/pull/2036) (open)

### Cilium eBPF Cloud Networking
- **Organization / Entity**: Cilium / CNCF
- **Engagement Model**: Upstream Open Source
- **Engineering Domain**: Kernel eBPF & Observability
- **Impact / Verification**: 8+ Merged Upstream PRs across Daemon & Telemetry
- **Technologies**: Go, eBPF, Linux Kernel, Kubernetes, Telemetry
- **Description**: Upstream contributions in Go to the Cilium kernel-level networking, security, and observability engine. Enhanced bugtool diagnostics, identity listing introspection, and daemon monitoring telemetry.
- **Repository / Link**: https://github.com/cilium/cilium/pull/4264
- **Tracked Pull Requests**:
  * [PR #4264: bugtool: make archive output configurable](https://github.com/cilium/cilium/pull/4264) (merged)
  * [PR #4259: Fix: cilium monitor allows invalid arguments](https://github.com/cilium/cilium/pull/4259) (merged)
  * [PR #4252: Split debuginfo into separate files](https://github.com/cilium/cilium/pull/4252) (merged)
  * [PR #4250: Add "docker info" output to bugtool](https://github.com/cilium/cilium/pull/4250) (merged)
  * [PR #4243: Add "cilium identity list" output to bugtool](https://github.com/cilium/cilium/pull/4243) (merged)
  * [PR #919: cilium: Change Consumable LabelList to LabelArray](https://github.com/cilium/cilium/pull/919) (merged)

### Payload CMS MCP Operations
- **Organization / Entity**: PayloadCMS
- **Engagement Model**: Upstream Open Source
- **Engineering Domain**: Agentic AI Protocol (MCP)
- **Impact / Verification**: Merged Upstream PR for Agentic AI Operations
- **Technologies**: Model Context Protocol, TypeScript, Node.js, Agentic AI
- **Description**: Upstream contribution to the official Payload CMS Model Context Protocol (MCP) plugin. Implemented full multilingual localization support and singleton globals handling for autonomous AI agents.
- **Repository / Link**: https://github.com/payloadcms/payload/pull/14334
- **Tracked Pull Requests**:
  * [PR #14334: feat(plugin-mcp): add localization support to MCP resource operations](https://github.com/payloadcms/payload/pull/14334) (merged)
  * [PR #14343: feat: add globals support to MCP resource operations](https://github.com/payloadcms/payload/pull/14343) (closed)

### Antigravity Linux Distribution Pipeline
- **Organization / Entity**: X3m Open Source
- **Engagement Model**: X3m Open Source
- **Engineering Domain**: Native Packaging & Package Mirrors
- **Impact / Verification**: Automated Daily CI/CD & GPG-Signed Mirror
- **Technologies**: RPM / DNF, APT / DEB, GPG Signing, FreeDesktop Specs, GitHub Actions, Google Antigravity
- **Description**: Automated, cryptographically GPG-signed packaging pipeline and Linux distribution mirrors (DNF/RPM and APT/DEB) for Google's Antigravity AI IDE and agent runtime across x86_64 and aarch64, featuring FreeDesktop integration and OAuth URL protocol handlers.
- **Repository / Link**: https://github.com/x3m-industries/antigravity-packages

### ImgForge Media Engine
- **Organization / Entity**: ImgForger
- **Engagement Model**: Upstream Open Source
- **Engineering Domain**: High-Throughput Image Encoding
- **Impact / Verification**: 3 Merged Upstream PRs in Rust & libvips
- **Technologies**: Rust, libvips, WebP, Colour Spaces, Image Processing
- **Description**: Performance and encoding contributions to the ImgForge image microservice in Rust and libvips. Restored cache colourspace integrity in watermark overlays, added WebP save suffix encoders, and source format fallbacks.
- **Repository / Link**: https://github.com/ImgForger/imgforge/pull/48
- **Tracked Pull Requests**:
  * [PR #48: Fix file-based watermark Composite2Error by restoring colourspace of prepared cache](https://github.com/ImgForger/imgforge/pull/48) (merged)
  * [PR #49: Apply quality and encoder options to WebP saves via save suffix](https://github.com/ImgForger/imgforge/pull/49) (merged)
  * [PR #50: Default output format to source image format with IMGFORGE_DEFAULT_FORMAT override](https://github.com/ImgForger/imgforge/pull/50) (merged)

### Education Academy Platform
- **Organization / Entity**: Education Academy BV
- **Engagement Model**: Commercial Delivery
- **Engineering Domain**: Course Commerce & VLAIO Subsidies
- **Impact / Verification**: Live Production Platform with Government Subsidies & Mollie
- **Technologies**: Next.js, TypeScript, Mollie Payments, VLAIO Subsidies, Financial Workflows, O(N) Traversal
- **Description**: High-conversion digital education and course commerce platform. Engineered complex accreditation logic (Pro-Q-Kine), financial checkout and automated payment workflows via Mollie, Flemish Government VLAIO KMO-Portefeuille subsidy compliance, and O(N) optimized real-time catalog filtering.
- **Repository / Link**: https://www.educationacademy.be/

### Praktijk De Puzzel Platform
- **Organization / Entity**: Praktijk De Puzzel Retie
- **Engagement Model**: Commercial Delivery
- **Engineering Domain**: Deterministic Web & Accessibility
- **Impact / Verification**: 100/100 Lighthouse & WCAG AA Conformance
- **Technologies**: Next.js, WCAG AA Conformance, JSON-LD Graphs, Lighthouse 100, Tailwind CSS
- **Description**: Engineered a deterministic, ultra-fast healthcare practice architecture achieving perfect 100/100 Google Lighthouse scores across all categories, strict WCAG AA/AAA keyboard and portal accessibility, and rich JSON-LD semantic entity SEO graphs.
- **Repository / Link**: https://www.depuzzel-retie.be/

### hybrid-gpu-wayland-freeze
- **Organization / Entity**: X3m Open Source
- **Engagement Model**: X3m Open Source
- **Engineering Domain**: DRM/KMS Display Lockup Diagnostics
- **Impact / Verification**: Reproducible Diagnostic Suite & Kernel Telemetry
- **Technologies**: Linux DRM/KMS, Wayland, NVIDIA Drivers, systemd, Kernel Tracing
- **Description**: A deep-dive investigative suite and technical reproduction repository isolating a multi-layer display lockup across NVIDIA proprietary drivers, GNOME Shell, Wayland DRM/KMS, RPM Fusion, and systemd suspend targets.
- **Repository / Link**: https://github.com/stevenceuppens/hybrid-gpu-wayland-freeze

## Technology Matrix
### Languages & Runtimes [Core]
- Go (Golang)
- Rust
- TypeScript
- Node.js
- Bun

### Systems & Low-Level [Specialized]
- Linux Kernel Subsystems
- Wayland Compositors
- DRM / KMS
- Embedded Linux
- Hardware Interfacing

### Distributed APIs & Protocols [Backend]
- ConnectRPC
- Protocol Buffers (Protobuf)
- gRPC
- CloudEvents
- REST & GraphQL

### Web & Mobile Applications [Full Stack]
- Next.js (App Router, RSC)
- React
- Expo (React Native)
- Tailwind CSS
- React Email

### Auth, Identity & Security [Enterprise]
- SpiceDB (Zanzibar ReBAC)
- OAuth 2.0 & OIDC
- Better-Auth
- Enterprise SSO / SAML

### Cloud & Infrastructure [Platform]
- Google Cloud (GCP)
- Vercel
- Linux Servers
- CDN & Edge Routing
- Containerization

### AI & Intelligent Systems [Modern]
- Agentic AI Systems
- Model Context Protocol (MCP)
- Google ADK
- Tool Calling Architecture

### Tooling & Monorepo Strategy [DevEx]
- Polyglot Monorepo Architecture
- Nx DevTools
- Bun Workspaces
- Automated CI/CD Quality Gates

## Engineering Articles & Publications
### The 5-Minute Display Lockup: Tracing a 4-Layer Linux Bug Across NVIDIA, GNOME, RPM Fusion, and systemd
- **URL**: https://www.x3m.industries/blog/the-5-minute-display-lockup
- **Date**: 2026-08-20
- **Reading Time**: 4 min read
- **Author**: Steven Ceuppens (Founder & Lead Architect)
- **Tags**: Linux, Wayland, DRM / KMS, NVIDIA, systemd, Systems Engineering
- **Summary**: How a subtle interaction between proprietary NVIDIA drivers, GNOME Shell Wayland compositing, RPM Fusion packaging scripts, and systemd power targets caused reproducible 5-minute display freezes on hybrid GPU workstations.

## Contact & Technical Inquiries
For technical consultations, architectural reviews, or project partnerships, contact: info@x3m.industries