Systems & Graphics Developer

Alex Andreba

I'm a systems programmer and graphics developer working primarily in Rust, Zig, WGSL and OpenCL, with a focus on GPU pipelines, compilers, and emulators — the software layer closest to the hardware. I'm drawn to problems where performance and correctness are equally non-negotiable, from real-time rendering to bytecode and instruction-set translation.

View GitHub →Watch the talks Connect on LinkedIn Email me

Based in Catalonia, Spain

Stack Rust · Zig · WGSL · Vulkan

Talks FOSDEM · OpenSouthCode · DORS/CLUC

About Me

I'm a systems programmer and graphics developer working across Rust, Zig, WGSL, WebAssembly and OpenCL. My work sits at the boundary between hardware and higher-level code — GPU pipelines, compilers, and instruction sets — the kind of layer where correctness and performance both matter and neither can be an afterthought.

I maintain a handful of open-source tools spanning graphics, compilers, language runtimes and GPU tooling, and I've spoken internationally about emulation and hardware translation — most recently at FOSDEM 2026 in Brussels.

FOCUS / 01

GPU & graphics programming

Vulkan & wgpu, shader pipelines, acceleration structures, real-time rendering.

FOCUS / 02

Compilers & bytecode

WebAssembly → SPIR-V, dynamic recompilation, instruction-set translation.

FOCUS / 03

Low-level systems

Rust & Zig runtime internals, FFI, memory models, GPU interop.

TECH STACK

RustZigWGSLVulkanwgpuOpenCLWebAssemblySPIR-VashC++

Projects

Portal Ray TracerIN PROGRESS

A real-time ray tracing renderer built on Vulkan and wgpu, supporting recursive traversal through portals.

RustwgpuWGSLRay Tracing

zigrc

Reference-counted pointers for Zig, inspired by Rust's Rc and Arc.

ZigMemory management

★ 91 · 4 forksView repo →

wasm2spirv

Compiles WebAssembly programs directly into SPIR-V shaders, bridging Wasm toolchains and GPU shader pipelines.

RustWebAssemblySPIR-V

★ 59 · 1 forkView repo →

blaze

A Rustified OpenCL experience — safe, ergonomic bindings for compute on the GPU.

RustOpenCLGPGPU

★ 46 · 1 forkView repo →

vgi

A C++20 library and engine framework for Vulkan applications — device setup, windowing, and an extensible system/layer architecture for the main loop.

C++VulkanEngine

★ 1 · 0 forksView repo →

nesmuFOSDEM 2026 TALK

A toy NES dynamic recompiler — translates 6502 game code into host machine code in real time. The subject of the FOSDEM 2026 talk below.

C++EmulationDynamic recompilation

★ 1 · 0 forksView repo →

Talks

JANUARY 2026 — BRUSSELS, BELGIUM

The joys and horrors of NES dynamic recompilation

FOSDEM 2026 — Retrocomputing devroom, Room H.1302

Building a dynamic recompiler for NES games together with the audience: translating code written for the console in real time into machine code directly executable on the host computer.

Watch the recording →LinkedIn recap →

JUNE 2024 — MÁLAGA, SPAIN

The beauty of hardware translation

OpenSouthCode 2024

A second run of the DORS/CLUC talk for OpenSouthCode's audience — taking attendees through emulating the 6502 system on modern architectures.

LinkedIn recap →

MAY 2024 — ZAGREB, CROATIA

The beauty of hardware translation

DORS/CLUC 2024

A journey through emulators and hardware translation: building a program that compiles 6502 binary code into host-executable code, and exploring the architecture, strengths and limitations of the 6502 processor.

Talk announcement →